Latest content added for UNT Digital Library Partner: UNT Libraries Government Documents Departmenthttps://digital.library.unt.edu/explore/partners/UNTGD/browse/?fq=untl_collection:TRAIL&fq=untl_decade:1910-1919&fq=str_title_serial:Technical+paper+(United+States.+Bureau+of+Mines)&fq=str_location_state:South+Dakota2023-11-28T19:01:22-06:00UNT LibrariesThis is a custom feed for browsing UNT Digital Library Partner: UNT Libraries Government Documents Department[Average Record Data Listings for Laredo Quadrangle]2023-11-28T19:01:22-06:00https://digital.library.unt.edu/ark:/67531/metadc2195534/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc2195534/"><img alt="[Average Record Data Listings for Laredo Quadrangle]" title="[Average Record Data Listings for Laredo Quadrangle]" src="https://digital.library.unt.edu/ark:/67531/metadc2195534/small/"/></a></p><p>Average record data listings taken during aerial gamma-ray and magnetic surveys of the Laredo quadrangle in Texas.</p>[Single Record Listings for Laredo Quadrangle]2023-11-28T19:01:21-06:00https://digital.library.unt.edu/ark:/67531/metadc2195535/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc2195535/"><img alt="[Single Record Listings for Laredo Quadrangle]" title="[Single Record Listings for Laredo Quadrangle]" src="https://digital.library.unt.edu/ark:/67531/metadc2195535/small/"/></a></p><p>Single record data listings taken during aerial gamma-ray and magnetic surveys of the Laredo quadrangle in Texas.</p>[Average Record Data Listings for Corpus Christi Quadrangle]2023-11-28T19:01:21-06:00https://digital.library.unt.edu/ark:/67531/metadc2195532/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc2195532/"><img alt="[Average Record Data Listings for Corpus Christi Quadrangle]" title="[Average Record Data Listings for Corpus Christi Quadrangle]" src="https://digital.library.unt.edu/ark:/67531/metadc2195532/small/"/></a></p><p>Average record data listings taken during aerial gamma-ray and magnetic surveys of the Corpus Christi quadrangle in Texas.</p>[Single Record Listings for Nulato Quadrangle]2023-11-28T19:01:21-06:00https://digital.library.unt.edu/ark:/67531/metadc2195537/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc2195537/"><img alt="[Single Record Listings for Nulato Quadrangle]" title="[Single Record Listings for Nulato Quadrangle]" src="https://digital.library.unt.edu/ark:/67531/metadc2195537/small/"/></a></p><p>Single record data listings taken during aerial gamma-ray and magnetic surveys of the Nulato quadrangle in Alaska.</p>[Average Record Data Listings for Nulato Quadrangle]2023-11-28T19:01:21-06:00https://digital.library.unt.edu/ark:/67531/metadc2195536/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc2195536/"><img alt="[Average Record Data Listings for Nulato Quadrangle]" title="[Average Record Data Listings for Nulato Quadrangle]" src="https://digital.library.unt.edu/ark:/67531/metadc2195536/small/"/></a></p><p>Average record data listings taken during aerial gamma-ray and magnetic surveys of the Nulato quadrangle in Alaska.</p>[Single Record Listings for Corpus Christi Quadrangle]2023-11-28T19:01:20-06:00https://digital.library.unt.edu/ark:/67531/metadc2195533/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc2195533/"><img alt="[Single Record Listings for Corpus Christi Quadrangle]" title="[Single Record Listings for Corpus Christi Quadrangle]" src="https://digital.library.unt.edu/ark:/67531/metadc2195533/small/"/></a></p><p>Single record data listings taken during aerial gamma-ray and magnetic surveys of the Corpus Christi quadrangle in Texas.</p>Differential Voltammetry Using The Hanging Mercury Drop Electrode2023-11-05T07:39:34-06:00https://digital.library.unt.edu/ark:/67531/metadc1202073/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202073/"><img alt="Differential Voltammetry Using The Hanging Mercury Drop Electrode" title="Differential Voltammetry Using The Hanging Mercury Drop Electrode" src="https://digital.library.unt.edu/ark:/67531/metadc1202073/small/"/></a></p><p>"The general techniques of voltammetry with continuously varying potential have been applied to a differential method in which two electrolysis cells are used, each with a hanging mercury drop electrode. Using this method it is possible to determine lO/sup -6/ solutions with increased precision, and it is also possible to analyze solutions as dilute as 10/sup -6/ without removing oxygen from the electrolysis cells. Mixtures can be analyzed easily by adding individual components of the mixture to the reference cell."</p>Precise Vapor Pressure Measurement At High Temperature2023-11-05T07:39:31-06:00https://digital.library.unt.edu/ark:/67531/metadc1202071/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202071/"><img alt="Precise Vapor Pressure Measurement At High Temperature" title="Precise Vapor Pressure Measurement At High Temperature" src="https://digital.library.unt.edu/ark:/67531/metadc1202071/small/"/></a></p><p>"An apparatus using a silica Bourdon gage is described for the measurement of vapor pressures or dissociation pressures with an accuracy of 0.1 mm and 0.1 deg C up to maximum pressures of atmospheric or beyond and maximum temperatures of 650 to 1250 deg C. The method is applicable to corrosive substances, to substances whose vapor pressure is sensitive to slight changes in composition, and to substances difficult to purify of volatile contaminants which affect the vapor pressure."</p>Transient Beam Loading In Linear Electron Accelerators2023-11-05T07:39:31-06:00https://digital.library.unt.edu/ark:/67531/metadc1202072/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202072/"><img alt="Transient Beam Loading In Linear Electron Accelerators" title="Transient Beam Loading In Linear Electron Accelerators" src="https://digital.library.unt.edu/ark:/67531/metadc1202072/small/"/></a></p><p>"The subject of beam loading in linear electron accelerators has been discussed. With suitable design it is possible to place the equilibrium electron phase angle well ahead of the crest of the traveling wave in the accelerator. With beam loading the equilibrium position will move toward the crest, but the electron energy will remain constant or nearly so over a considerable range of loading. Some loss in energy will result from moving the equilibrium phase angle off the wave crest but the spread in energies due to beam loading should be reduced.