28-Ni- 60
28-NI- 60 NAIG EVAL-MAR87 S.IIJIMA
DIST-SEP89 REV2-SEP93
----JENDL-3.2 MATERIAL 2831
-----INCIDENT NEUTRON DATA
------ENDF-6 FORMAT
HISTORY
87-03 EVALUATION WAS PERFORMED FOR JENDL-3. SHORT DESCRIPTION
ON THE EVALUATION IS GIVEN IN REF./1/
87-05 COMPILED BY K.SHIBATA (JAERI).
90-10 MF=5, MT=16, 22 AND 28: DATA AT THRESHOLD ENERGIES WERE
MODIFIED. MF=12, MT=16, 91 AND 102 WERE SLIGHTLY MODIFIED.
93-09 JENDL-3.2.
COMPILED BY T.NAKAGAWA (NDC/JAERI)
***** MODIFIED PARTS FOR JENDL-3.2 ********************
(4,16-28), (4,91) TAKEN FROM JENDL FUSION FILE
(5,16-91) TAKEN FROM JENDL FUSION FILE
(12,102) BELOW 500 KEV, REVISED BY S.IGASASI
(15,102) BELOW 500 KEV, REVISED BY S.IGARASI
***********************************************************
-------------------------------------------------------------
JENDL FUSION FILE /2/ (AS OF SEP. 1993)
EVALUATED BY S.CHIBA (NDC/JAERI)
COMPILED BY S.CHIBA
ALL OF CROSS SECTIONS WERE TAKEN FROM JENDL-3.1. EDX'S
OF MT=16, 22, 28 AND 91 WERE REPLACED BY THOSE CALCULATED
WITH SINCROS-II CODE SYSTEM/3/ BECAUSE NORMALIZATION
ERRORS WERE FOUND IN THE DATA STORED IN JENDL-3.1. DDX'S
OF CONTINUUM REACTIONS WERE CREATED WITH F15TOB PROGRAM
/2/. KUMABE'S SYSTEMATICS /4/ WAS USED. THE PRECOM-
POUND/COMPOUND RATIO WAS CALCULATED BY THE SINCROS-II CODE
SYSTEM.
OPTICAL-MODEL, LEVEL DENSITY AND OTHER PARAMETERS USED
IN THE SINCROS-II CALCULATION ARE DESCRIBED IN REF./3/.
LEVEL SCHEMES WERE DETERMINED ON THE BASIS OF ENSDF/5/.
-------------------------------------------------------------
MF=1,MT=451 COMMENTS AND DICTIONARY
MF=2,MT=151 RESOLVED RESONANCE PARAMETERS : 1.0E-5 EV - 456 KEV
EVALUATION BASED ON THE FOLLOWING DATA.
PARAMETERS IN JENDL-2 WERE MODIFIED WITH THE DATA OF
PEREY ET AL./6/ TWO NEGATIVE RESONANCES WERE ADDED.
E = -50 KEV GAMMA-N = 12.8 KEV GAMMA-G = 0.0 EV
E = -656 EV GAMMA-N = 0.60 EV GAMMA-G = 6.0 EV
CALCULATED 2200 M/S VALUES AND RESONANCE INTEGRALS (BARN):
2200 M/S VALUE RES. INT.
TOTAL 4.316 -
ELASTIC 1.416 -
CAPTURE 2.900 1.467
MF=3 NEUTRON CROSS SECTIONS
NO BACKGROUND CROSS SECTIONS ARE GIVEN BELOW 456 KEV FOR MT=1,
2, 102. CROSS SECTIONS ABOVE 456 KEV WERE EVALUATED AS FOLLOWS:
MT=1 : TOTAL CROSS SECTION
HIGH RESOLUSION EXPERIMENTAL DATA OF PEREY ET AL./6/ WERE
TRACED UP TO 1.6 MEV, AND THOSE BY STOLER ET AL./7/
BETWEEN 1.6 AND 2.3 MEV. ABOVE 2.3 MEV, CROSS SECTION WAS
CALCULATED WITH OPTICAL MODEL. POTENTIAL PARAMETERS WERE
OBTAINED BY FITTING NAT-NI DATA /8/. THE DATA MEASURED BY
STOLER ET AL./7/ ARE REPRODUCED WELL WITH THIS SET OF OMP.
