Technical Report Archive & Image Library (TRAIL) - 33 Matching Results

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Absolute Cross Sections of the Reaction P + P - w+ + d

Description: Absolute differential cross sections for the reaction p + p - w+ + d were obtained by detecting meson-deuteron coincidences produced by passing the 340-Mev external proton beam of the Berkeley synchro-cyclotron through a liquid hydrogen target.
Date: April 23, 1953
Creator: Crawford, Frank Stevens, Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Angular Distribution of the Reaction p + p--d + w+ at 338 Mev

Description: The angular distribution of the reaction p + p--w+ + d has been measured with the meson and deuteron detected in coincidence. Measurements were made at 30' and 90' in the center of mass system for an incident proton energy of 338 Mev. Similar measurements were made at 30', 60' and 90' for 332 Mev protons.
Date: April 1953
Creator: Stevenson, M. Lynn
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Calculation of Explosion-Produced Craters

Description: In this study, a physical-numerical model is used to investigate processes important for cratering, or excavation, physics for high-explosive sources in desert alluvium. High explosives do not vaporize much of the geological environment surrounding the initial cavity containing the explosive. Thus, a relatively simple, and in some cases a well-known, equation of state exists for the high-explosive cavity gas for pressure greater than 1 atmosphere. However, nuclear explosives are known to vapori… more
Date: April 24, 1964
Creator: Knox, Joseph B. & Terhune, R. W. (Robert William)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Calculation Of The Shock Wave From An Underground Nuclear Explosion In Granite

Description: In any underground nuclear explosion, the shock front that propagates from the shot point carries with it energy from the explosion, and distributes this energy by doing work on the surrounding material. In the process, the material undergoes changes in both its physical and mechanical states. If enough energy is deposited in the material, it will vaporize or melt thus changing its physical state, or cause it to crush or crack. During the past few years, special computer codes have been develop… more
Date: April 24, 1964
Creator: Butkovich, Theodore R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Characteristics Of Radioactivity Produced By Nuclear Explosives

Description: The production of energy by nuclear reactions results in the production of radioactive nuclei. Therefore, in considering the possible utilization of nuclear explosives for peaceful purposes it is necessary to be able to predict the expected activities, their amounts, and dispositions. The amounts and kinds of radioactivities produced by detonation of a nuclear explosive are dependent upon the specific design of the explosive. The behavior and ultimate fate of the activities produced by the expl… more
Date: April 24, 1964
Creator: Miskel, John A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Chemistry Division Quarterly Report: December, 1952, January, February, 1953 - The Solubility of Hydrogen and Deuterium in Various Solvents

Description: In the past year, exploratory data have been taken to determine the relative solubilities of hydrogen and deuterium in various solvents in the vicinity of room temperature and atmospheric pressure. This investigation is one phase of a program to determine the feasibility of separating deuterium from hydrogen by means of rectified absorption.
Date: April 13, 1953
Creator: Cook, M. & Hanson, D. N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Contained Nuclear Detonations in Four Media - Geological Factors in Cavity and Chimney Formation

Description: Recent underground nuclear tests conducted by the U.S. Atomic Energy Commission have yielded data on the effects of contained nuclear explosions in four rock mediums: tuff, alluvium, rock salt, and granite. This report presents and compares data obtained primarily through exploratory mining and drilling into the postshot environment of 35 such events.
Date: April 24, 1964
Creator: Boardman, Charles R.; Rabb, David D. & McArthur, Richard D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Cross Section For Compound-Nucleus Formation In Heavy-Ion-Induced Reactions

Description: With the increasing availability of accelerators capable of producing beams of heavy ions it has become useful to know the cross section for a heavy ion to form a compound nucleus by interaction with a target nucleus. The results of calculations based on two simple models are presented here in order to give some idea of the magnitude of this cross section as a function of the energy of the bombarding particle.
Date: April 1959
Creator: Thomas, T. Darrah
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Crystal Structure Of B 'Cu0.75Al0.25

Description: The problem of crystal structure of the martensitic B1 phase of the eutectic alloy in the Cu-Al system still requires a more accurate clarification (Hun ger and Dienst 1960, Tarora 1949). Martensitic phases in general are formed through small thrust (shear) deformations of the original lattice. On this basis the results of Hunger and Dienst (1960) are doubtful, since the lattice constants found by them have required a considerable reclassification. From the known lattice constants of the B1 pha… more
Date: April 20, 1962
Creator: Thomas, G. & Huffstutler, M.C., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Cyclotrons

Description: The structure and operation of cyclotrons are discussed. Factors limiting cyclotron size and energy are given. Improvements to the basic continuous-wave cyclotron are described, including frequency modulation, strong focusing, and variable-energy facilities.
Date: April 4, 1961
Creator: Smith, Bob H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Deposition Of Thermal Energy By Nuclear Explosives

Description: A fraction of the energy released by the underground detonation of nuclear explosives is locally deposited as residual thermal energy. An accurate prediction of this usable fraction of the energy released is necessary to evaluate the feasibility of several of the proposed projects in the Plowshare Program. This paper will present a summary of the available data on residual thermal energy from nuclear detonations in three different geological media: tuff, halite, and granodiorite.
Date: April 6, 1964
Creator: Heckman, Richard A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Effects Of Seismic Waves On Structures And Other Facilities