</p>Zircex Kinetics And Uranium Loss Study2023-11-05T07:39:30-06:00https://digital.library.unt.edu/ark:/67531/metadc1202070/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202070/"><img alt="Zircex Kinetics And Uranium Loss Study" title="Zircex Kinetics And Uranium Loss Study" src="https://digital.library.unt.edu/ark:/67531/metadc1202070/small/"/></a></p><p>"A study was made of the effects of temperature, impurities in the hydrogen chloride, flow rates, and niobium content on both the reaction rates and insoluble uranium losses in the Zircex Process is presented."</p>Zircex Uranium Sublimate Loss2023-11-05T07:39:29-06:00https://digital.library.unt.edu/ark:/67531/metadc1202069/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202069/"><img alt="Zircex Uranium Sublimate Loss" title="Zircex Uranium Sublimate Loss" src="https://digital.library.unt.edu/ark:/67531/metadc1202069/small/"/></a></p><p>"One of the limitations of the Zircex Process is the large percentage loss of U which is carried off with the volatile ZrCl/sub 4/. Since the ratio of U to Zr in the fuel element is quite small (< 1%), a large percentage of U loss can be caused by small amounts of U in the ZrCl/sub 4/ sublimate. The U loss must be kept below 1% if the Zircex Process is to be adapted to industrial scale processing."</p>Theory Of The Constant Gradient Linear Electron Accelerator2023-11-05T07:39:28-06:00https://digital.library.unt.edu/ark:/67531/metadc1202068/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202068/"><img alt="Theory Of The Constant Gradient Linear Electron Accelerator" title="Theory Of The Constant Gradient Linear Electron Accelerator" src="https://digital.library.unt.edu/ark:/67531/metadc1202068/small/"/></a></p><p>"The effect of beam loading upon the design and performance of the accelerator is examined. Results are given in dimensionless form so that the various equations and grams can be used at any operating frequency. The constant gradient accelerator is somewhat less subject to beam loading than the uniform accelerator structure. For an accelerator of given filling time and 20% more."</p>Specification for Cleaning Metal Components and Systems for Liquid-Metal Cooled Power Reactors2023-11-05T07:39:25-06:00https://digital.library.unt.edu/ark:/67531/metadc1202066/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202066/"><img alt="Specification for Cleaning Metal Components and Systems for Liquid-Metal Cooled Power Reactors" title="Specification for Cleaning Metal Components and Systems for Liquid-Metal Cooled Power Reactors" src="https://digital.library.unt.edu/ark:/67531/metadc1202066/small/"/></a></p><p>"The degree of cleanliness is defined, and the methods and materials to be used are outlined for carbon and low alloy steels, 300 and 400 series ferritic and austenitic stainless steels, special Ni-Cr base heat-resistant hard-facing and high-temperature brazing alloys, and some non-ferrous materials."</p>Exit Beam Trajectories for the Cambridge Electron Accelerator2023-11-05T07:39:24-06:00https://digital.library.unt.edu/ark:/67531/metadc1202064/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202064/"><img alt="Exit Beam Trajectories for the Cambridge Electron Accelerator" title="Exit Beam Trajectories for the Cambridge Electron Accelerator" src="https://digital.library.unt.edu/ark:/67531/metadc1202064/small/"/></a></p><p>"A method is outlined for calculating the trajectories, through the magnetic field of the following magnet pair of positive and negative particles of different momenta produced in a target. Representative trajectories were computed by this method and are given numerically."</p>The Input Admittance of a Ring Circuit2023-11-05T07:39:24-06:00https://digital.library.unt.edu/ark:/67531/metadc1202065/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202065/"><img alt="The Input Admittance of a Ring Circuit" title="The Input Admittance of a Ring Circuit" src="https://digital.library.unt.edu/ark:/67531/metadc1202065/small/"/></a></p><p>"A ring circuit is a succession or two-port networks and at least one three-port network, each feeding the next at one port and the last feeding the first so that the sequence closes on itself leaving at least one input port. The input admittance is derived in terms ef various matrices describing the circuit for one- and two-input port rings."</p>Betatron Oscillations and Equilibrium Orbits in Terms of Amplitude and Phase Functions2023-11-05T07:39:22-06:00https://digital.library.unt.edu/ark:/67531/metadc1202063/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202063/"><img alt="Betatron Oscillations and Equilibrium Orbits in Terms of Amplitude and Phase Functions" title="Betatron Oscillations and Equilibrium Orbits in Terms of Amplitude and Phase Functions" src="https://digital.library.unt.edu/ark:/67531/metadc1202063/small/"/></a></p><p>"Formulas are given to express the general particle trajectory and the equilibrium orbit for a slightly disturbed synchrotron in terms of the amplitude and phase functions for the ideal machine. If these functions are known, orbit computations can be carried out by simple integration procedures. The formalism is expected to be useful especially for considerations such as beam alignment or generation of an external electron beam. Some equations given earlier are repeated for completeness."