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Physics Division Summary Report for April Through June 1957

Description: A laminated scintillator was constructed of Ag activated ZnS in fused B/ sub 2/O/sub 3/. The efficiency of this scintillator was determined and compared with other scintillators. J-values of O for the 41.5 and 44.5 ev and 1 for the 52.6 ev resonances in Pu/sup 239/ were determined. New cross section values are reported for U/sup 235/. Additional attempts to establish fission product mass distribution as a function of neutron energy are reported. A method of analyzing neutron resonances by using… more
Date: August 1, 1957
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radiological Physics Division Semiannual Report for January Through June 1957

Description: ABS>Progress is reported in the following studies: the autoradiographic mapping of the deposition of Ca/sup 45/ in cortical bone in dogs; measurement of fission-product activity present in soil; factors affecting the performance of ionization chambers; calibration tests on the dibutyl phosphate method of isolating Th/sup 228/ from solutions of ashed bone; microradiographic demonstration of changes in mineral density in dog bones; radiometric determination of radon in bone and in the atmosphere;… more
Date: July 1, 1957
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Spallation-Fission Competition in Heaviest Elements; HeliumIon-Induced Reactions in Uranium Isotopes

Description: A radiochemical study of fission and spallation products produced by bombardment of U{sup 233}, U{sup 235}, and U{sup 238} with 18-46 Mev helium ions has been made. As in the case of similar studies using isotopes of plutonium as targets, most of the reaction cross section is taken up by fission. Also, the pronounced increase of the total cross section for ({alpha},xn) reactions with increasing mass number of the target that was observed for plutonium targets is observed for uranium targets.
Date: November 1, 1957
Creator: Vandenbosch, R.; Thomas, T. D.; Vandenbosch, S. E.; Glass, R. A. & Seaborg, G. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geometric Progressions Modulo n as Random Number Generators

Description: Presented at organizational meeting of the Southwestern Section, Assoc. for Computing Machinery, Oct. A geometric progression modulo n is defined, and methods are given for predicting its period. Its usefulness as a random number generator is discussed. (auth)
Date: October 1, 1957
Creator: Morrison, Donald R
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reactor Safety Bibliography. Selected Unclassified References

Description: This is a revision of the Reactor Safety Bibliography prepared for the Reactor Safety Conference held at New York City on Oct. 31, 1957. It is not an exhaustive review of the published material on reactor safety but includes 223 selections from reports and published literature as a guide to some of the more recent and relevant material. (J.E.D.)
Date: May 1, 1957
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Spallation-Fission Competition in Heaviest Elements; TritonProduction

Description: Stacked f o i l s of Au{sup 197}, Th{sup 232}, and U{sup 238} were bombarded, i n a series of experiments, with 48-Mev helium ions, 24-Mev deuterons, and 32-Mev protons. Tritium from each f o i l was collected and then measured by a gas-counting technique. The qualitative r e s u l t s indicate t h a t high-energy t r i t o n s are emitted i n r e l a t i v e l y large abundance from a l l targets and with each of the bombarding p a r t i c l e s . Cross sections f o r t r i t o n production fr… more
Date: March 1, 1957
Creator: Wade, William H.; Gonzalez-Vidal, Jose; Glass, Richard A. & Seaborg, Glenn T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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ON THE DESIGN OF A VERY HIGH-SPEED COMPUTER. Report No. 80

Description: A summary of a study on the feasibility of constructing a computer about a hundred times faster than present computers using presently available components amd techniques is presented. (W. L.H.)
Date: October 1, 1957
Creator: Gillies, D.B.; Meagher, R.E.; Muller, D.E.; McKay, R.W.; Nash, J.P.; Robertson, J.E. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Summary of the Spert-I, -II, and -III reactor facilities

Description: Report containing "[a] brief description and design data summary of each of the SPERT Reactor Facilities is presented. Engineering, operating, and physics data are tabulated for use as basic references" (p. 3)
Date: November 1, 1957
Creator: Montgomery, C. R.; Norberg, J. A. & Wilson, T. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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MODIFICATION OF A DAMPOMETER FOR USE WITH A FREE-OSCILLATION DYNAMIC RIG

Description: Presented at the Eighth Meeting of the Supersonic Wind-Tunnel Assoc., Seattle, Wash. Oct. 1957. The Dampometer represents a harmonically damped oscillation by a rotating vector in such a way that the length of the vector is proportional to the damping. The device was designed for use with a forced oscillation dynamic testing, and its modification for use with a free oscillation rig is described. (T.R.H.)
Date: October 1, 1957
Creator: Maydew, R C
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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COMPARISON OF STAGNATION PRESSURE CONTROL SYSTEMS FOR A 12-INCH BLOWDOWN TRANSONIC TUNNEL

Description: Presented at the Eight Meeting of the Supersonic Wind- Tunnel Association, Seattle, Wash., Oct. 1957. The two control systems are compared for nominal stagnation pressures of 16 and 34 psia. The improved performance of system B has resulted in increased Mach number capability of the tunnel, improved Mach number control during a run, and an increase in the run frequency. (W.L.H.)
Date: October 1, 1957
Creator: Maydew, R C
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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