49-In-113
49-IN-113 JNDC EVAL-MAR90 JNDC FP NUCLEAR DATA W.G.
DIST-NOV90
----JENDL-3.2 MATERIAL 4925
-----INCIDENT NEUTRON DATA
------ENDF-6 FORMAT
HISTORY
90-03 NEW EVALUATION FOR JENDL-3 WAS COMPLETED BY JNDC FPND
W.G./1/
MF = 1 GENERAL INFORMATION
MT=451 COMMENTS AND DICTIONARY
MF = 2 RESONANCE PARAMETERS
MT=151 RESOLVED AND UNRESOLVED RESONANCE PARAMETERS
RESOLVED RESONANCE REGION (MLBW FORMULA) : BELOW 830 EV
RESONANCE PARAMETERS WERE BASED ON MUGHABGHAB ET AL./2/
TOTAL SPIN J OF SOME RESONANCES WAS TENTATIVELY ESTIMATED WITH
A RANDOM NUMBER METHOD. NEUTRON ORBITAL ANGULAR MOMENTUM L OF
SOME RESONANCES WAS ESTIMATED WITH A METHOD OF BOLLINGER AND
THOMAS/3/. AVERAGED RADIATION WIDTH AND SCATTERING RADIUS
WERE TAKEN FROM MUGHABGHAB ET AL.
UNRESOLVED RESONANCE REGION : 830 EV - 100 KEV
THE NEUTRON STRENGTH FUNCTION, S0, WAS BASED ON MUGHABGHAB ET
AL., AND S1 AND S2 WERE CALCULATED WITH OPTICAL MODEL CODE
CASTHY/4/. THE OBSERVED LEVEL SPACING AND S0 WERE ADJUSTED
TO REPRODUCE THE CAPTURE AND TOTAL CROSS SECTIONS CALCULATED
WITH CASTHY. THE EFFECTIVE SCATTERING RADIUS WAS OBTAINED
FROM FITTING TO THE CALCULATED TOTAL CROSS SECTION AT 100 KEV.
THE RADIATION WIDTH GG WAS BASED ON THE COMPILATION OF
MUGHABGHAB ET AL.
TYPICAL VALUES OF THE PARAMETERS AT 70 KEV:
S0 = 0.840E-4, S1 = 2.700E-4, S2 = 0.770E-4, SG = 126.E-4,
GG = 0.075 EV, R = 5.496 FM.
CALCULATED 2200-M/S CROSS SECTIONS AND RES. INTEGRALS (BARNS)
2200 M/S RES. INTEG.
TOTAL 15.75 -
ELASTIC 3.679 -
CAPTURE 12.07 325
MF = 3 NEUTRON CROSS SECTIONS
BELOW 100 KEV, RESONANCE PARAMETERS WERE GIVEN.
ABOVE 100 KEV, THE SPHERICAL OPTICAL AND STATISTICAL MODEL
CALCULATION WAS PERFORMED WITH CASTHY, BY TAKING ACCOUNT OF
COMPETING REACTIONS, OF WHICH CROSS SECTIONS WERE CALCULATED
WITH PEGASUS/5/ STANDING ON A PREEQUILIBRIUM AND MULTI-STEP
EVAPORATION MODEL. THE OMP'S FOR NEUTRON GIVEN IN TABLE 1 WERE
DETERMINED TO REPRODUCE A SYSTEMATIC TREND OF THE TOTAL CROSS
SECTION BY CHANGING RSO OF IIJIMA-KAWAI POTENTIAL/6/. THE
OMP'S FOR CHARGED PARTICLES ARE AS FOLLOWS:
PROTON = PEREY/7/
ALPHA = HUIZENGA AND IGO/8/
DEUTERON = LOHR AND HAEBERLI/9/
HELIUM-3 AND TRITON = BECCHETTI AND GREENLEES/10/
PARAMETERS FOR THE COMPOSITE LEVEL DENSITY FORMULA OF GILBERT
AND CAMERON/11/ WERE EVALUATED BY IIJIMA ET AL./12/ MORE
EXTENSIVE DETERMINATION AND MODIFICATION WERE MADE IN THE
PRESENT WORK. TABLE 2 SHOWS THE LEVEL DENSITY PARAMETERS USED
IN THE PRESENT CALCULATION. ENERGY DEPENDENCE OF SPIN CUT-OFF
PARAMETER IN THE ENERGY RANGE BELOW E-JOINT IS DUE TO GRUPPELAAR
/13/.
MT = 1 TOTAL
SPHERICAL OPTICAL MODEL CALCULATION WAS ADOPTED.
