1. NAME AND TITLE
REFERDOU: Code System for NE-213 Unfolding of Neutron Spectra up to 100 MeV with
Response Function Error Propagation.
RESU: NE-213 Neutron Response Function Calculation Code
INTER: Interpolation and Gauss-Spreading Code for NE-213 Response Functions
FERDOU: Revised FERDO Unfolding Code Which Can Propagate the Response Function
Institute for Nuclear Study, University of Tokyo, Tokyo, Japan.
3. CODING LANGUAGE AND COMPUTER
Fortran IV; FACOM
4. NATURE OF PROBLEM SOLVED
The REFERDOU system can be used to calculate the response function of a NE-213 scintillation
detector for energies up to 100 MeV, to interpolate and spread (Gaussian) the response function, and
unfold the measured spectrum of neutrons while propagating errors from the response functions to the
5. METHOD OF SOLUTION
The calculation of response functions for energies up to 100 MeV is done with the RESU Monte
Carlo. The code uses measured light output data, new cross-section data based on ENDF/B-IV, PSR-14/O5S, and other sources, and two-body reaction models (rather than evaporation) for carbon
reaction processes. Interpolation and Gaussian spreading is done with the INTER program. The
unfolding with propagation of errors (uncertainties) is accomplished with FERDOU, a modified
version of the PSR-102/FERDO code system.
6. RESTRICTIONS OR LIMITATIONS
7. TYPICAL RUNNING TIME
The package was not checked for typical running time by RSIC.
8. COMPUTER HARDWARE REQUIREMENTS
A FACOM M-380 computer is required.
9. COMPUTER SOFTWARE REQUIREMENTS
A Fortran IV compiler is required.
Y. Uwamino, K. Shin, M. Fujii, and T. Nakamura, "Light Output and Response Function of An NE-213 Scintillator to Neutrons Up to 100 MeV," Nuclear Instruments and Methods Vol. 204, No.1 (179-189) (December 1982).
K. Shin, Y. Uwamino and T. Hyodo, "Propagation of Errors from Response Functions to Unfolded Spectrum," Nuclear Technology, Vol. 53 (78-85) (April 1981).
Y. Uwamino, "User's Manual of NE-213 Neutron Response Function Calculation Code - RESU," Informal Notes (January 1984).
Y. Uwamino, "User's Manual of Interpolation and Gauss-Spreading Code for NE-213 Response Functions -INTER," Informal Notes (June 1984).
Y. Uwamino, "User's Manual of Revised FERDO (FERDO-U) Code," Informal Notes (January
11. CONTENTS OF CODE PACKAGE
Included are the referenced documents and one (1.2MB) DOS diskette which contains the source
codes, data, sample problem input and output.
12. DATE OF ABSTRACT
KEYWORDS: DETECTOR RESPONSE; MONTE CARLO; SCINTILLATION DETECTOR; UNCERTAINTY ANALYSIS; UNFOLDING