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11-Na- 22 NEA RCOM-JUN83 SCIENTIFIC CO-ORDINATION GROUP
DIST-JAN09 20090105
----JEFF-311 MATERIAL 1122
-----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 *************************
Skeleton MF-5 MT-22,28 added
DATA TAKEN FROM :- JEF-2.2 (DIST-JAN92)
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* JEF-2 *
* DATA WERE TAKEN FROM RCN-2 EVALUATION (MAT=4112). *
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* 11-JAN-85: DATA WERE EXTENDED DOWN TO 1.0E-5 EV AFTER
* CONSULTAION WITH H.GRUPPELAAR.
* 8-FEB-85: Q-VALUE FOR MT=102,103 AND 107 INSERTED
* Q-VALUE FOR MT=108 INSERTED AND THRESHOLD ENERGY
* ADJUSTED
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ORIGINAL DATA IN KEDAK FORMAT WERE TRANSLATED INTO ENDF/B
FORMAT WITH KTOE-3.
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EVAL. FOR: SODIUM - 22 DISTR: NOV 82
ORIGINAL COMMENT IS:
RCN-2 EVALUATION H.GRUPPELAAR AND H.A.J.VAN DER KAMP NA022D 29/11
MINIMUM ENERGY .00100 EV
MIN EN OF STATISTICAL MODEL 21.50000 KEV
ENERGY OF FIRST EXCITED STATE .58300 MEV
CONTINUOUS STAT MODEL ABOVE 3.51900 MEV
HIGH ENERGY MODEL ABOVE 11.00000 MEV
MAXIMUM ENERGY 20.00000 MEV
LEVEL DENSITY PARAMETER NA022 3.50000 1/MEV
LEVEL DENSITY PARAMETER NA021 3.50000 1/MEV
*****CROSS SECTIONS FOR NUCLIDES IN COOLING CIRCUIT OF LMFBR****
*****SODIUM-22**************************************************
RESOLVED RESONANCE REGION UPTO 15 KEV (REVISED NOVEMBER 1982)
THERMAL ABSORBTION CROSS SECTION = 29000+-1000 BARN (MU81)
CALCULATED VALUE OF RESONANCE INTEGRAL= 14700B.
RESOLVED RESONANCE PARAMETERS: ONLY ONE RESONANCE
MEASURED BY GLEDENOV ET AL.(GL82); THE NEUTRON WIDTH OF
THIS RESONANCE HAS BEEN MODIFIED IN ORDER TO FIT
THE VALUE OF THE THERMAL ABSORBTION CROSS SECTION TO
THE ADOPTED VALUE OF MUGHABGHAB(MU81).
STRENGTH FUNCTION REGION UP TO 100 KEV.
CAPTURE CROSS SECTIONS WITH CODE FISPRO-ECN
STRENGTH FUNCTIONS FROM OPTICAL MODEL FOR NA-23 (LA80)
DOBS=30.8 KEV ,FROM BECKERMANN (BE77)
S-WAVE CAPTURE WIDTH=1.0 EV,
P-WAVE CAPTURE WIDTH=5.4 EV, CALCULATED WITH CERBERO
HIGH ENERGY REGION ABOVE 0.1 MEV.
CROSS SECTIONS WITH CODE SASSI-ECN, CERBERO, ERINNI,THRES-2
OPTICAL MODEL PARAMETERS FROM LARSON(LA80)
LEVEL SCHEME OF TARGET NUCLEUS FROM ENDT ET AL.(EN78)
SQUARED SPIN CUTOFF PARAMETER=6.55 FROM EXPERIMENTAL SPIN
DISTRIBUTION
CHARGED PARTICLE EMISSION CROSS SECTION FROM CERBERO,ERINNI
***************** PROGRAM LINEAR (VERSION 83-1) *****************
DATA LINEARIZED TO WITHIN AN ACCURACY OF 0.100 PER-CENT
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