586 Matching Results

Search Results

Results: 1 - 24 next
open access

THE AVERAGE ENERGY AND ANGULAR MOMENTUM REMOVED FROM Dy COMPOUND NUCLEI BY NEUTRONS AND PHOTONS

Description: Excitation functions are presented for many heavy-ioninduced (HI) reactions that produce Dy/sup 149/, Dy/sup 150/, and Dy/sup 151/. Projectiles were C/sup 12/, N/sup 14/, N/sup 16/, O/sup 16, O/sup 18/, F/sup 1 9/, and Ne/sup 20/ of 4 to 10.4 Mev per amu. The reactions studied are all of the type (HI,xn), where x ranges from 3 to 9. A large fraction of the total reaction cross section is accounted for by these (HI,xn) reactions --9/10 at approximately 45 Mev to 1/2 at approximately 105 Mev. An … more
Date: January 1, 1963
Creator: Alexander, John M. & Simonoff, Gabriel N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Nucleon-Meson Cascade Calculations: The Star Density Produced by a 24-Gev Proton Beam in Heavy Concrete

Description: The nuclear star density produced by a 24-Bev proton beam in a material having approximately the properties of heavy concrete is calculated. A comparison is made with experimental measurements made at CERN; but, since the quantity that can be calculated is not the same as that measured, no firm conclusions can be drawn. Proton, neutron, pion, and muon intensities are plotted vs. distance as are star densities. (auth)
Date: January 21, 1963
Creator: Alsmiller, R. G., Jr. & Murphy, J. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Space Vehicle Shielding Studies Calculations of the Attenuation of a Model Solar Flare and Monoenergetic Proton Beams by Aluminum Shields

Description: Using the straight-ahead approximation, nucleon-meson cascade calculations have been carried out for a typical proton flare spectrum incident on a shield and for approximately monoenergetic incident proton beams. The shield material considered has approximately the properties of Al. The results from the monoenergetic beams may be used to obtain shielding information for any incident proton spectrum. (auth)
Date: January 23, 1963
Creator: Alsmiller, R. G., Jr. & Murphy, J. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Southwest Retort, Volume 15, Number 5, January 1963

Description: This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community. Published monthly during long academic semesters.
Date: January 1963
Creator: American Chemical Society. Dallas/Fort Worth Section.
Item Type: Refine your search to only Journal/Magazine/Newsletter
Partner: UNT Libraries
open access

Experiments on a Large Volume Electron-Cyclotron Heated Plasma

Description: As part of the thermonuclear effort at Oak Ridge National Laboratory, large volume high-beta plasmas have recently been produced by microwave power at the electron-cyclotron frequency. The original work was done with 13-cm microwave radiation in a magnetic mirror and was reported at Salzburg. Since that time, higher frequency and higher power radiation has been used in a succession of experiments. The current experiments involve heating a plasma in the EPA Facility which has a 3:1 magnetic mirr… more
Date: January 1963
Creator: Ard, W. B.; Becker, M. C.; Dandl, R. A.; Eason, H. O.; England, A. C. (Alan Coulter), 1932- & Haas, G. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Energy Deposition by Fast Neutrons. [Part] 2. Yield of the Fricke Dosimeter at 14.6 Mev

Description: A measurement of the yield of the aerated, ferrous sulfate-sulfuric acid (Fricke) dosimeter for 14.6-Mev neutrons gave a value of GF /sub Fe/sup +5/= 11.5 plus or minus 1.8. G/sub Fe/ number of ferric ions produced per 100 ev deposited. The determination combined an analysis of the energy deposit by scattering and charged particle reactions with a determination of the neutron flux by two independent means: a long counter'' method and an activation technique. The r sult is in reasonabl… more
Date: January 1, 1963
Creator: Axtmann, R. C. & Licari, J. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluation of a Reduced Pressure Backflow Preventer Using Activation Analysis

Description: Despite its advantages of economy and convenience, the reduced-pressure- principle backflow preventer was oniy partialiy accepted as a substitutr for air- gap separation in preventing pollution of potable winter. To evaluate the protection provided by a reduced pressure principle backflow preventer, a unit was tested under the following static conditions; ionic diffusion, lower pressure on the supply side than on the discharge side, vacuum on the supply side, water hammer on the supply side, an… more
Date: January 1, 1963
Creator: Baird, Jr., J. N.; Sanford, W. R. & Cristy, G. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

On the Uniqueness of the Partial Wave Amplitudes

Description: It is assumed that all but a finite number N of partial waves associated with a two-body scattering amplitude are given, and the ambiguities associated with the remaining N waves are examined. It is proved that the N waves are uniquely determined except possibly for an additive s-wave constant if the scattering amplitude has crossing symmetry or if, in one of the crossed channels, there exists an energy region where the scattering is purely elastic. For the former case, the precise nature of th… more
Date: January 1, 1963
Creator: Balachandran, A. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

NEUTRON EXPERIMENTS WITH A TANDEM ACCELERATOR

Description: l963. The Wisconsin tandem accelerator is used part of the time for experiments in neutron physics. In these experiments the properties of neutrons from charged-particle reactions as well as the interaction of neutrons with nuclei are studied. Some of the techniques used and some of the results obtained are described. (auth)
Date: January 1, 1963
Creator: Barschall, H H
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Studies of the Rapid Beam Ejector at the Cosmotron

Description: Extraction of the external beam of the cosmotron with maximum efficiency and minimum duration for measurements of the magnetic moment of the lambda hyperon requires addition of a rapid beam ejector (RBE). Early experiments with the RBE give lower ejection efficiency than the standard ejection system. Reconstruction of the RBE with lengthening of the rise time of the system gives improved values. Computer studies that involve solving the equation of motion for the radial betatron oscillation wit… more
Date: January 16, 1963
Creator: Barton, M. Q.; Kernan, W.; Novey, T.; Warshaw, S. & Wattenberg, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Resonance Integrals and Self-Shielding Factors for Detector Foils

Description: >Effective activation resonance integrals for thin and thick foils in an isotropic neutron flux were measured by a cadmium ratio method. Gold was used as a standard. Values obtained for dilute resonance integrals in barns, not including 1/v capture, were: Au/sup 197/, 1390 plus or minus 40 (Reference); U/ sup 238/ capture, 280 plus or minus 10; Cu/sup 63/, 3.17 plus or minus 0.18; Cu/sup 65/, 1.39 plus or minus 0.22; Mo/sup 98/, 9.9 plus or minus 1.1; Mo/sup 100/, 4.06 plus or minus 0.23; W/… more
Date: January 1, 1963
Creator: Baumann, N. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Post-irradiation data on fuel elements from KER Loop 4

Description: Fourteen NAE1 fuel elements were discharged from KER Loop-4, after irradiation to an average exposure of 1250 MWD, at prototype N-Reactor coolant temperature and pressure. The elements were disassembled and measured in the KE fuel examination facility. This report includes all measurements, except the profilometer data.
Date: January 10, 1963
Creator: Bennett, E. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Engineering Report on the Design of the Pratt & Whitney Aircraft Forced Convection Alkali Metal Vaporization Condensation Heat Transfer Rig

Description: Summary. A test rig has been designed to obtain basic two phase forced convection liquid metal heat transfer and pressure drop data for use in the design of liquid metal boilers. This engineering report includes background of the boiling problem, partial summary of work done by other investigators, the object, scope, engineering, and operations of this test rig, and a summary of reproducibility tests conducted in a water back-up rig.
Date: January 18, 1963
Creator: Bernstein, E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen