POLIDENT: A Module for Generating Continuous-Energy Cross Sections from ENDF Resonance Data

Dunn, M. E. ; Greene, N. M.

Oak Ridge National Laboratory

关键词: Nuclear Data Collections;    Power Generation;    Resonance;    22 General Studies Of Nuclear Reactors;    Cross Sections;   

DOI  :  10.2172/769280
RP-ID  :  ORNL/TM-2000/35
RP-ID  :  AC05-00OR22725
RP-ID  :  769280

美国|英语

来源: UNT Digital Library

【 摘 要 】

POLIDENT (Point Libraries of Data from ENDF/B Tapes) is an AMPX module that accesses the resonance parameters from File 2 of an ENDF/B library and constructs the continuous-energy cross sections in the resonance energy region. The cross sections in the resonance range are subsequently combined with the File 3 background data to construct the cross-section representation over the complete energy range. POLIDENT has the capability to process all resonance reactions that are identified in File 2 of the ENDF/B library. In addition, the code has the capability to process the single- and multi-level Breit-Wigner, Reich-Moore and Adler-Adler resonance formalisms that are identified in File 2. POLIDENT uses a robust energy-mesh-generation scheme that determines the minimum, maximum and points of inflection in the cross-section function in the resolved-resonance region. Furthermore, POLIDENT processes all continuous-energy cross-section reactions that are identified in File 3 of the ENDF/B library and outputs all reactions in an ENDF/B TAB1 format that can be accessed by other AMPX modules.