MT = 2 ELASTIC SCATTERING
CALCULATED AS (TOTAL - SUM OF PARTIAL CROSS SECTIONS).
MT = 4, 51 - 91 INELASTIC SCATTERING
SPHERICAL OPTICAL AND STATISTICAL MODEL CALCULATION WAS
ADOPTED. THE LEVEL SCHEME WAS BASED ON EVALUATED NUCLEAR
STRUCTURE DATA FILE (1987 VERSION)/14/ AND NUCLEAR DATA
SHEETS/15/.
NO. ENERGY(MEV) SPIN-PARITY
GR. 0.0 9/2 +
1 0.3917 1/2 -
2 0.6468 3/2 -
3 1.0242 5/2 +
4 1.0297 1/2 +
5 1.0642 3/2 +
6 1.1064 5/2 -
7 1.1315 5/2 +
8 1.1731 11/2 +
9 1.1911 7/2 +
10 1.3448 13/2 +
11 1.3510 13/2 +
12 1.3807 1/2 -
13 1.4718 3/2 -
14 1.5094 7/2 +
15 1.5361 1/2 -
16 1.5670 9/2 +
17 1.5695 1/2 -
18 1.6305 9/2 +
19 1.6882 9/2 +
20 1.7000 1/2 +
21 1.7070 1/2 +
22 1.7580 9/2 +
23 1.7680 3/2 +
24 1.8227 1/2 +
LEVELS ABOVE 1.836 MEV WERE ASSUMED TO BE OVERLAPPING.
MT = 102 CAPTURE
SPHERICAL OPTICAL AND STATISTICAL MODEL CALCULATION WITH
CASTHY WAS ADOPTED. DIRECT AND SEMI-DIRECT CAPTURE CROSS
SECTIONS WERE ESTIMATED ACCORDING TO THE PROCEDURE OF BENZI
AND REFFO/16/ AND NORMALIZED TO 1 MILLI-BARN AT 14 MEV.
THE GAMMA-RAY STRENGTH FUNCTION (125.E-04) WAS ADJUSTED TO
REPRODUCE THE CAPTURE CROSS SECTION OF 290 MILLI-BARNS AT 500
KEV MEASURED BY GRENCH AND MENLOVE/17/.
MT = 16 (N,2N) CROSS SECTION
MT = 17 (N,3N) CROSS SECTION
MT = 22 (N,N'A) CROSS SECTION
MT = 28 (N,N'P) CROSS SECTION
MT = 32 (N,N'D) CROSS SECTION
MT = 33 (N,N'T) CROSS SECTION
MT =103 (N,P) CROSS SECTION
MT =104 (N,D) CROSS SECTION
MT =105 (N,T) CROSS SECTION
MT =106 (N,HE3) CROSS SECTION
MT =107 (N,ALPHA) CROSS SECTION
THESE REACTION CROSS SECTIONS WERE CALCULATED WITH THE
PREEQUILIBRIUM AND MULTI-STEP EVAPORATION MODEL CODE PEGASUS.
THE KALBACH'S CONSTANT K (= 151.6) WAS ESTIMATED BY THE
FORMULA DERIVED FROM KIKUCHI-KAWAI'S FORMALISM/18/ AND LEVEL
DENSITY PARAMETERS.
FINALLY, THE (N,2N), (N,P) AND (N,ALPHA) CROSS SECTIONS WERE
NORMALIZED TO THE FOLLOWING VALUES AT 14.5 MEV:
(N,2N) 1600.00 MB (RECOMMENDED BY BYCHKOV+/19/)
(N,P) 24.50 MB (SYSTEMATICS OF FORREST/20/)
(N,ALPHA) 4.99 MB (SYSTEMATICS OF FORREST)
MT = 251 MU-BAR
CALCULATED WITH CASTHY/4/.
MF = 4 ANGULAR DISTRIBUTIONS OF SECONDARY NEUTRONS
LEGENDRE POLYNOMIAL COEFFICIENTS FOR ANGULAR DISTRIBUTIONS ARE
GIVEN IN THE CENTER-OF-MASS SYSTEM FOR MT=2 AND DISCRETE INELAS-
TIC LEVELS, AND IN THE LABORATORY SYSTEM FOR MT=91. THEY WERE
CALCULATED WITH CASTHY. FOR OTHER REACTIONS, ISOTROPIC DISTRI-
BUTIONS IN THE LABORATORY SYSTEM WERE ASSUMED.