</p>Radiation Effects in Circular Electron Accelerators2023-11-05T07:39:20-06:00https://digital.library.unt.edu/ark:/67531/metadc1202062/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202062/"><img alt="Radiation Effects in Circular Electron Accelerators" title="Radiation Effects in Circular Electron Accelerators" src="https://digital.library.unt.edu/ark:/67531/metadc1202062/small/"/></a></p><p>"The effects of radiation emission on the motion of electrons in high energy synchrotrons are analyzed. The damping rates and quantum excitation of the three principal modes of oscillation are derived for strong focusing and constant gradient accelerators. Methods for correcting the radiation effects for strong focusing accelerators are discussed."</p>Analysis of Spurious Modes in Magnet Power Supply2023-11-05T07:39:19-06:00https://digital.library.unt.edu/ark:/67531/metadc1202061/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202061/"><img alt="Analysis of Spurious Modes in Magnet Power Supply" title="Analysis of Spurious Modes in Magnet Power Supply" src="https://digital.library.unt.edu/ark:/67531/metadc1202061/small/"/></a></p><p>"The resonant frequencies of the magnet power supply are investigated. It is found that there are eleven resonant modes in addition to the desired mode of operation with six additional resonant frequencies. From measurements of the choke model, it appears that the frequencies of some of the spurious modes may lie in the same range as the desired mode of operation."</p>Radiation Damage to Vacuum Chamber Walls2023-11-05T07:39:18-06:00https://digital.library.unt.edu/ark:/67531/metadc1202060/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202060/"><img alt="Radiation Damage to Vacuum Chamber Walls" title="Radiation Damage to Vacuum Chamber Walls" src="https://digital.library.unt.edu/ark:/67531/metadc1202060/small/"/></a></p><p>"The problem of radiation derange to the walls of two types of vacuum chamber for the 6 Bev Cambridge Electron Accelerator was studied. Radiation damage may arise from the synchrotron radiation and from electrons which are not accepted at injection. The synchrotron radiation produces a large amount of secondary x radiation which is isotropic, and therefore complicates the arrangement of internal shielding. The 20 Mev electrons from the lines cannot be attenuated by shielding. It is concluded that dosages of the order of 10/sup 7/ rad/day near the inflector are unavoidable. This would exceed the allowable dosage for a tube made by cementing a stainless steel liner to supporting ribs, and also exceed the test dosages (so far as we know) for alumina ceramics."</p>Dynamic B and n-Behavior Up to 7600 Gauss in Magnet Model Mark Ii Comparison of Results With Long and Small Grad Coils2023-11-05T07:39:16-06:00https://digital.library.unt.edu/ark:/67531/metadc1202059/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202059/"><img alt="Dynamic B and n-Behavior Up to 7600 Gauss in Magnet Model Mark Ii Comparison of Results With Long and Small Grad Coils" title="Dynamic B and n-Behavior Up to 7600 Gauss in Magnet Model Mark Ii Comparison of Results With Long and Small Grad Coils" src="https://digital.library.unt.edu/ark:/67531/metadc1202059/small/"/></a></p><p>"Magnetic measurements were performance at excitation levels ranging from 4000 to 7600 gauss, to study the dynamic behavior of the magnetic and gradient lengths of the CEA magnet sectors. The influence of the proposed metal vacuum chamber on field and gradient was experimentally determined. Results of measurements made with a 26 in. long grad coil and with small circular grad coils are compared. The reliability of the 26 in. long grad coil is demonstrated."</p>Injection Trajectories and Beam Matching for the Cambridge Electron Accelerator2023-11-05T07:39:13-06:00https://digital.library.unt.edu/ark:/67531/metadc1202051/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202051/"><img alt="Injection Trajectories and Beam Matching for the Cambridge Electron Accelerator" title="Injection Trajectories and Beam Matching for the Cambridge Electron Accelerator" src="https://digital.library.unt.edu/ark:/67531/metadc1202051/small/"/></a></p><p>"ABS>Injection trajectories were calculated for different injection conditions for the Cambridge Electron Accelerator, considering also the effect of magnetic fringing fields. The general problem of matching the emittance of the linac to the acceptance of the synchrotron in the transversal phase space is considered, and it is shown that this can be done by a set of two quadrupole lenses. In order to eliminate rudial betatron oscillations due to energy deviations of the injected particles, a pulsed electric quadrupole lens in the synchrotron in combination with two deflectors between linac and synchrotron can be used to place particles of different energies on their specific equilibrium orbits. A layout of the whole injection system following the output of the linac is given."</p>A Report on the Kinematics of High Energy Electron Scattering2023-11-05T07:39:13-06:00https://digital.library.unt.edu/ark:/67531/metadc1202052/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202052/"><img alt="A Report on the Kinematics of High Energy Electron Scattering" title="A Report on the Kinematics of High Energy Electron Scattering" src="https://digital.library.unt.edu/ark:/67531/metadc1202052/small/"/></a></p><p>"A convenient summary is given of useful formulas on the kinematics of high energy electron scattering together with a derivation of the relevant formulas for transforming from the center of mass to the laboratory system such parameters as scattering cross sections. The formulas derived hold for any two- body collision: the approximation (m = 0) employed for the electron scattering calculations is rigorously true for the elastic scattering of photons."</p>Amplitude and Phase Functions for the Revised Parameters of the Cambridge Electron Accelerator2023-11-05T07:39:13-06:00https://digital.library.unt.edu/ark:/67531/metadc1202053/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202053/"><img alt="Amplitude and Phase Functions for the Revised Parameters of the Cambridge Electron Accelerator" title="Amplitude and Phase Functions for the Revised Parameters of the Cambridge Electron Accelerator" src="https://digital.library.unt.edu/ark:/67531/metadc1202053/small/"/></a></p><p>"The phase and amplitude functions describing the betatron oscillations in the synchrotron are calculated using the revised parameters of the Cambridge Electron Accelerator. The results are given numerically and plotted in a graph for one machine period."