V =51.33 - 0.331*EN ,WS=8.068 + 0.112*EN ,VSO=7.0 (MEV)
R0=RSO=1.24 ,RS=1.40 (FM)
A0=ASO=0.541 ,AS=0.4 (FM)
SURFACE IMAGINARY PART IS IN DERIVATIVE WOODS-SAXON FORM.
MT=2 : ELASTIC SCATTERING
(TOTAL) - (NONELASTIC CROSS SECTIONS).
MT=3 : NONELASTIC CROSS SECTION
SUM OF MT=4,16,22,28,102,103,104,105,106,107,111.
MT=16 : (N,2N)
CALCULATED WITH GNASH/9/.
MT=22,28,104,105,106,107,111: (N,N'A),(N,N'P),(N,D),
(N,T),(N,HE-3),(N,A),(N,2P)
THE CROSS SECTIONS WERE CALCULATED WITH PEGASUS/10/. THE
(N,A), (N,NA) AND (N,D) CROSS SECTIONS WERE NORMALIZED TO
THE DATA OF GRIMES ET AL./11/ AND THE (N,T) WAS TO THE
DATA OF QAIM AND STOECKLIN/12/ INVERSE CROSS SECTIONS
WERE CALCULATED FROM THE FOLLOWING OMP'S:
PROTON = PEREY/13/
ALPHA = HUIZENGA AND IGO/14/
DEUTERON = LOHR AND HAEBERLI/15/
HELIUM-3 AND TRITON = BECCHETTI AND GREENLEES/16/
MT=4,52-61,91 : INELASTIC SCATTERING
THE CASTHY /17/ AND GNASH /9/ CALCULATIONS WERE ADOPTED
FOR NEUTRON ENERGIES BELOW AND ABOVE 7 MEV, RESPECTIVELY.
THE CONTRIBUTION FROM THE DIRECT PROCESS WAS INCLUDED FOR
MT=51, 52, 53, 54, 61. FOR THE LEVEL OF MT=61, ONLY THE
DIRECT PROCESS WAS CONSIDERED. THE LEVEL SCHEME USED IS
AS FOLLOWS:
NO ENERGY(MEV) SPIN-PARITY
G.S 0.0 0 +
1. 1.3325 2 +
2. 2.1588 2 +
3. 2.2849 0 +
4. 2.5058 4 +
5. 2.6260 3 +
6. 3.1198 4 +
7. 3.1240 2 +
8. 3.1861 3 +
9. 3.1941 1 +
10. 3.2696 2 +
11. 4.0397 3 -
CONTINUUM LEVELS ASSUMED ABOVE 3.318 MEV.
MT=102 : CAPTURE
CALCULATED WITH CASTHY BY NORMALIZING TO 8.0 MB ANT 700
KEV /6/. GAMMA-RAY STRENGTH FUNCTION IS 2.925E-5. LEVEL
DENSITY PARAMETERS ARE:
PAIRING SPIN-CUTOFF F.
A(1/MEV) T(MEV) ENERGY(MEV) (MEV**0.5) EX(MEV)
-------------------------------------------------------------
NI-60 7.700 1.15 2.47 6.209 8.75
NI-61 8.355 1.15 1.20 6.540 8.39
-------------------------------------------------------------
MT=103 : (N,P)
MOST OF DATA WERE TAKEN FROM JENDL-2 WHICH REPRODUCES WELL
THE DATA OF PAULSEN ET AL./18/, AND MODIFIED BELOW 6 MEV
AND AROUND 14.5 MEV BASED ON EXPERIMENTAL DATA AND GNASH
CALCULATION.
