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Chemistry Division Quarterly Report: September, October, November, 1952

Description: Quarterly progress report for the Chemistry Division of the University of California Radiation Laboratory: nuclear chemistry, bio-organic chemistry, metals and high temperature thermodynamics, basic chemistry, and chemical engineering.
Date: December 31, 1952
Creator: University of California Radiation Laboratory
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Characteristics of Bismuth Fission Induced by 340 Mev Protons

Description: Bismuth metal was irradiated with 340 Mev protons in the circulating beam of the 184-inch Berkeley cyclotron. Nuclides formed as fission products during the course of the bombardment were separated and studied through the use of radiochemical techniques.
Date: January 1953
Creator: Biller, William Frederick
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Total Neutron Yield From Targets Bombarded by Deuterons and Protons

Description: The total number of neutrons emitted from various targets bombarded by high energy deuterons and protons was measured by using a solution of MnSO<sub>4 to thermalize and capture the neutrons. The methods of monitoring the number of particles striking the target and of calibrating the neutron detecxting apparatus are discussed in detail. Deuterons of energies to 230 Mev and protons of energies to 345 Mev were used. Targets ranging from lithium to uranium were used and were backed by secondary ta… more
Date: January 7, 1953
Creator: Crandall, Walter E. & Millburn, George P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Mathematical Theory of the Lethal Action of Radiation on Yeast Cells

Description: The main part of this thesis is devoted to the derivation and study of formulas for the probability of survival of the haploid and diploid yeast cell, based on models proposed by Zirkle and Tobias. Some properties of so-called completely monotonic functions are developed, and the results are applied to the investigation of some of the more complicated formulas. Finally the theoretical expressions are compared with the experimental data obtained by Tobias.
Date: December 11, 1952
Creator: Wijsman, Robert Arthur
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Spark Damage and High Voltage Breakdown of Metals in Vacuum at 14 Megacycles

Description: The work reported here is a continuation of that reported in UCRL-1962. Approximate breakdown voltages and spark damage estimates have been made for the metals Ag, Ti, Aluminum Alloy 52-SO, Stainless Steel 316 and various combinations of Inconel and Cu.
Date: December 15, 1952
Creator: Byerly, Paul R., Jr.; Chupp, Warren W. & Heard, Harry G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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MTA, A-12 Development, Drift Tubes - RF and Beam Geometry. Comparison of A-12 to A-24

Description: The final r.f. characteristics of A-12 are shown. The mechanical features are available in UCRL-1859. If A-12 were to be changed to 24.2 mm rather than 12.1 mm, keeping the same length and the same constant average coil gradient of 0.375 MV/ft., the characteristics of such an A-24 can be obtained from the attached curves.
Date: November 17, 1952
Creator: Schelberg, A. & Kitchen, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Summary of Research Progress Meetings of October2 and October 9, 1952

Description: Summary of research progress meetings of October 2 and October 9, 1952: High speed high vacuum ion pump, High energy ion irradiation, Space charge accelerator for protons, Availability of the [ ] meson beam at the cyclatron, Effect of chemical structure on stopping powers for high energy protons.
Date: October 22, 1952
Creator: Shewchuck, Sergey
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Calculation of Geometrical Efficiency of Counters

Description: Let F be the flux of radiation going from a sample of radius R2 to a counter of radius B1 then the emitted intensity of radiation per unit solid angle. Then the flux between two elements of area do1 and do2 will be given by [equation] since [equation] and [equation]. Calculations and equations follow.
Date: August 8, 1952
Creator: Henrich, Louis R. (Louis Richard), 1908-
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Three Lectures On Controlled Thermonuclear Power Production

Description: This report was written from the notes used by Dr. York in delivering his three lectures on considerations pertinent to the problem of utilizing controlled thermonuclear reactions for the production of power. The first lecture discussed fundamental properties of the DD and DT reactions and the reacting substances. The second lecture described the stellarator, a proposed machine for the controlled production of power from the above reactions. The third lecture described the pinch effect and cons… more
Date: August 29, 1952
Creator: York, Herbert F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Sparking and X-Rays in a Mercury Pumped Vacuum System (Excerpt From Quarterly Report for March, April, May, 1952 - Linac Group - UCRL-1903)

Description: Sparking: The most obvious conclusion about 200 m.c. sparking is that it follows strictly surface gradient and does not depend upon total voltage. In order to arrive at this conclusion, a quantitative means for measuring the probability of sparking had to be constructed, since it was clearly evident that the d.c. notion of sparking was inadequate.
Date: August 1952
Creator: Kilpatrick, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Full Scale Drift Tube Magnet Report

Description: Measurements were made on the full scale drift tube magnets to check values predicted from the model magnets measurements. These investigations were carried out by the magnetic measurements group.
Date: July 1952
Creator: Sewell, D. & Parmentier, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Cloverleaf Cyclotron Three Phase Radiofrequency System

Description: The geometry of the magnetic pole structure in the cloverleaf cyclotron suggests the use of three dees excited by three phase rf placed in the valleys out of the way of the beam. Experience with the model machines indicates that it is desirable to be able to vary the phase angles between the three dee voltages through 30 or 40 degrees and to be able to maintain them at any given value within plus or minus one degree. It is desirable, also, to be able to vary the phase angle independently of the… more
Date: September 9, 1952
Creator: Smith, Bob H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Theoretical Considerations on Cell Shape, Convection, and an Area Anomaly Pertinent to Developing a Moving Boundary Theory for Ultracentrifugation

Description: The intuitive concept that a sector shaped centrifuge cell is free from convection is criticized. Not only is a form of convection present for a single sedimenting species, but a more insidious type occurs in a mixture having an appreciable Johnston-Ogston effect. Rather than striving for convection-free sedimentation, the proposal is to utilize if possible an apparently harmless type of convection occurring in a very thin annulus in order to avoid the convection extending between boundaries in… more
Date: July 8, 1952
Creator: Trautman, Rodes
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Considerations on the Effect of Beam-Dee Coupling in a Cyclotron RF System

Description: Analysis of the problem of accelerating ions in a Thomas cyclotron has been confined almost entirely to the integration of various equations of motion (for single particles) for which a complete field description is necessary. In contrast, the problem of principal interest to rf system engineers concerns the gross transfer of electrical energy from an rf generator into an accelerated beam.
Date: July 14, 1952
Creator: Wouters, L. F. (Louis Francis), 1921-
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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The Tides: A Dynamic Explanation Based Upon Fundamental Physical Concepts

Description: A model is proposed to directly relate observed tidal action with orbital movements of the moon and the earth. The basic model consists of a unit mass acting as a free point on the rotating earth's surface and being carried into a field gradient. The field is such as to cause the free point to "fall" along the surface, gain a velocity with respect to the earth's surface, and thus produce a tidal interaction at coastal barriers. Gyroscopic and resonant oscillatory current effects are not treated. more
Date: January 1962
Creator: Pratt, Ira P., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Elastic Scattering of 31-Mev He3 Ions From Several Elements

Description: The absolute differential cross sections for elastic scattering of 31-Mev He3 ions on Be, Al, Cu, Sn(nat), Sn120, and Bi have been measured in the angular range of approximately 10 to 120 deg in the center-of-mass system. Thin self-supporting foil targets were chosen to span the parameter A 1/3, where A is the target mass number. The first excited states of the isotopes of the above elements had sufficient energy separation from the ground state to enable elastic scattering to be resolved from … more
Date: December 31, 1961
Creator: Igo, George; Markowitz, Samuel S. & Vidal, Jose G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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