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36-Kr- 84 NEA RCOM-JUL82 SCIENTIFIC CO-ORDINATION GROUP
DIST-JAN09 20090105
----JEFF-311 MATERIAL 3643
-----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)
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* JEF-2 *
* DATA WERE TAKEN FROM ENDF/B-V(MAT=1334). *
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* 23-NOV-84: NONELASTIC CROSS SECTION DELETED
* 3-JAN-85: RESONANCE PARAM. CHANGED TO ORIGINAL SINGLE-LEVEL.
* 4-MAR-85: Q-VALUE FOR MT=107 CORRECTED
* 16-OCT87 : CHANGE OF THE FLAG FROM SINGLE LEVEL TO MULTI LEVEL
* BREIT-WIGNER RESONANCE PARAMETERS
* 27-APR-89: MISSING CHARGE PARTICLE PRODUCTION DATA INCLUDED
* FROM REAC-ECN-4 LIBRARY
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BNL EVAL-APR78 A.PRINCE
DIST-APR79 790407
ABUNDANCE=56.90 PERCENT OF NATURAL ELEMENT
RESOLVED RESONANCE REGION (1.0E-05EV TO 2.0 KEV)
RESONANCE PARAMETERS BASED ON DATA FROM REFS.1 AND2
TOTAL NUMBER OF RESONANCES=3
ER1=519 EV RADIATIVE WIDTH=226 MV,NEUTRON WIDTH=345 MV
ER2=580 EV RADIATIVE WIDTH=226 MV,NEUTRON WIDTH=87 MV
ER3=1.625 KEV RADIATIVE WIDTH=226 MV, NEUTRON WIDTH=2.184 EV
RADIATIVE CAPTURE WIDTHS CALC. BY METHOD PROPOSED IN REF.3
CALCULATED VALUES
0.0253 EV CAPTURE CROSS SECTION=0.08288 B EXPT VALUE FOR 4.4 HR
KR-85 =0.09 +/-0.013 B (REF.4) VALUE OF 0.042 +/-0.004 B TO
10.74 YR KR-85.
RESONANCE INTEGRAL(0.5 EV CUT-OFF)=3.49 B
POTENTIAL SCATT. CROSS SECTION=6.2 B (REF.6), 7.5+/-0.13 B
(NAT.KR) REF.2.
FAST NEUTRON CROSS SECTIONS (2.0 KEV TO 20.0 MEV)
GENERAL DESCRIPTION
THE TOTAL AND ELASTIC CROSS SECTIONS
CALCULATED WITH ABACUS OPTICAL MODEL CODE(REF.6)
THE INELASTIC, CAPTURE, N,P, AND N-4HE
CROSS SECTIONS WERE CALCULATED WITH
CODE CERBERO(REF.8)
MT=16,104,105, WERE OBTAINED FROM CODE FASCRO
(REF.9)
ANGULAR DISTRIBUTION DATA WAS ANALYZED WITH CODE CHAD(REF.10)
THE BINDING ENERGIES AND THRESHOLDS ARE BASED ON REF.11
SHELL AND PAIRING CORRECTIONS WERE TAKEN FROM REF.12
THE NUCLEAR TEMPERATURES IN FILE 5 WERE CALCULATED ACCORDING TO
REF.13.
REFERENCES
1- D.P.MANN AND W.W.WATSON,PHYS.REV.116(1959)1516.
2- BNL-325 VOL1(THIRD ED.)1973
3- K.H.MALETSKI ET AL, HELSINKI CONF.1970
4- KONDAIAH ET AL NUCL.PHYS.A120(1968)329
5- M.D.GOLDBERG ET AL,BNL 325(2ND ED. SUPPL.2)1966
6- D.C.RORER ET AL,NUCL.PHYS.A133(1969)410
7- ABACUS,E.H.AUERBACH, BNL 6562(UNPUBL.)
8- CERBERO-2,F.FABBRI ETAL,CNEN RPT.RT/FI(77)6,1977
9- FASCRO ,S.PEARLSTEIN,BNL(UNPUBLISHED)
10- CHAD,R.F.BERLAND, NAA-SR-11231
11- A.H.WAPSTRA AND N.B.GOVE, NUCLEAR DATA TABLES 9A(1971)
12- J.L.COOK ET AL, AUST.J.PHYS.20(1967)477
13- A.GILBERT AND A.G.W.CAMERON, CAN.J.PHYS.43(1965)1446
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