Description: The effects of explosion-induced ground motion must be evaluated in planning and executing any nuclear excavation project. For some projects ground use intensity may dictate the use of less-than-optimum yields to minimize damaging effects. In remote areas, weighing the alternatives of outright purchase of some property or use of smaller yields may be required. The cost of indemnifying owners against damage must be considered in any case. Discussions of the effects of ground motion on three broa… more
Date: April 24, 1964
Creator: Cauthen, Lewis J., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Electrical Limitations To Energy Resolution In Semiconductor Particle Detectors

Description: Based on the assumption that the noise contribution of a semiconductor detector is due solely to the bulk properties of the semiconductor, equations are presented which indicate the theoretical limits of noise in detector-amplifier combinations. These equations show that an optimum amplifier time constant and detector bias voltage exist for which condition the minimum noise is independent of the semiconductor resistivity. The optimum performance of a detector-amplifier system is shown to depend… more
Date: April 5, 1961
Creator: Hansen, William L. & Goulding, Frederick S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Equation Of State Of PBX 9404 And LX04-01

Description: The Chapman-Jouguet pressure and equation of state of the high explosives PBX 9404 and LX04-01 have been experimentally derived. To assure a strictly one-dimensional geometry, spheres of high explosives were used. Experimental measurements of the radius-time history of material accelerated by the explosive gases were used in conjunction with finite difference calculations of the hydrodynamic equations to obtain some previous inaccessible data on high explosives.
Date: April 27, 1964
Creator: Wilkins, Mark L.; Squier, Bailey & Halperin, Bertram
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Evidence For a T = 0 Resonance in the Z[ ] System

Description: In previous letters we have reported a Av resonance, called Y*1, observed through the study of the interaction of 1.15-Bev/c K* mesons in hydrogen in the Lawrence Radiation Laboratory 15-in. bubble chamber. We now wish to report the results of the study of the three reactions [formula](1), [formula](2) and [formula](3).
Date: April 28, 1961
Creator: Alston, Margaret H.; Alvarez, Luis W., 1911-1988; Eberhard, Phillippe; Good, Myron L.; Graziano, William; Ticho, Harold K., 1921-2020 et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Exponential Signal Rate-Of-Rise Measurement Instrument

Description: The increasing exponential function e-at [a > 0] characterizes such natural events as gas discharges, neutron multiplication, and the transistor avalanche phenomenon. This report describes an instrument for measuring the rate of rise, a, of an increasing electrical exponential signal.
Date: April 6, 1964
Creator: Holladay, Gale; Behrin, Ervin & Campbell, Donald
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Heavy Isotope Production By Nuclear Devices

Description: In November 1952 an event took place which was to have a profound effect on political alignments of the world. This event was the detonation of "Mike", the first large thermonuclear device. The political implications of this experiment overshadowed what has come to be a major advance in the development of scientific tools; the experimentally verified, extremely high thermal neutron flux observed in Mike. Subsequent to this observation, the Atomic Energy Commission established a study program to… more
Date: April 24, 1964
Creator: Dorn, David W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Instrumentation Of Multi-Channel Counting Experiments

Description: Recent experience in instrumentation of several nuclear-physics experiments has demonstrated the feasibility of automating the data-acquisition phases of the experiment. Electronic circuits are employed wherever the rate of data flow would be slowed by the use of human operations. Information is selected, temporarily stored, and then recorded in a form suitable for immediate entry into a computer. Experimenters thus freed from the tedious aspects of data collection can devote their time to stud… more
Date: April 4, 1961
Creator: Kirsten, Frederick A. & Mack, Dick A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An Integral Design Technique for Wideband Multistage Transistor Amplifiers

Description: Presented herein is a philosophy for designing wideband multistage transistor amplifiers. The amplifier is visualized as an integral unit, the interstage networks constituting the elements of the amplifier unit. By designing the amplifier as a unit and adjusting the overall response (gain and bandwidth) with the interstage time constants, an increase in gain-bandwidth product is realized over the iteratively designed amplifiers. The resulting increase in gain-bandwidth product results from abse… more
Date: April 27, 1962
Creator: Scott, Larry
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Martensite In CU-12.0% AL Alloy

Description: Thin foils suitable for transmission electron microscopy have been prepared from bulk specimens of Cu-12.0% Al alloy quenched from 800' C to produce martensite. The martensitic structure consists of long lenticular plates which are twinned on 20-50A scale. The twin planes in the martensite are shown to be [formula]. There is evidence that this structure is ordered as expected for a transformation from an ordered parent lattice. Experiments using a high temperature stage show that the decomposit… more
Date: April 1961
Creator: Thomas, G. & Huffstutler, M.C., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Measurement Of Average Neutron Energies For (o, n) Neutron Sources

Description: A method is presented for measuring the average energy of the neutrons from a source. The attenuation of the neutrons by polyethylene is measured by the use of a long counter in good geometry. The attenuation length is a sensitive function of the neutron energy. The average neutron energies from several (o, n) sources have been measured and agree well with values obtained by other techniques.
Date: April 1, 1959
Creator: Hess, Wilmot N. & Smith, Alan R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Measuring Rotary Table Angle Error

Description: The angle errors of a rotary table can be accurately measured by stepping off the angles with an optical caliper and computing table error from (1) the error readings at each angle measured and (2) the cumulative caliper error that will be evident when the circle is closed at 360', eliminating the necessity of adjusting the caliper to the exact setting.
Date: April 27, 1964
Creator: Bryan, J. & Mohl, O.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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