</p>Notes on the A-2-Compiler System2023-11-05T07:39:13-06:00https://digital.library.unt.edu/ark:/67531/metadc1202054/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202054/"><img alt="Notes on the A-2-Compiler System" title="Notes on the A-2-Compiler System" src="https://digital.library.unt.edu/ark:/67531/metadc1202054/small/"/></a></p><p>"An account is given of an extensive study of the A-2 Compiler System for the Remington Rand Univac digital computer. In particular, the following topics are discussed: application and performance of subroutines, segmenting, and introduction of subroutines to the library."</p>Evaluation of Foreign Multiplier Phototubes2023-11-05T07:39:13-06:00https://digital.library.unt.edu/ark:/67531/metadc1202055/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202055/"><img alt="Evaluation of Foreign Multiplier Phototubes" title="Evaluation of Foreign Multiplier Phototubes" src="https://digital.library.unt.edu/ark:/67531/metadc1202055/small/"/></a></p><p>"Several multiplier phototubes produced by England, Russia, or Switzerland were evaluated for amplification, photocathode sensitivity, photo-electron collection efficiency, cathode uniformity, and dark current. A description of the various tubes by designation numbers is given, along nth a description of techniques and equipment used in testing."</p>Effect of Quadrupole Lenses2023-11-05T07:39:13-06:00https://digital.library.unt.edu/ark:/67531/metadc1202056/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202056/"><img alt="Effect of Quadrupole Lenses" title="Effect of Quadrupole Lenses" src="https://digital.library.unt.edu/ark:/67531/metadc1202056/small/"/></a></p><p>"The effect of correcting quadrupole lenses on the betatron oscillation characteristics of an AG synchrotron was studied, and general formulas are given for the fractional changes of the amplitude and phase functions. Calculations performed for different setups of different numbers of lenses for the CEA synchrotron structure point out that one may correct for sizable errors in the n- value by means of 8 pairs of quadrupole lenses in two consecutive straight sections with the focusing lens between defocusing sectors and vice versa. An increase of BETA /sub max/ of about 5% is obtained for DELTA n/n approximately 0.04. It was found that the necessary corrections can probably be obtained satisfactorily with lenses of 6 in. length. "</p>Pole-Face Windings2023-11-05T07:39:13-06:00https://digital.library.unt.edu/ark:/67531/metadc1202057/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202057/"><img alt="Pole-Face Windings" title="Pole-Face Windings" src="https://digital.library.unt.edu/ark:/67531/metadc1202057/small/"/></a></p><p>"A summary is presented of a preliminary study of the application of pole- face windings to the Cambridge Electron Accelerator. Estimates are made of the currents required, the forces on the wibdings and the voltages induced by the magnetic flux. The possibility of automatic control of the pole-face currents in explored, and feasible control systems are suggested."</p>Betatron Oscillation Frequency Shift Due To "N-Errors"2023-11-05T07:39:13-06:00https://digital.library.unt.edu/ark:/67531/metadc1202058/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202058/"><img alt="Betatron Oscillation Frequency Shift Due To "N-Errors"" title="Betatron Oscillation Frequency Shift Due To "N-Errors"" src="https://digital.library.unt.edu/ark:/67531/metadc1202058/small/"/></a></p><p>"Expressions are found to relate DELTA gamma to the n-errors.'' It is demonstrated that the integral n-value concept'' is of no use in the present case. A modification of integrated n-value'' is suggested."</p>The SNAP II Power Conversion System. Topical Report No. 3. Dynamic Analysis2023-07-09T18:09:50-05:00https://digital.library.unt.edu/ark:/67531/metadc1248800/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1248800/"><img alt="The SNAP II Power Conversion System. Topical Report No. 3. Dynamic Analysis" title="The SNAP II Power Conversion System. Topical Report No. 3. Dynamic Analysis" src="https://digital.library.unt.edu/ark:/67531/metadc1248800/small/"/></a></p><p>SNAP II is the designation for a nuclear auxiliary power unit, designed primarily for utilization in the WS117L satellite vehicle. The SNAP II system consists of a reactor heat source, a mercury Rankine engine, and an alternator. Dynamic analysis of the power conversion system was conducted utilizing a comprehensive analog computer simulation. Feasibility of a parasitic load control for numerous system disturbances was demonstrated. This analysis was performed under a subcontract to to Atomics International as part of the Atomic Energy Commission Contract No. AT(11-1)-GEN-8.</p>The Influence of Point Defects on the Mechanical Properties of Lithium Fluoride : First Technical Report2023-07-09T18:09:47-05:00https://digital.library.unt.edu/ark:/67531/metadc1248799/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1248799/"><img alt="The Influence of Point Defects on the Mechanical Properties of Lithium Fluoride : First Technical Report" title="The Influence of Point Defects on the Mechanical Properties of Lithium Fluoride : First Technical Report" src="https://digital.library.unt.edu/ark:/67531/metadc1248799/small/"/></a></p><p>Lithium fluoride crystals were quenched into silicone oil from near the melting point. The return to an equilibrium structure during annealing was observed by means of mechanical tests and etching techniques. Crystals containing three levels of impurity, zone refined, commercially pure, and doped with 0.05 mole per cent magnesium, were used in order to separate the effects of foreign ions from those of thermal vacancies. The changes of mechanical properties produced by quenching and by subsequent annealing were generally