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Flux in a Rectangular Cavity.

Description: A problem proposed by E. Hart to determine whether there are locally high or low neutron densities at the corners of a cubical cavity in a graphite lattice. To simplify the computations consider an infinite two dimensional lattice with a square cavity that has a point source of neutrons at the center (see Figure 1).
Date: February 4, 1952
Creator: Rosenblum, M.
Item Type: Refine your search to only Report
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Neutron Streaming in a Cylindrical Cavity

Description: The free streaming of neutrons in a cylindrical cavity is investigated. Using experimental data for the flux distribution along the walls, the direct beam hole loss and leakage into the target from the lattice is estimated for the MTA system.
Date: June 4, 1952
Creator: LeLevier, R.
Item Type: Refine your search to only Report
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A Criterion For Vacuum Sparking Designed to Include Both R. F. and D. C.

Description: An empirical relation is presented which represents a boundary between no vacuum sparking and possible vacuum sparking. Metal electrodes and r.f. or d.c. voltages are used. The criterion fits several orders of surface gradient, voltage, gap, and frequency. Current due to field emission is considered necessary for sparking but in addition, energetic particles are required to initiate a cascade process which increases the field emission currents to the point of sparking. An elementary cascade pro… more
Date: September 4, 1953
Creator: Kilpatrick, W. D.
Item Type: Refine your search to only Report
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The Rf System of the Bevatron

Description: Report discussing details of the design for the Bevatron at the University of California Radiation Laboratory. The Bevatron is a "6-billion-electron-volt (Bev) proton synchotron. This device will receive a 10-million-electron-volt (Mev) proton beam from a linear accelerator, and further accelerate a reasonable percentage of these protons, at a nominally constant radius of 600 inches, to a final energy greater than 6 Bev."
Date: June 4, 1954
Creator: Winningstad, C. Norman
Item Type: Refine your search to only Report
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The Design of a Pulsed Magnetic Field Coil for Table Top 1

Description: Abstract: "A cylindrical coil has been designed for pulsed field operation suitable for use in a model thermonuclear reactor. The coil has an eight-inch inside diameter and a length of fifty-one inches. Magnetic mirrors at the ends consist of double-layer solenoids six and one-half inches long designed to slip over the main coil. Subsequent models of this coil have been fabricated which improved the electrical insulation provided by the bonding materials and the mechanical rigidity of the coil.… more
Date: May 4, 1955
Creator: Ford, Franklin C.
Item Type: Refine your search to only Report
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The Probability and Extent of a Fission Product Release From a Power Reactor

Description: Report discussing both the probability of having a reactor accident that would release fission products, as well as the probable extent of the release of the products. This information, along with the contents of the fission products themselves, are based on statistical analysis and educated guesses.
Date: February 4, 1956
Creator: Fleck, Joseph A., Jr.
Item Type: Refine your search to only Report
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Macroscopic Properties of a One-Dimensional Plasma Confined by a Magnetic Field

Description: Abstract: "The quantities of interest in a confined plasma include the electric and magnetic fields, current density, diffusion velocity, temperature, pressure, and particle density. Equations governing the distribution of these seven variables are given in this report and special cases of a one-dimensional steady-state plasma are examined in detail. The solutions are given in graphical form."
Date: September 4, 1956
Creator: Batten, Hugh W. & Woods, Cornelius H.
Item Type: Refine your search to only Report
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Pump-Down Times for the β⁺ Ray and Felix Experiments

Description: "The e-folding time for the free-molecule pump-out time of the vacuum tank used for the β⁺ ray experiment (N¹⁹ at 20°C) is found to be of the order of 46 millisec, and that used for the Felix experiment (D₂ at 20°C) of the order of 12 millisec. In the Felix tank a particle bounces off of the walls on the average about 30 times before escaping, hence a "getter" material coated on the walls of the tube should result in a slightly more rapid pump-out time."
Date: February 4, 1958
Creator: Gibson, Gordon & Newcomb, William A.
Item Type: Refine your search to only Report
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A Systematic Procedure for Preparing Specifications on Electronic Instrumentation and Control Systems

Description: Abstract. A systematic procedure for preparing purchase specification on electronic instrumentation or control systems has been developed. This procedure results in preparation of specifications which: 1) make it possible to find any particular specification requirement quickly; and 2) insure that no important requirement has been omitted. Details of this systematic specification preparing procedure presented.
Date: February 4, 1960
Creator: Olken, Hyman
Item Type: Refine your search to only Report
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Photoproduction Of Neutral Pions As A Function Of Mass Number

Description: The relative yield of neutral photopions from various elements was determined as a function of the quantum limit energy of the Berkeley synchrotron. Single decay photons from neutral pions were observed at 45, 90, and 135 deg to the incident bremsstrahlung in the laboratory system. Mean free paths for neutral pions in nuclear matter were obtained, an optical model prediction of the photopion yields based upon pion-nucleus scattering data was confirmed, and the presence of coherent pion producti… more
Date: November 4, 1960
Creator: Anderson, John D.; Goodwin, Lester K. & Kenney, Robert W.
Item Type: Refine your search to only Report
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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
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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
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A Pulsed Nanosecond Light Source

Description: A system for scintillations from nuclear events has been developed and is presently in use at the Lawrence Radiation Laboratory. This paper primarily describes the pulsed light source used to simulate nuclear events; it also describes the necessary nanosecond pulse techniques to measure the light source parameters and to operate large numbers of lamps. Considerations concerning distribution networks are shown. Use of the light source as a spark gap trigger is also discussed.
Date: August 4, 1961
Creator: Innes, Thomas G. & Kerns, Quentin A.
Item Type: Refine your search to only Report
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