5,454 Matching Results

Search Results

Advanced search parameters have been applied.

The Investigation of Fundamental Interactions with Cold Neutrons

Description: Abstract: The National Bureau of Standards is establishing a National Cold Neutron Facility at its 20 MW reactor located in Gaithersburg, Maryland. In order to provide guidance in the development of research plans for the Facility, the Department of Energy and NBS sponsored, on November 14-15, 1985, a workshop on the Investigation of Fundamental Interactions with Cold Neutrons. The 25 papers presented at the workshop are printed in the proceedings.
Date: February 1986
Creator: Greene, G. L.
Partner: UNT Libraries Government Documents Department


Description: Seminar talks and special reports presented by the Berkeley summer study group are compiled. Included in the compilation are 24 seminar talks, 10 reports, a summary of theoretical conclusions, and comments on experimental questions. Separate abstracts have been prepared for 18 seminar talks and all of the reports. Five seminar talks have been abstracted previously in NSA. (M.P.G.)
Date: October 31, 1963
Partner: UNT Libraries Government Documents Department

Simple Critical Mass Calculations

Description: Abstract: "This report gives (1) a simple empirical equation which should yield critical mass values of homogeneous, partially moderated, unreflected spherical assemblies with an accuracy of a factor two, and (2) critical mass estimates obtained from from (1) for Oy-C-H and Oy-W-CH2 systems."
Date: October 1955
Creator: Hansen, Gordon Edward
Partner: UNT Libraries Government Documents Department

Development of Auxiliary Cyclotron Equipment for Using Tritium as Bombarding Particles in a Cyclotron

Description: "A circulating system for radioactive tritium was constructed, assembled, and tested. The results showed that the pumping speed of the system was too low for use. Therefore, bombardments in the cyclotron with tritium particles would not be made during the course of this project" (p. 1).
Date: December 1951
Creator: Kundu, D. N.; Boyle, F. G. & Pool, M. L.
Partner: UNT Libraries Government Documents Department

Theory of Alpha Decay

Description: The relationship between nuclear reactions and nuclear decay derived by F. T. Smith is presented and illustrated by a simple example. (auth)
Date: August 1, 1962
Creator: Tobocman, W.
Partner: UNT Libraries Government Documents Department


Description: Summaries are given of the activities of the Nuclear Chemistry Division during 1960, in radioactivity and nuclear spectroscopy, fission, nuclear reactions, physical chemistry, instrumentation, and chemical engineering. Included are abstracts of graduate theses awarded during 196O for work conducted in the Division. (B.O.G.)
Date: February 1, 1961
Partner: UNT Libraries Government Documents Department

Nuclear Reactions on the Palladium Isotopes

Description: The problem of interest in this investigation was to determine the cross sections of five nuclear reactions which occur when irradiating natural palladium with neutrons which have energy values of 15.1, 15.9, and 16.3 MeV. The cross sections were measured relative to a copper monitor which was "sandwitched" in with the palladium target.
Date: December 1970
Creator: White, Ronald Lee
Partner: UNT Libraries

International Conference on Fundamental Aspects of Weak Interactions: Held at Brookhavan National Laboratory, September 9-11, 1963

Description: Report issued by the Brookhaven National Laboratory discussing papers presented at the International Conference on Fundamental Aspects of Weak Interactions. Each paper that was presented at the conference is included. This report includes tables, illustrations, and photographs.
Date: April 1964
Creator: Brookhaven National Laboratory
Partner: UNT Libraries Government Documents Department

Studies of fluctuation processes in nuclear collisions. Progress report, March 1, 1993--April 30, 1994

Description: This report summarizes the progress on grant No.FG05-89ER40530 during the period March 1, 1993 to April 30, 1994. By extending our previous work on the fluid dynamical treatment of the nuclear collective motion, we deduced from the Boltzmann-Langevin (BL) model a set of transport equations for N collective variables and calculated the associated transport coefficients. Work has also continued on investigating the relation between the BUU model and the BL model for the average evolution. The principle investigator spent a fruitful summer (1993) at LBL, where in collaboration with J. Raindrop, we developed a numerical method for simulating the stochastic evolution of the phase-space density near local equilibrium. Two papers have appeared in Phys. Rev. C and Nucl. Phys. A, two papers have been accepted for publication, both in Nucl. Phys. A, and two manuscripts have been submitted to Z. Phys. A for publication. Several seminars/contributed talks were given at various meetings and an invited talk was presented at the NATO Advanced Study Institution Hot and Dense Matter, Bodrum/Turkey.
Date: May 1, 1994
Creator: Ayik, S.
Partner: UNT Libraries Government Documents Department


Description: Informal reports are presented on experimental nuclear physics, mass spectroscopy, and crystallography. Each individual project reports about once in 3 months. Those not reported in a particular issue are listed separately in the table of contents with a reference to the last issue in which each appeared. (For preceding period see ANL6164.) (W.D.M.)
Date: October 31, 1960
Partner: UNT Libraries Government Documents Department


Description: The electrostatically deflected beam of the 184-inch cyclotron has been used with the stacked foil and absorber technique to determine the excitation functions for the following reactions: Th{sup 232}(p,6n)Pa{sup 227}, Th{sup 232}(p,3n)Pa{sup 230}, Th{sup 232}(d,7n)Pa{sup 227}, Th{sup 232}({alpha},p8n)Pa{sup 227}, Th{sup 232}({alpha},p5n)Pa{sup 230}, and U{sup 238}(p,{alpha}8n)Pa{sup 227}. The data are presented graphically and discussed individually for each of the reactions. Some rough excitation function data have also been determined for the reactions Th{sup 232}(d,4n)Pa{sup 230}, U{sup 238}(p,{alpha}5n)Pa{sup 230}, Th{sup 232}({alpha},7n)U{sup 229}, and Th{sup 232}({alpha},6n)U{sup 230}. The results are discussed in terms of compound nucleus formation, transparency effects, and other factors in order to arrive at a qualitative picture for the mechanism of high energy nuclear reactions with heavy nuclei.
Date: September 26, 1950
Creator: Meinke, W.W.; Wick, G.C. & Seaborg, G.T.
Partner: UNT Libraries Government Documents Department

Nuclear Reactions of Arsenic with 190 Mev Deuterons

Description: Isotopes formed in the bombardment of {sub 33}As{sup 75} with 190 Mev deuterons range in atomic number up to 24 (or more) mass units lighter than As{sup 75}. Identification of these isotopes was based on chemical behavior and half-life determination. Relative yields have been calculated and show that 80% of the observed reactions produce isotopes within 8 mass units of As{sup 75}. Three new isotopes have been observed: 9.5 d. Se{sup 72} (K), 44 m, Se{sup 71} ({beta}{sup +}), and 52 m, As{sup 71} ({beta}{sup +}).
Date: January 21, 1948
Creator: Hopkins Jr, H.H. & Cunningham, B.B.
Partner: UNT Libraries Government Documents Department

Surrogate Nuclear Reactions - An Indirect Method for Determining Reaction Cross Sections

Description: An indirect method for determining cross sections of reactions proceeding through a compound nucleus is presented. Some applications of the Surrogate nuclear reaction approach are considered and challenges that need to be addressed are outlined.
Date: March 23, 2005
Creator: Escher, J; Ahle, L; Bernstein, L; Burke, J; Church, J A; Dietrich, F et al.
Partner: UNT Libraries Government Documents Department