attributable to point defect-dislocation interactions. Precision density determinations indicated that about 10% of the equilibrium concentration of vacancies at the melting point was retained at room temperature by the quench. The density could be restored to its normal value by annealing. Two important annealing stages were observed. At about 200 deg C the precipitation of impurities retained in solution by the quench caused a sharp increase in the hardness as measured at room temperature. Isothermal annealing revealed the hardening process to have an activation energy of about 0.5 ev which is probably the energy for migration of an associated magnesium ion-lithium vacancy pair. Between 300 and 400 deg C the removal of dislocations and probably vacancy clusters resulting from the quench caused pronounced softening so that the quenched-annealed crystals were softer than as-grown-annealed crystals. (auth)</p>Upper Atmosphere Monitoring Program : Progress Report No. 8 for May 1, 1959 through July 31, 19592023-07-09T18:09:44-05:00https://digital.library.unt.edu/ark:/67531/metadc1248797/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1248797/"><img alt="Upper Atmosphere Monitoring Program : Progress Report No. 8 for May 1, 1959 through July 31, 1959" title="Upper Atmosphere Monitoring Program : Progress Report No. 8 for May 1, 1959 through July 31, 1959" src="https://digital.library.unt.edu/ark:/67531/metadc1248797/small/"/></a></p><p>The overall scope of the program encompasses both research into the physical parameters involved in the collection of airborne radioactive particles and the development, fabrication and calibration of balloon-borne sampling equipment to enable the precise determination of stratospheric particle concentration and particle size distribution.</p>Progress Report for Period Covering January 15, 1960 - February 15, 19602023-07-09T18:09:44-05:00https://digital.library.unt.edu/ark:/67531/metadc1248798/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1248798/"><img alt="Progress Report for Period Covering January 15, 1960 - February 15, 1960" title="Progress Report for Period Covering January 15, 1960 - February 15, 1960" src="https://digital.library.unt.edu/ark:/67531/metadc1248798/small/"/></a></p><p>Thorium Procedure: As was mentioned in the last report, ammonium nitrate was substituted for ferric nitrate as a salting agent. Also, the acidity of the nitrate solution was reduced from 3.0 molar to 0.5 molar. the revised thorium procedure is described in the report. Radium Procedure: Work has ben initiated on the procedure of Petrow, Nietzel and DeSesa (Winchester Procedure) to determine if the procedure is suitable for very low level concentrations of radium.</p>Low Energy Nuclear Physics : Second Annual Report for the Period February 1, 1959 to January 31, 19602023-07-09T18:09:43-05:00https://digital.library.unt.edu/ark:/67531/metadc1248795/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1248795/"><img alt="Low Energy Nuclear Physics : Second Annual Report for the Period February 1, 1959 to January 31, 1960" title="Low Energy Nuclear Physics : Second Annual Report for the Period February 1, 1959 to January 31, 1960" src="https://digital.library.unt.edu/ark:/67531/metadc1248795/small/"/></a></p><p>The general expression for the angular correlation between radiations produced in successive cascade transitions is derived by use of Racah algebra. The result is then specialized to the beta - gamma correlation and applied to two cases in which additional properties of the photon are specified, the circular polarization and the plane polarization. The prospect of testing time reversal and determining nuclear matrix element ratios by beta - gamma correlation measurements is explored using the nuclide Tm/sup 170/ as an example. The directional angular correlation between the 2.31-Mev beta and the subsequent 0.605-Mev gamma emitted in the decay of Sb/sup 124/ was measured as a function of the beta energy. The K-conversion coefficient of the 279-kev gamma following beta decay of Hg/sup 203/ was measured by comparing the x-ray and gamma intensities in a scintillation spectrometer. The measured valve of alpha /sub k/ = 0.195 plus or minus 0.014 indicates that the transition is M1 with E2 mixed to the extent of 63%. The angular correlation of the 107-1.24 Mev gamma cascade in Zn/sup 68/ following the decay of 68-min Ga/sup 68/ is shown. The Legendre polynomial expansion coefficients were deter-gular correlation in the decay of Sb/ sup 118/ was studied between the 1.03-1.22 Mev gammas and between the 0.260-1.22 Mev gammas in an attempt to deduce the spins of the corresponding levels of Sn/ sup 118/. Apparatus: A linear amplifier employing triode pairs connected in cascade and R-C clipping was designed for applications to scintillation and proportional counter gamma and x-ray spectroscopy in the kilovolt region. The circuit design and performance are described. A wideband distributed amplifier which uses twelve 6688/E180F pentodes is described. Design, construction, and performance details are discussed. A thin lens beta spectrometer designed particularly for beta - gamma coincidence spectroscopy and angular correlation measurements was constructed.</p>Research on Krypton 85 : Seventh Monthly Progress Report Covering December 1, 1959 to December 31, 19592023-07-09T18:09:43-05:00https://digital.library.unt.edu/ark:/67531/metadc1248796/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1248796/"><img alt="Research on Krypton 85 : Seventh Monthly Progress Report Covering December 1, 1959 to December 31, 1959" title="Research on Krypton 85 : Seventh Monthly Progress Report Covering December 1, 1959 to December 31, 1959" src="https://digital.library.unt.edu/ark:/67531/metadc1248796/small/"/></a></p><p>Work during this report period includes a continuation of the study of the effect of krypton 85 on the polymerization of styrene; an attempt at evaluation of the polymers produced; and the effect of krypton radiation on the electrical properties of gases, such as the rare gases, and nitrogen, and oxygen. the results obtained are summarized in the report.