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94-Pu-237 NEA RCOM-JUN82 SCIENTIFIC CO-ORDINATION GROUP
DIST-JAN09 20090105
----JEFF-311 MATERIAL 9431
-----INCIDENT NEUTRON DATA
------ENDF-6 FORMAT
*************************** JEFF-3.1.1 *************************
** **
** Original data taken from: JEFF-3.1 **
** **
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***************************** JEFF-3.1 *************************
** **
** Original data taken from: JEFF-3.0 **
** **
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***************************** JEFF-3.0 ***********************
DATA TAKEN FROM :- JEF-2.2 (DIST-JAN92)
Components of the energy released by fission (MT=458)
updated by O. Serot et al. (JEF/DOC-887).
Fission Q updated consistently.
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* JEF-2 *
* DATA WERE TAKEN FROM ENDF/B-V(MAT=8437). *
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* 21-DEC-84: RADIOACTIVE DECAY DATA DELETED.
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HEDL EVAL-APR78 MANN AND SCHENTER (FAST)
HEDL TME 77-54 DIST-DEC78 790307
INEL EVAL-AUG78 REICH (DECAY)
MF=1 GENERAL INFORMATION
MT=452 NU. BASED ON WORK OF HOWERTON (REF. 1)
MT=458 ENERGY OF FISSION. SYSTEMATICS OF SHER (REF.4)
MF=2 RESONANCE PARAMETERS
MT=151 ONLY SCATTERING LENGTH IS GIVEN
MF=3 SMOOTH CROSS SECTIONS
MT=1 TOTAL SUM OF PARTIAL CROSS SECTIONS
MT=2 ELASTIC CALCULATED FROM OPTICAL MODEL (REF. 2)
MT=4 INELASTIC CALCULATED FROM STATISTICAL MODEL TO 10
EXCITED LEVELS AND THE CONTINUUM (REF. 2)
MT=16 N,2N BASED ON STATISTICAL MODEL CALCULATIONS (REF. 2)
MT=17 N,3N BASED ON STATISTICAL MODEL CALCULATIONS (REF. 2)
MT=18 FISSION CALCULATED FROM STATISTICAL MODEL (REF. 2)
MT=19 (N,F) SAME AS MT=18 UNTIL (N,NF) THRESHOLD, CONSTANT
THEREAFTER.
MT=20 (N,NF) DIFFERENCE OF MT=18 AND MT=19
MT=51,...,60,91 CALCULATED FROM STATISTICAL MODEL TO 10
EXCITED LEVELS AND THE CONTINUUM (REF. 2)
MT=102 CAPTURE CALCULATED FROM STATISTICAL MODEL (REF. 2)
MT=251,252,253 BASED ON MF=4, MT=2
MF=4 ANGULAR DISTRIBUTIONS
MT=2 BASED ON OPTICAL MODEL CALCULATIONS
MT%2 ASSUMED ISOTROPIC
MF=5 ENERGY DISTRIBUTIONS
MT=16 AND 91 BASED ON PARAMETERS OF GILBERT AND CAMERON (REF. 3)
MT=17 SAME REFERENCE AS MT=16
MT=18,19,20 MAXWELLIAN SHAPE
REFERENCES
1. R.J. HOWERTON, NUCL.SCI.ENG. 62(1977)438
2. F.M. MANN AND R.E. SCHENTER, TRANS.AMER.NUCL.SOC. 23
(1976)546 AND HEDL TME-77-54 (1977)
3. A. GILBERT AND A.G.W. CAMERON, CAN. J. PHYS. 43(1965)
1466.
4. R. SHER, S.FIARMAN, AND C.BECK (PRIV. COMM., OCT. 1976)
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