MF = 5 ENERGY DISTRIBUTIONS OF SECONDARY NEUTRONS
ENERGY DISTRIBUTIONS OF SECONDARY NEUTRONS WERE CALCULATED WITH
PEGASUS FOR INELASTIC SCATTERING FROM OVERLAPPING LEVELS AND FOR
OTHER NEUTRON EMITTING REACTIONS.
TABLE 1 NEUTRON OPTICAL POTENTIAL PARAMETERS
DEPTH (MEV) RADIUS(FM) DIFFUSENESS(FM)
---------------------- ------------ ---------------
V = 47.64-0.473E R0 = 6.256 A0 = 0.62
WS = 9.744 RS = 6.469 AS = 0.35
VSO= 7.0 RSO= 6.241 ASO= 0.62
THE FORM OF SURFACE ABSORPTION PART IS DER. WOODS-SAXON TYPE.
TABLE 2 LEVEL DENSITY PARAMETERS
NUCLIDE SYST A(1/MEV) T(MEV) C(1/MEV) EX(MEV) PAIRING
---------------------------------------------------------------
47-AG-109 1.650E+01 6.300E-01 2.761E+00 5.709E+00 1.250E+00
47-AG-110 1.791E+01 5.900E-01 2.444E+01 4.282E+00 0.0
47-AG-111 1.955E+01 5.810E-01 6.505E+00 5.835E+00 1.140E+00
47-AG-112 * 1.857E+01 6.210E-01 4.959E+01 5.129E+00 0.0
48-CD-110 1.750E+01 6.300E-01 5.212E-01 7.482E+00 2.610E+00
48-CD-111 1.874E+01 5.930E-01 3.762E+00 6.000E+00 1.360E+00
48-CD-112 1.797E+01 6.190E-01 6.327E-01 7.351E+00 2.500E+00
48-CD-113 1.973E+01 5.760E-01 4.397E+00 6.018E+00 1.360E+00
49-IN-111 * 1.948E+01 6.234E-01 1.096E+01 6.793E+00 1.250E+00
49-IN-112 1.743E+01 5.090E-01 7.808E+00 2.779E+00 0.0
49-IN-113 1.885E+01 5.070E-01 1.371E+00 4.280E+00 1.140E+00
49-IN-114 1.632E+01 5.290E-01 6.292E+00 2.752E+00 0.0
---------------------------------------------------------------
SYST: * = LDP'S WERE DETERMINED FROM SYSTEMATICS.
SPIN CUTOFF PARAMETERS WERE CALCULATED AS 0.146*SQRT(A)*A**(2/3).
IN THE CASTHY CALCULATION, SPIN CUTOFF FACTORS AT 0 MEV WERE
ASSUMED TO BE 6.604 FOR IN-113 AND 5.0 FOR IN-114.
REFERENCES
1) KAWAI, M. ET AL.: PROC. INT. CONF. ON NUCLEAR DATA FOR SCIENCE
AND TECHNOLOGY, MITO, P. 569 (1988).
2) MUGHABGHAB, S.F. ET AL.: "NEUTRON CROSS SECTIONS, VOL. I,
PART A", ACADEMIC PRESS (1981).
3) BOLLINGER, L.M. AND THOMAS, G.E.: PHYS. REV., 171,1293(1968).
4) IGARASI, S.: J. NUCL. SCI. TECHNOL., 12, 67 (1975).
5) IIJIMA, S. ET AL.: JAERI-M 87-025, P. 337 (1987).
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(1983).
7) PEREY, F.G: PHYS. REV. 131, 745 (1963).
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9) LOHR, J.M. AND HAEBERLI, W.: NUCL. PHYS. A232, 381 (1974).
10) BECCHETTI, F.D., JR. AND GREENLEES, G.W.: POLARIZATION
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W. HAEBERLI), P. 682, THE UNIVERSITY OF WISCONSIN PRESS.
(1971).
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(1965).
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13) GRUPPELAAR, H.: ECN-13 (1977).
14) ENSDF: EVALUATED NUCLEAR STRUCTURE DATA FILE (JUNE 1987).
15) NUCLEAR DATA SHEETS, 33, 1 (1981).
16) BENZI, V. AND REFFO, G.: CCDN-NW/10 (1969).
17) GRENCH, H.A. AND MENLOVE, H.O.: PHYS. REV., 165, 1298 (1968).
18) KIKUCHI, K. AND KAWAI, M.: "NUCLEAR MATTER AND NUCLEAR
REACTIONS", NORTH HOLLAND (1968).
19) BYCHKOV, V.M. ET AL.: INDC(CCP)-146/LJ (1980).
20) FORREST, R.A.: AERE-R 12419 (1986).