</p>Studies of Reactor Containment : Monthly Technical Progress Report No. 322023-07-09T18:09:36-05:00https://digital.library.unt.edu/ark:/67531/metadc1248794/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1248794/"><img alt="Studies of Reactor Containment : Monthly Technical Progress Report No. 32" title="Studies of Reactor Containment : Monthly Technical Progress Report No. 32" src="https://digital.library.unt.edu/ark:/67531/metadc1248794/small/"/></a></p><p>The report covers work performed during the period December 1, 1959 through December 31, 1959. The general objectives of the program of "Studies of Reactor Containment" are to accomplish theoretical and experimental investigations of the loads to which external containment structures for nuclear reactors are subjected in the vent of a violent incident at the reactor core, the evaluation of methods of reducing that loading, and the study of the response of and design criteria for external containment structures as a result of such loading. Progress of technical effort during the report period is summarized for each of the eight tasks of the program..</p>Results of Experiments Made With U.S.B.M. Electrocerium2023-07-09T18:09:30-05:00https://digital.library.unt.edu/ark:/67531/metadc1248793/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1248793/"><img alt="Results of Experiments Made With U.S.B.M. Electrocerium" title="Results of Experiments Made With U.S.B.M. Electrocerium" src="https://digital.library.unt.edu/ark:/67531/metadc1248793/small/"/></a></p><p>Data obtained in test of Bureau of Mines electrocerium are presented. The cerium was subjected to spectrochemical analysis, x-ray diffraction analysis, thermal analysis, metallographic tests, and high-pressure experiments.</p>Biological Effects of Radiation, and Related Biochemical and Physical Studies : Semiannual Progress Report [for] Period May 1, 1959 - October 31, 19592023-07-09T18:09:19-05:00https://digital.library.unt.edu/ark:/67531/metadc1248792/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1248792/"><img alt="Biological Effects of Radiation, and Related Biochemical and Physical Studies : Semiannual Progress Report [for] Period May 1, 1959 - October 31, 1959" title="Biological Effects of Radiation, and Related Biochemical and Physical Studies : Semiannual Progress Report [for] Period May 1, 1959 - October 31, 1959" src="https://digital.library.unt.edu/ark:/67531/metadc1248792/small/"/></a></p><p>Progress reports from four divisions are included: (1) Division of Biophysics; (2) Division of Clinical Investigation; (3) Division of Nucleoprotein Chemistry; and (4) Radiochemistry Section.</p>Organic Coolant Reclamation Annual Report : December 15, 1958 through December 14, 19592023-07-09T18:09:09-05:00https://digital.library.unt.edu/ark:/67531/metadc1248791/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1248791/"><img alt="Organic Coolant Reclamation Annual Report : December 15, 1958 through December 14, 1959" title="Organic Coolant Reclamation Annual Report : December 15, 1958 through December 14, 1959" src="https://digital.library.unt.edu/ark:/67531/metadc1248791/small/"/></a></p><p>Potential methods have been examined for the reclamation of high boiler arising from the degradation of polyphenol materials in use as reactor coolants and moderators. To define the chemistry of potential reclamation processes, model polyphenol compounds were used. These include biphenyl, o, m and p-terphenyl, and p-quaterphenyl. Emphasis has been on hydrocracking, redistribution (reaction with benzene), and partial reduction. Preliminary study has been made of the application these techniques to high boiler from Santowax-OM used in the OMRE. The three methods show promise but require detailed investigation to minimize carbon formation to locate optimum operating conditions,.</p>Research and Investigation Leading to Methods of Generating and Detecting Radiation in the 100 to 1000 Micron Wavelength Range of the Spectrum. Quarterly Progress Report No. 15 for 1 September to 1 December 19592023-07-09T18:09:05-05:00https://digital.library.unt.edu/ark:/67531/metadc1248790/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1248790/"><img alt="Research and Investigation Leading to Methods of Generating and Detecting Radiation in the 100 to 1000 Micron Wavelength Range of the Spectrum. Quarterly Progress Report No. 15 for 1 September to 1 December 1959" title="Research and Investigation Leading to Methods of Generating and Detecting Radiation in the 100 to 1000 Micron Wavelength Range of the Spectrum. Quarterly Progress Report No. 15 for 1 September to 1 December 1959" src="https://digital.library.unt.edu/ark:/67531/metadc1248790/small/"/></a></p><p>Purpose of this research is twofold:: (1) to uncover new principles or techniques from which a CW source of electromagnetic radiation for the low millimeter and submillimeter wavelength range can be developed; and (2) to develop suitable detectors, components, and measuring techniques for evaluating and using the radiation as a diagnostic tool for plasma physics</p>University of Illinois, Graduate College, Digital Computer Laboratory, Technical Progress Report2023-07-09T18:08:58-05:00https://digital.library.unt.edu/ark:/67531/metadc1248789/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1248789/"><img alt="University of Illinois, Graduate College, Digital Computer Laboratory, Technical Progress Report" title="University of Illinois, Graduate College, Digital Computer Laboratory, Technical Progress Report" src="https://digital.library.unt.edu/ark:/67531/metadc1248789/small/"/></a></p><p>The report includes summary reports in five areas (1) High-speed computer program, (2) Switching circuit theory, (3) ILLIAC use and operations, (4) IBM 650 use and operation, and (5) General laboratory information.