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Title: Actinide nuclear data for reactor physics calculations

Calculational methodologies and data sources used to predict and recommend fission-product yields and delayed neutron and prompt neutron data for a number of actinide nuclides are presented and discussed. This compilation of nuclear data is the result of a nearly three-year effort under the Japan/US Actinide Program (JUSAP) at Oak Ridge National Laboratory to provide nuclear data supporting the preliminary design of an actinide burner reactor. In this type of reactor, minor actinides are the major components of the fuel. Nuclear data for these minor actinides are, therefore, essential in the design of such reactors. Fission yield, delayed neutron, and prompt neutron data are presented in the report for the following nuclides: Neptumium-237, Plutonium-238, -240, and -242, Americium-241 and -243, and Curium-242, -243, -244, -246, and -248. Additionally, prompt neutron data are also presented for these nuclides (except Plutonium-240, -242 and Curium-242) and for Curium-245 and -247. As in all compilations of nuclear data, the information in this report is subject to change as newer data become available. Most of the data presented here are based on calculational methodologies and should be revised as experimental data become available. The release of Version 6 of the Evaluated Nuclear Data Files (ENDF/B-6)more » is expected to be completed in 1991 and should replace this evaluation in areas of overlap although no serious discrepancies are expected between this compilation and ENDF/B-6. Because of the large amount of data comprising this compilation and limitations in publishing such a voluminous report, a complete listing of the explicit data is not included in this report. The data are, however, available from the authors on 5 {1/2}-in. high-density (1.2-Mbyte) diskettes. The file contents and formats are described in the text, and examples are given in the appendices. 34 refs., 18 tabs.« less
Authors:
;  [1] ;  [2]
  1. (Oak Ridge National Lab., TN (United States))
  2. (Los Alamos National Lab., NM (United States))
Publication Date:
OSTI Identifier:
5341573
Report Number(s):
ORNL/CSD/TM-266
ON: DE91018391
DOE Contract Number:
AC05-84OR21400
Resource Type:
Technical Report
Research Org:
Oak Ridge National Lab., TN (United States)
Sponsoring Org:
USDOE; USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ACTINIDE BURNER REACTORS; DESIGN; DELAYED NEUTRONS; NUCLEAR DATA COLLECTIONS; FISSION PRODUCTS; FISSION YIELD; PROMPT NEUTRONS; ACTINIDES; EVALUATED DATA; BARYONS; DATA; ELEMENTARY PARTICLES; ELEMENTS; EPITHERMAL REACTORS; FAST REACTORS; FERMIONS; FISSION NEUTRONS; HADRONS; INFORMATION; ISOTOPES; MATERIALS; METALS; NEUTRONS; NUCLEAR REACTION YIELD; NUCLEONS; NUMERICAL DATA; RADIOACTIVE MATERIALS; REACTORS; YIELDS; 220100* - Nuclear Reactor Technology- Theory & Calculation; 220600 - Nuclear Reactor Technology- Research, Test & Experimental Reactors; 653006 - Nuclear Theory- Spontaneous & Induced Fission