64-Gd-156 NEA RCOM-JUN82 E.MENAPACE ET.AL.
JEF/DOC- 8 DIST-JAN09 20090105
----JEFF-311 MATERIAL 6437
-----INCIDENT NEUTRON DATA
------ENDF-6 FORMAT
*************************** JEFF-3.1.1 *************************
** **
** Original data taken from: JEFF-3.1 **
** **
******************************************************************
***************************** JEFF-3.1 *************************
** **
** Original data taken from: JEFF-3.0 **
** **
******************************************************************
***************************** JEFF-3.0 ***********************
DATA TAKEN FROM :- JEF-2.2 (DIST-JAN92)
******************************************************************
* JEF-2 *
* DATA WERE TAKEN FROM ENEA/CEA EVALUATION *
******************************************************************
* 16-FEB-85: DATA EXTENDED UP TO 20 MEV.
* 27-APR-89: MISSING CHARGE PARTICLE PRODUCTION DATA INCLUDED
* FROM REAC-ECN-4 LIBRARY
* 15-DEC-91: ISOTOPE MASS CORRECTED (H. TELLIER)
******************************************************************
COMPILATION
-----------
1) RESONANCE FORMULA WAS CHANGED FROM THE SINGLE-LEVEL BREIT-
WIGNER TO THE MULTI-LEVEL BREIT-WIGNER TO AVOID NEGATIVE VLUES OF
ELASTIC SCATTERING CROSS SECTION, AND THE BACKGROUND CROSS SEC-
TION FOR THE ELASTIC SCATTERING WAS REPLACED WITH ZERO.
2) Q-VALUES AND THRESHOLD ENERGIES WERE MODIFIED.
3) THE TOTAL AND TOTAL INELASTIC SCATTERING CROSS SECTIONS WERE
RE-CALCULATED FROM PARTIAL CROSS SECTIONS.
ENEA EVAL-OCT76 CNEN-CDC-BOLOGNA
-----------------------------MF 1-------------------------------
MT 451
2200 M/SEC CAPTURE 1.35B
RESONANCE INTEGRAL 100.B
-----------------------------MF 2------------------------------
MT 151
CONTAINS RESOLVED PLUS UNRESOLVED MEAN PARAMETERS
-----------------------------MF 3-------------------------------
MT 1,2 AND 102
A SMOOTH BACKGROUND WAS ADDED TO ACCOUNT FOR NEGATIVE PEACKS
MT 251,252,253
COMPUTED BY SYSMF FROM CERBERO ANGULAR DISTRIBUTIONS.
-----------------------------MF 4-------------------------------
MT 2
TRANSFORMATION MATRIX AND LEGENDRE COEFFICIENTS COMPUTED BY
SYSMF FROM THE ANGULAR DISTRIBUTIONS GENERATED BY CERBERO.
MT 16
ASSUMED ISOTROPIC IN THE LABORATORY FRAME OF REFERENCE
MT 91 AND DISCRETE LEVELS
ASSUMED ISOTROPIC IN THE LABORATORY FRAME OF REFERENCE
-----------------------------MF 5-------------------------------
MT 16
EVAPORATION SPECTRUM (LF=9) ASSUMED, WITH T=T(E) AND
T = CONSTANT FOR THE 2ND NEUTRON
MT 91
EVAPORATION SPECTRUM (LF=9) ASSUMED, WITH T=T(E)
----------------------------------------------------------------
COMPUTER CODES USED WERE
1)-CRESO RESONANCE REGION DATA
2)-CERBERO CONTINUUM REGION CROSS SECTION,ANGULAR AND ENERGY
DISTRIBUTION DATA
3)-ERINNI HIGH ENERGY REGION CROSS SECTIONS
4)-SYSMF DATA HANDLING AND FILE GENERATION
COMPLETED ON TUESDAY 26 OCTOBER 1976 AT 20.34.14
***************** PROGRAM LINEAR (VERSION 83-1) *****************
DATA LINEARIZED TO WITHIN AN ACCURACY OF 0.100 PER-CENT
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