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IBM 1401 Computer Produced and Maintained Library Circulation Records

Description: Report issued by the University of California Lawrence Radiation Laboratory discussing a method of updating library circulation records on an IBM 1401 computer. The report describes the methods of generating and updating the records using transaction cards to create computer tapes that are sorted and updated to prepare current reports of circulation information.
Date: January 23, 1964
Creator: Kennedy, James H.
open access

Microwave Diagnostic Systems and Techniques for Use in Controlled Fusion Research

Description: Abstract: "Microwaves have been used for several years at Lawrence Radiation Laboratory to study conditions in the magnetically contained plasmas of controlled fusion research. There are two basic microwave techniques. One gives information on electron density and distribution in the plasma, the other provides data on electron temperature. This paper briefly summarizes the established techniques, discusses engineering requirements and limitations, and describes some further applications of micr… more
Date: June 1960
Creator: Bunn, Harlin L.
open access

Discussion on Optimization of Large Oil-Pumped Ultra-High Vacuum Systems

Description: Abstract: "Discussion is directed toward eventual optimization of the largest diffusion-pump systems. Less than 100 diffusion pump fluid molecules per cm 2/sec are possible to detect using an accumulation method. Optimization discussed demands highest possible system speed compatible with the above contamination rate. Bakeable oil diffusion pump systems, with equal orifice valve-tap units, without conventional baffling, permit theoretical through-put speeds up to 0.3 of the system orifice. The … more
Date: September 12, 1960
Creator: Milleron, Norman & Levenson, L. L.
open access

Scintillation Counter [gamma]-Spectra Unfolding Code for the IBM-650 Computer

Description: Abstract. An IBM-650 computer code for the detailed unfolding of [gamma]-ray spectra obtained from NaI scintillation counters has been developed. The procedure is set up to remove analyzer scale dependence and to largely remove energy dependences. Computer time is about 1 minute per [gamma]-ray.
Date: February 17, 1960
Creator: West, Harry I., Jr. & Johnston, Bradley.
open access

Non-military Uses of Nuclear Explosions

Description: Introduction. With the development of fission and subsequently of thermonuclear explosives, a very large source of cheap energy has become available. The problem of using this energy for peaceful purposes safely and economically presents itself as one of the most interesting and important of our time. In explosions the energy is released very suddenly. Conversion of this sudden release of energy at extremely high temperature and pressure into the form of useful work, either mechanical or chemic… more
Date: January 6, 1960
Creator: Brown, Harold
open access

Seismic Decoupling for Explosions in Spherical Cavities

Description: Abstract. A series of paired explosions in a salt mine near Winnfield, Louisiana, has been conducted to test a theory by Dr. A. L. Latter concerning seismic decoupling by underground cavities. The theory predicted a decoupling of about 100. Free-field and surface measurements from an explosion in either a 6-ft- or a 15-ft-radius spherical cavity were compared with similar measurements from a completely tamped explosion. Shot sixes were from a 10 lb up to a few tons. Surface measurements were ma… more
Date: September 30, 1960
Creator: Adams, William M. & Carder, Dean S.
open access

Polarization in Pion-Nucleon Scattering and the Second and Third Pion-Nucleon Resonances

Description: Abstract. The polarization of the recoil nucleon in pion-nucleon scattering is studied from the point of view of providing a means of distinguishing among the various angular momentum assignments proposed for the higher pion-nucleon resonances. It is shown that polarization in this reaction is just as useful a guide as polarization in photoproduction. In particular, a measurement of the polarization at and in the neighborhood of 90 degrees in the energy range between the first and third resonan… more
Date: January 1960
Creator: Moravcsik, Michael J.
open access

Convergence of the Quasi-chemical Method for the Ising Square Lattice

Description: The Ising model, a system of atoms arranged on a lattice with simple nearest neighbor interactions, provides a more or less realistic description of many physical systems. The state of each atom is specified by a two-valued variable, which may be identified with: (1) its spin (up or down), if one wishes to describe a magnetic system; (2) its identity (A or B), if one wishes to describe a a mixture of two kinds of atoms; or (3) its presence or absence (atom or hole), if one is dealing with a lat… more
Date: January 1960
Creator: Brush, Stephen G.
open access