</p>An Aerodynamic Raindrop Sorter. Technical Progress Report No. 1.2023-07-09T18:08:48-05:00https://digital.library.unt.edu/ark:/67531/metadc1248788/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1248788/"><img alt="An Aerodynamic Raindrop Sorter. Technical Progress Report No. 1." title="An Aerodynamic Raindrop Sorter. Technical Progress Report No. 1." src="https://digital.library.unt.edu/ark:/67531/metadc1248788/small/"/></a></p><p>A pilot model of an Aerodynamic Raindrop Sorter was constructed along the lines suggested by mathematical analysis. The function of the analyzer is to sort natural rain according to drop size and to collect the sorted drops for further analysis. The pilot model, a small wind tunnel inclined at 45 deg to the horizontal, demonstrated the feasibility of aerodynamic rain drop sorting over a wide range of drop sizes. (auth)</p>Applications for Lanthanon Oxides and Other Compounds in the Ceramic Industry2023-07-09T18:08:47-05:00https://digital.library.unt.edu/ark:/67531/metadc1248786/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1248786/"><img alt="Applications for Lanthanon Oxides and Other Compounds in the Ceramic Industry" title="Applications for Lanthanon Oxides and Other Compounds in the Ceramic Industry" src="https://digital.library.unt.edu/ark:/67531/metadc1248786/small/"/></a></p><p>Separation processes for production of pure rare earth oxides in useful quantities are discussed. A review of applications of these oxides in the ceramic industry in production of glasses, glazes, porcelain enamels, refractories, abrasives, electronic ceramics, and nuclear ceramics is also presented. 46 references.</p>The Design and Uses of High Flux Research and Test Reactors2023-07-09T18:08:47-05:00https://digital.library.unt.edu/ark:/67531/metadc1248787/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1248787/"><img alt="The Design and Uses of High Flux Research and Test Reactors" title="The Design and Uses of High Flux Research and Test Reactors" src="https://digital.library.unt.edu/ark:/67531/metadc1248787/small/"/></a></p><p>The need for thermal and fast neutron fluxes in the range of 1 to 5 x l0/ sup 15/ neutrons/cm/sup 2/(sec) for the production of heavy elements such as Cf/ sup 252/ and other special isotopes and for improving the quality of beam experiments, reactor materials testing work, and solid state research has led to plans for the construction of three ultra high flux research reactors. The designs of these and other high flux research reactors are based on the general technology of enriched tank-type reactors; however, they utilize the principle of separate fuel and moderator regions to achieve flux peaking in these regions. Thus, proposed designs take the form of an annular fuel region with internal and external moderating regions or an under moderated core with an external moderator or reflector. In such arrangements, the thermal flux peaks in the moderating regions and the fast flux peaks in the fuel region, which results in maximum fast and thermal fluxes per unit of power. Since most of the moderation of fast neutrons takes place outside of the fuel region, the thermal flux peaking depends on the number of fast neutrons leaking from the reactor core, which in turn depends on the power density in the core. Thus, maximum fluxes of neutrons at all energy levels are proportional to the power density in the reactor core. Interest in high flux reactors, therefore, has led to a consideration of ways in which the power density in the reactor core, and thereby the flux, may be increased.</p>Annual Report of Research Progress2023-07-09T18:08:43-05:00https://digital.library.unt.edu/ark:/67531/metadc1248785/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1248785/"><img alt="Annual Report of Research Progress" title="Annual Report of Research Progress" src="https://digital.library.unt.edu/ark:/67531/metadc1248785/small/"/></a></p><p>This technical report constitutes a brief review of the work undertaken, entirely or in part, under the Contract AT(30-1)-1772 with eh United States Atomic Energy Commission. The work published during 1959 is listed at the end of this report and copies of the reprints or reports are attached where available. These investigations have been concerned with the examination of defect production and behavior as it may be observed by high frequency ultrasonic attenuation and velocity (modulus) changes in such materials as quartz, silicon, germanium, alkali halides (especially NaCl and XCl), high purity aluminum, and glass containing boron. The irradiations used are cobalt 60 gamma-ray irradiation and the reactor irradiation obtained in the Brookhaven National Laboratory graphite reactor.</p>High Energy Storage Ceramic Capacitor. Quarterly Report No. 6 for April 1, 1958 -- June 30, 19582023-07-09T18:08:41-05:00https://digital.library.unt.edu/ark:/67531/metadc1248784/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1248784/"><img alt="High Energy Storage Ceramic Capacitor. Quarterly Report No. 6 for April 1, 1958 -- June 30, 1958" title="High Energy Storage Ceramic Capacitor. Quarterly Report No. 6 for April 1, 1958 -- June 30, 1958" src="https://digital.library.unt.edu/ark:/67531/metadc1248784/small/"/></a></p><p>The chief purpose of this contract is the development of ceramic materials with high dielectric constant and high dielectric strength values, and suitable for use of dielectrics in capacitors capable of storing large amounts of energy in small volumes. The principal features of work during this quarter have been research into the causes of variation in ceramic density, overcoming the problems of pressing large disks, and the development of fully-contoured medium-sized disks. Work performed during the sixth quarter included (1) Material development and sample preparation; (2) Ceramic properties and forming; (3) Fabrication of large ceramics; (4) Electrical measurements ; and (5) Capacitor measurements and design</p>High Energy Storage Ceramic Capacitor. Quarterly Report No. 5 [for] January 1, 1958 -- March 31, 19582023-07-09T18:08:37-05:00https://digital.library.unt.edu/ark:/67531/metadc1248783/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1248783/"><img alt="High Energy Storage Ceramic Capacitor. Quarterly Report No. 5 [for] January 1, 1958 -- March 31, 1958" title="High Energy Storage Ceramic Capacitor. Quarterly Report No. 5 [for] January 1, 1958 -- March 31, 1958" src="https://digital.library.unt.edu/ark:/67531/metadc1248783/small/"/></a></p><p>The chief purpose of this contract is the development of ceramic materials with high dielectric constant and high dielectric strength values, and suitable for use of dielectrics in capacitors capable of storing large amounts of energy in small volumes. Work performed during the fifth quarter included (1) Material development and sample preparation; (2) Sample testing; (3) Optical studies of titanates; (4) Fabrication of large ceramics; and (5) Capacitor design.