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57-La-139 NEA RCOM-JUL83 H.GRUPPELAAR,E.MENAPACE
JEF/DOC-30 DIST-JAN09 20090105
----JEFF-311 MATERIAL 5728
-----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 RCN-3 EVALUATION (MAT=4579). *
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* 16-FEB-85: NEW BACKGROUND CROSS SECT. CALCULATED AND INSERTED
* 26-JAN-87: RESONANCE PARAMETER SECTION UPDATED USING DATA *
* FROM THE 4TH ED. OF BNL-325. *
* 27-APR-89: MISSING CHARGE PARTICLE PRODUCTION DATA INCLUDED
* FROM REAC-ECN-4 LIBRARY
* 1-NOV-90: ADDITIONAL COMMENTS INSERTED
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* *
* MODIFICATIONS FOR JEF-2 57-LA-139 *
* *
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* *
* COOPERATION ECN-PETTEN AND NEA DATA BANK *
* H.A.J. VAN DER KAMP - ECN *
* H.GRUPPELAAR - ECN *
* I.FOREST - NEADB *
* C.NORDBORG - NEADB *
* *
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* RESOLVED RESONANCE REGION: *
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* *
* RESOLVED RESONANCE PARAMETERS WERE REPLACED BY DATA FROM *
* MOST RECENT BROOKHAVEN COMPILATION(MU81). *
* *
* FOR THOSE RESONANCES FOR WHICH GN AND GG VALUES ARE *
* UNKNOWN, AN AVERAGE VALUE FOR GG HAS BEEN ASSUMED AND *
* GN WAS DERIVED FROM THIS AVERAGE VALUE AND THE CAPTURE *
* AREA AS GIVEN IN MU81. *
* *
* EL=10-5 EV, EH=10.801 KEV. *
* *
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* THERMAL VALUES (2200M/S): *
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* *
* CALCULATED VALUES: *
* MT=2 SIGMA = 10.5121 B *
* MT=102 SIGMA = 8.93108 B *
* MT=102 RESONANCE INTEGRAL = 11.9340 B *
* *
* EXPERIMENTAL VALUES: *
* MT=2 SIGMA = 10.13 +- 0.22 B *
* MT=102 SIGMA = 8.93 +- 0.04 B *
* MT=102 RESONANCE INTEGRAL = 11.8 +- 0.8 B *
* *
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* REFERENCES: *
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* *
* MU81: MUGHABGHAB,S.F., M.DIVADEENAM, N.E.HOLDEN *
* NEUTRON CROSS SECTIONS VOLUME 1 *
* NEUTRON RESONANCE PARAMETERS AND THERMAL CROSS *
* SECTIONS, PART A, Z=1-60, ACADEMIC PRESS 1981 *
* *
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ORIGINAL DATA IN KEDAK FORMAT WERE TRANSLATED INTO ENDF/B
FORMAT WITH KTOE-3.
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EVAL. FOR: LANTHANUM - 139 DISTR: OCT 80
ORIGINAL COMMENT IS:
RCN-3 EVL. FOR LA-139, VERSION Y, H.A.J. VAN DER KAMP AND H.GRUPP
MINIMUM ENERGY .00100 EV
MIN EN OF STATISTICAL MODEL 10.51640 KEV
ENERGY OF FIRST EXCITED STATE .16600 MEV
CONTINUOUS STAT MODEL ABOVE 1.96300 MEV
HIGH ENERGY MODEL ABOVE 6.50000 MEV
MAXIMUM ENERGY 15.00000 MEV
LEVEL DENSITY PARAMETER LA139 13.10000 1/MEV
LEVEL DENSITY PARAMETER LA138 14.50000 1/MEV
*****ADJUSTED EVALUATION BASED UPON CFRMF INTEGRAL DATA , 7-10-80
REVISIONS: SIGTOT,SIGEL UPTO 250 KEV, (N,X) CROSS SECTIONS A
RESOLVED RESONANCE REGION UPTO 10.4 KEV
EVALUATION WITH SIGMA-ECN AT 0 K,MULTILEVEL FORMULA
RESOLVED RESONANCE PARAMETERS FROM NEUDADA-1974
HYPOTHETICAL RESONANCE ADDED AT -14.67 EV
STRENGTH FUNCTION REGION UPTO 250 KEV
CAPTURE CROSS SECTIONS WITH CODE FISPRO-ECN
OTHER CROSS SECTIONS WITH CODE SASSI-ECN
S-WAVE AND P-WAVE STRENGTH FUNCTION EVALUATED BY
DELFINI AND GRUPPELAAR(DE80)
OTHER STRENGTH FUNCTIONS FROM OPTICAL MODEL
DOBS=289 EV,ADJUSTED VALUE
GAMMA WIDTH= 46 MILLI EV,ADJUSTED VALUE
TOTAL AND ELASTIC SCATTERING XSECTS. FITTED TO EXP. DATA.
OPTICAL MODEL REGION
ALL CROSS SECTIONS WITH CODE SASSI-RCN
OPTICAL MODEL FROM IGARASI ET AL.(IG74)
LA-139 LEVEL SCHEME FROM RIBON ET AL.(RI75)
STATISTICAL DESCRIPTION OF TARGET LEVEL SCHEME ABOVE 1.963 M
SQUARED TARGET SPIN CUT OFF FACTOR =8.2 FROM EXPERIMENTAL DI
***************** PROGRAM LINEAR (VERSION 83-1) *****************
DATA LINEARIZED TO WITHIN AN ACCURACY OF 0.100 PER-CENT
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