Image Converter Tubes : Manufacturer's Data

Description: Introduction. A survey has been made of the image converter tubes generally available in this country and Europe. Ultraviolet and infrared types using photocathodes were included, buy x-ray and solid state types were omitted. Since this is the first time that this list has been compiled, it may have errors and omissions. The author will appreciate any corrections or suggestions, and it is hoped that revised lists will be published from time to time.
Date: February 1960
Creator: Inami, F. K.
open access

A New Liquid Explosive, NTN

Description: Abstract. The preparation and properties of a new explosive, liquid over the range -65 degrees F to +165 degrees F, are presented. This explosive, called NTN, is a 5/1/1 mole ration of nitromethane, tetranitromethane, 1 -nitropropane. The sensitivity and stability of NTN meet military requirements.
Date: January 28, 1960
Creator: Von Egidy, Albert.; Finger, Milton.; Hill, Marion.; Ornellas, Donald L.; Ellison, Edward. & Kury, John.
open access

Transient Thermal Stress in Tubular Reactor Elements

Description: In this paper, a theoretical solution is developed for the transient thermal stress distribution in a reactor fuel tube of circular cross sections with spatially uniform internal power generation and forced convective heat transfer at the inner surface of the tube. Solution of the equation of heat conduction is done my means of a Laplace transform with subsequent application of the inversion integral to arrive at a final expression for the transient temperature distribution. The solution is of … more
Date: September 1960
Creator: Deverall, LaMar Ivan
open access

Tory II-A Instrumentation System : Brief Description

Description: Abstract. The Tory II-A reactor is a small, air cooled, high power-density reactor which is to operate at quite high temperatures. Design of the reactor is essentially complete. First operation is scheduled for late 1960 at the Nevada Test Site of the Atomic Energy Commission. Since the reactor is unshielded, the control room which houses the recording and indicting equipment is located approximately two miles from the test bunker. Signals from reactor and facility transducers are amplified in … more
Date: March 3, 1960
Creator: Barnett, Charles S.; McDonald, Henry C. & Uthe, Paul M.
open access

A Plasma Cyclotron

Description: In a previous report the adaptation of Stix's ion-cyclotron-wave-heating scheme to the mirror geometry was suggested. An experiment along these lines has been conducted for the past year by E. Chambers, using a tubular P.I.G discharge to provide the basic plasma. The Chambers experiment has been eminently successful in demonstrating the transfer of rf power along the P.I.G. (as along a co-axial conductor), and the resultant acceleration of ions. The power transfer is evident from the predominan… more
Date: April 6, 1960
Creator: Furth, Harold P.
open access

Neutron Diffusion Theory Programs and Their Application to Simple Critical Systems

Description: Introduction. The Lawrence Radiation Laboratory of the University of California has developed a series of reactor neutronic programs for an IBM 709 Data Processing System.. This paper presents a brief outline of these codes and includes the results of one- and two-dimensional diffusion calculations used to interpret data from a series of enriched-uranium beryllium-oxide moderated critical measurements. These were performed for the specific purpose of evaluating the computer programs. The time-i… more
Date: March 1960
Creator: Stone, Stuart P. & Lingenfelter, Richard E.
open access

Monte Carlo Schemes for Neutron Migration Using Importance Sampling and Splitting

Description: Abstract. Monte Carlo methods using importance sampling and splitting are proposed for estimating the effectiveness of neutron shields. As usual, the aim is to increase the number of particles that go through or around the shield, this increase being compensated by a decrease in the weights of these particles. With suitable modifications, the ideas are applicable to to other Monte Carlo problems. One way of using splitting and Russian roulette is to require that the weight of each particle be a… more
Date: 1960
Creator: Kaplan, Edward L.
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