28-Ni- 62 NAIG EVAL-MAR87 S.IIJIMA
DIST-MAY10 20091112
----JENDL-4.0 MATERIAL 2837
-----INCIDENT NEUTRON DATA
------ENDF-6 FORMAT
===========================================================
The data were taken from JENDL-3.3.
===========================================================
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: Data at threshold energies were 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
***********************************************************
-------------------------------------------------------------
JENDL fusion file /2/ (as of Sep. 1993)
Evaluated by S.Chiba (ndc/jaeri)
Compiled by S.Chiba
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/ in which Kumabe's systematics /4/ was used. The
precompound/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/.
-------------------------------------------------------------
2000-05 Re-evaluated by N.Yamamuro (TIT), and compiled by
K.Shibata (jaeri).
*************** modification for JENDL-3.3 **************
(3,1) Re-evaluated above 1.5 MeV
(3,2) Re-calculcated.
(3,16),(3,17),(3,22),(3,28), Calculated by sincros-II
(3,51-91) Calculated by sincros-II
(3,103),(3,104),(3,105), Calculated by sincros-II
(3,106),(3,107), Calculated by sincros-II
(3,203),(3,204),(3,205) Calculated by sincros-II
(3,206),(3,207) Calculated by sincros-II
(3,251) Deleted
(4,17) Isotropic distribution
(4,51-68) Isotropic distribution
(5,16),(5,17),(5,22),(5,28), Calculated by sincros-II
(5,91) Calculated by sincros-II
(12,16-107) Calculated by sincros-II
(14,16-107) Isotropic distribution
(15,16-107) Calculated by sincros-II
*********************************************************
mf=1,mt=451 Comments and dictionary
mf=2,mt=151 Resolved resonance parameters : 1.0e-5 eV - 557 keV
Parameters were taken from JENDL-2.
Scattering radius: 6.2 fm
calculated 2200 m/s values and resonance integrals (barn):
2200 m/s value res.int
total 23.704 -
elastic 9.505 -
capture 14.199 6.91
mf=3 Neutron cross sections
Background cross sections were applied to the resonance region.
Cross sections above 557 keV were evaluated as follows :
mt=1 : Total cross section
Above 557 keV, evaluation was based on the natural Ni
data measured by Larson et al. /6/ with unfolding
considering experimental resolution.
mt=2 : Elastic scattering
(total) - (nonelastic cross section).
mt=16,22,28,103,104,105,106,107 (n,2n),(n,n'a),(n,n'p),
(n,p),(n,d),(n,t),(n,he-3),(n,a)
Calculated by N. Yamamuro /7/ with sincros-II/3/.
mt=4,51-64,91 : Inelastic scattering
Calculated by N. Yamamuro /7/ with sincros-II/3/.
The level scheme used is given as follows:
no energy(MeV) spin-parity
g.s 0.0 0 +
1. 1.1729 2 +
2. 2.0486 0 +
3. 2.3018 2 +
4. 2.3363 4 +
5. 2.8912 0 +
6. 3.0585 2 +
7. 3.1580 2 +
8. 3.1765 4 +
9. 3.2577 2 +
10. 3.2620 4 +
11. 3.2699 2 +
12 3.2775 4 +
13. 3.3703 1 +
14. 3.3780
Continuum levels assumed above 3.462 MeV.
mt=102: capture
Taken from JENDL-3.2.
Calculated with the statistical-model code casthy/8/
The gamma-ray strength function of 1.379e-5 was obtained
from the capture cross section data of Beer and Spencer
/9/.
Level density parameters are:
pairing spin-cutoff f.
a(1/MeV) T(MeV) energy(MeV) (MeV**0.5) Ex(MeV)
-------------------------------------------------------------
Ni-62 8.215 1.13 2.61 6.552 9.280
Ni-63 9.666 0.985 1.20 7.187 7.260
-------------------------------------------------------------
mt=111: (n,2p)
Taken from JENDL-3.2.
Calculated with pegasus/10/. Inverse cross sections were
calculated from the following OMP's:
proton = Perey/11/
alpha = Huizenga and Igo/12/
deuteron = Lohr and Haeberli/13/
helium-3 and triton = Becchetti and Greenlees/14/
mf=4 Angular distributions of secondary neutrons
mt=2 : Calculated with optical model.
Taken from JENDL-3.2.
mt=16,22,28,91: Approximately transformed from the mf=6 data
(DDX) of JENDL fusion file.
mt=17 : Isotropic in the lab system.
mt=51-64 : Isotropic in the center-of-mass system.
mf=5 Energy distributions of secondary neutrons
mt=16,17,22,28,91: Calculated with sincros-II.
mf=12 Photon multiplicities and transition probability arrays
mt=16,22,28,91,103,104,107:
Multiplicities calculated with sincros-II.
mt=102 : Multiplicities calculated from energy balance.
mt=51-64 : Transition probability arrays
mf=14 Photon angular distributions
mt=16,22,28,51-64,91,102,103,104,107
Isotropic distributions.
mf=15 Photon energy distributions
mt=16,22,28,91,102,103,104,107:
Calculated with sincros-II.
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/NNDC.
6) Larson D.C. et al.: ORNL-TM-8203 (1983).
7) Yamamuro N.: Private communication (2000).
8) Igarasi S. and Fukahori T.: JAERI 1321 (1991).
9) Beer H. and Spencer R.R.: Nucl. Phys., A240, 29 (1975).
10) Iijima S. et al.: JAERI-M 87-025, p.337 (1987).
11) Perey F.G: Phys. Rev. 131, 745 (1963).
12) Huizenga J.R. and Igo G.: Nucl. Phys. 29, 462 (1962).
13) Lohr J.M. and Haeberli W.: Nucl. Phys. A232, 381 (1974).
14) 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).