MT=251 : MU-BAR
CALCULATED WITH OPTICAL MODEL.
MF=4 ANGULAR DISTRIBUTIONS OF SECONDARY NEUTRONS
MT=2 : CALCULATED WITH OPTICAL MODEL.
MT=16,22,28,91: APPROXIMATELY TRANSFORMED FROM THE MF=6 DATA
(DDX) OF JENDL FUSION FILE.
MT=51-60 : CALCULATED WITH CASTHY. DIRECT PROCESS
INCLUDED IN MT=51, 52, 53, 54
MT=61 : C.C. CALCULATION.
MF=5 ENERGY DISTRIBUTIONS OF SECONDARY NEUTRONS
MT=16,22,28,91: APPROXIMATELY TRANSFORMED FROM THE MF=6 DATA
(DDX) OF JENDL FUSION FILE.
MF=12 PHOTON MULTIPLICITIES AND TRANSITION PROBABILITY ARRAYS
MT=16,22,28,91,103,107:
MULTIPLICITIES CALCULATED WITH GNASH.
MT=102 : MULTIPLICITIES CALCULATED FROM ENERGY BALANCE.
MT=51-61 : TRANSITION PROBABILITY ARRAYS
MF=14 PHOTON ANGULAR DISTRIBUTIONS
MT=16,22,28,51-61,91,102,103,107
ISOTROPIC DISTRIBUTIONS.
MF=15 PHOTON ENERGY DISTRIBUTIONS
MT=16,22,28,91,102,103,107:
CALCULATED WITH GNASH. FOR MT=102, SPECTRA AT 1.0E-5,
2.53E-2, 1.0E+3 AND 1.0E+4 EV WERE CALCULATED WITH
CASTHY, TAKING PRIMARY TRANSITIONS.
REFERENCES
1) IIJIMA S. ET AL.: PROC. INT. CONF. NUCLEAR DATA FOR SCIENCE
AND TECHNOL., MITO, 1988, P.627 (1988).
2) CHIBA S. ET AL.: JAERI-M 92-027, P.35 (1992).
3) YAMAMURO N.: JAERI-M 90-006 (1990).
4) KUMABE I. ET AL.: NUCL. SCI. ENG., 104, 280 (1990).
5) ENSDF: EVALUATED NUCLEAR STRUCTURE DATA FILE, BNL/NNDL.
6) PEREY C.M. ET AL.: ORNL-5893 (1982) AND PHYS. REV., C27, 2556
(1983).
7) P.STOLER ET AL.: PROC. 3RD CONF. NEUTRON CROSS SECTIONS AND
TECHNOL., KNOXVILLE, 1971, VOL. 1, P.311 (1971).
8) KAWAI M. : UNPUBLISHED.
9) YOUNG P.G. AND ARTHUR E.D.: LA-6947 (1977).
10) IIJIMA S. ET AL.: JAERI-M 87-025, P.337 (1987).
11) GRIMES S.M. ET AL.: PHYS. REV., C19, 2127 (1979).
12) QAIM S.M. AND STOECKLIN G.: NUCL. PHYS., A257, 233 (1976).
13) PEREY F.G: PHYS. REV. 131, 745 (1963).
14) HUIZENGA J.R. AND IGO G.: NUCL. PHYS. 29, 462 (1962).
15) LOHR J.M. AND HAEBERLI W.: NUCL. PHYS. A232, 381 (1974).
16) BECCHETTI F.D., JR. AND GREENLEES G.W.: POLARIZATION
PHENOMENA IN NUCLEAR REACTIONS ((EDS) H.H.BARSHALL AND
W.HAEBERLI), P. 682, THE UNIVERSITY OF WISCONSIN PRESS (1971).
17) IGARASI S. AND FUKAHORI T.: JAERI 1321 (1991).
18) PAULSEN A. ET AL.: NUKLEONIK, 10, 91 (1967) (EXFOR20388002).