</p>High Energy Storage Ceramic Capacitor. Quarterly Report No. 4 [for] August 19, 1957 -- December 31, 19572023-07-09T18:08:35-05:00https://digital.library.unt.edu/ark:/67531/metadc1248782/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1248782/"><img alt="High Energy Storage Ceramic Capacitor. Quarterly Report No. 4 [for] August 19, 1957 -- December 31, 1957" title="High Energy Storage Ceramic Capacitor. Quarterly Report No. 4 [for] August 19, 1957 -- December 31, 1957" src="https://digital.library.unt.edu/ark:/67531/metadc1248782/small/"/></a></p><p>The chief purpose of this contract is the development of ceramic materials with high dielectric constant and high dielectric strength values, and suitable for use of dielectrics in capacitors capable of storing large amounts of energy in small volumes. Work performed during the fourth quarter included (1) Material development and sample preparation; (2) Sample testing; (3) discussion of ceramic density measurements; (4) Optical studies of titanates; (5) Fabrication of large ceramics; and (6) Capacitor design.</p>Corrosion of INOR-8 and Inconel Dissolver Components of the Fluoride-Volatility Process2023-07-09T18:08:32-05:00https://digital.library.unt.edu/ark:/67531/metadc1248781/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1248781/"><img alt="Corrosion of INOR-8 and Inconel Dissolver Components of the Fluoride-Volatility Process" title="Corrosion of INOR-8 and Inconel Dissolver Components of the Fluoride-Volatility Process" src="https://digital.library.unt.edu/ark:/67531/metadc1248781/small/"/></a></p><p>The corrosion of INOR-8 and Inconel dissolver components used in the fluoride volatility process for the dissolution of zirconium with anhydrous HF in molten salts was investigated. Ten dissolution runs were made using simulated subassemblies formed from Zircoloy-2. The dissolver and components were made from INOR-8. Both the dissolver vessel and draft tube were examined several times during the series of runs. The solids which formed at different areas in the system were also analyzed. The results showed that the corrosion of the INOR-8 dissolver was greatest at the salt-off gas interface and at the HF gas inlet. Almost all of the corrosion took place during run 10 when no zirconium was present. Portions of the dissolver were cleaned after run 10 and sent to BMI for evaluation. The results of the Battelle metallographic examinations of the portions are included along with several photographs. The results with Inconel tubes in the copper-lined hydro-fluorinator confirmed the observations that the liquid gas interface areas were the most susceptible to attack.</p>Radioisotope X-ray Generator. Quarterly Progress Report No. 2 Covering the Period from October 1, 1959 to December 31, 19592023-07-09T18:08:18-05:00https://digital.library.unt.edu/ark:/67531/metadc1248780/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1248780/"><img alt="Radioisotope X-ray Generator. Quarterly Progress Report No. 2 Covering the Period from October 1, 1959 to December 31, 1959" title="Radioisotope X-ray Generator. Quarterly Progress Report No. 2 Covering the Period from October 1, 1959 to December 31, 1959" src="https://digital.library.unt.edu/ark:/67531/metadc1248780/small/"/></a></p><p>An electromagnetic quadrupole lane system been developed and constructed which will be used to study the focusing of beta-rays. A current-carrying wire analog has also been developed to make preliminary studies of the accessory lane parameters.</p>Equilibrium Extraction Characteristics of Alkyl Amines and Nuclear Fuels Metals in Nitrate Systems. Progress Report No. V for the Period July 1 - September 30, 19592023-07-09T18:08:14-05:00https://digital.library.unt.edu/ark:/67531/metadc1248779/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1248779/"><img alt="Equilibrium Extraction Characteristics of Alkyl Amines and Nuclear Fuels Metals in Nitrate Systems. Progress Report No. V for the Period July 1 - September 30, 1959" title="Equilibrium Extraction Characteristics of Alkyl Amines and Nuclear Fuels Metals in Nitrate Systems. Progress Report No. V for the Period July 1 - September 30, 1959" src="https://digital.library.unt.edu/ark:/67531/metadc1248779/small/"/></a></p><p>Extraction of HNO3 by triaryl amine was studied by equilibrating equal volumes of aqueous and organic phases at 25C. At HNO3 concentrations of 2 to 10 N the acid in the organic phase in excess of that equivalent in the amine concentration was proportional to the concentration of HNO3 in the equilibrated aqueous phase. other workers report similar results with nitric acid and tri-n-octyl amine in benzene. Zirconium extractions carried out at 10g Zr/1 with 0.35 M TLA nitrate in toluene showed a fourth power dependence of EZR on HNO (aq) over the range 2 to 10N. Maximum distribution ratios calculated from samarium scouting experiments using amines in kerosene were about 5 x 10(-3) for Primene JMT, 10(-4) for TLA, 10(-5) for S-24, and less than zero for DTDA. Distribution rations in the extractions ranged from ERu = 0.12 for 0.35M TLA shaken with an initially new 2N HNO3 solution for 15 minutes. Data on Zr and Ru standardization in TLA solution for spectrophotometric analyses are included.</p>