OBNINSK.readme
Average parameters of the s-wave neutron resonances
(Provided by A.V. Ignatyuk, 29 October 1997
revised 6 December 1997)
****************************************************
Contents
--------
The initial file of the average resonance parameters evaluated
by the Obninsk group was based on the data published in Ref. [86B].
After consideration of the discrepancies between parameters
evaluated by different groups, the Obninsk group re-analyzed about
80% of data available. More attention was spent to the limitation
of energy intervals on which the resonance parameters were analyzed
and the statistical estimation of errors were complemented with some
experience guesses about associated methodical errors. As result the
new table of the evaluated neutron strength functions and resonance
spacings was prepared. These parameters are included into the
OBNINSK.DAT file and they are chosen as recommended ones for the
RIPL Starter File.
The evaluations of the average radiative widths included into the file
differ only to some corrections of misprints from the initial data [86B].
Format
------
Data are written in FORMAT(I4,A3,I4,A4,F7.3,I4,2(E9.2),2(F5.2),2(A4)).
Each line includes the following data:
Z : Atomic number of compound nucleus,
Sym : Element symbol of compound nucleus,
A : Mass number of compound nucleus,
Io : Spin of the ground state for target nucleus,
Bn : Neutron binding energy of compound nucleus in MeV ,
Nr : Number of resonances included in the statistical analysis,
Do : Average resonance spacing in keV,
dDo : Uncertainty of Do in keV,
So : s-wave neutron strength function in 10**(-4),
dSo : Uncertainty of So in 10**(-4),
Ref : Reference to the work in which the analysis was performed,
Gam : Average radiative width in meV,
dGam: Uncertainty of Gam in meV.
References
----------
78M Masgrov A.R. et al. - In: Proc. Conf. on Neutron Physics.
Harwell, 1979, p. 449.
79D Benzi V. et al. - In: Proc. Meeting on Neutron Cross
Sections of Fission Product Nuclei (Bologna, 1979). Ed.
Coceva C., Panini G.C. NEANDC(E)-209, p. 169.
79F Fort E., Derrien H., Lafond O. - Ibid., p.121.
79R Rohr G. et al. - Ibid., p. 197.
81G Garg J.B., Tikku V.K., Harvay J.A. Phys. Rev., 1981, v. C23,
p. 671; v. 24, p. 1922.
81M Mughabghab S.F., Divadeenam M., Holden N.E. Neutron
Cross Sections. v. 1, part A, N.Y.- London: Academic Press, 1981.
82G Garg J.B. et al. Phys. Rev., 1982, v. C25, p. 1808.
83H Harvay J.A. et al. Phys. Rev., 1983, v. C28, p. 24.
84M Mughabghab S.F. - Neutron Cross Sections. v. 1, part B,
N.Y.- London: Academic Press, 1984.
86B Belanova T.S., Ignatyuk A.V., Pashchenko A.B., Plyaskin V.I.
Radiative Neutron Capture - Handbook (Russian).
Energoatomizdat, Moscow, 1986.
86W Winter R.R. et al. Phys. Rev., 1986, v.C34, p.840.
88H Vonach H. et al. Phys. Rev., 1988, v. C38, p. 2541.
89R Rohr G. et al. Phys.Rev., 1989, v. C39, p. 426.
90P Perey C.M. et al. Report ORNL/TM-11742 (1990).
93M Maklin R.L. et al. Phys. Rev., 1993, v. C48, p. 1120.
94B Brusegan A. et al. - In: Nuclear Data for Science and Technology
(Gatlinburg, 1994). Ed. Dickens J.K., ORNL, 1994, p. 224 & 227.
94F Frankle C.M. et al. Phys. Rev., 1994, v.C50, p. 2774.
96C Carlton R.F., Harvey J.A., Hill N.W. Phys. Rev., 1996, v.C54,
p. 2445.
96F Frankle C.M. et al. Phys. Rev., 1996, v.C54, p. 2051.
96I Ignatyuk A.V. Contribution to the Second CRP Meeting on
RIPL (Vienna, November 1996).
96K Koehler P.E. et al. Phys. Rev., 1996, v.C54, p. 1463.
96Z Zongdi Su et al. Contribution to the Second CRP Meeting on
RIPL (Vienna, November 1996).
97I Ignatyuk A.V. Contribution to the Third CRP Meeting on
RIPL (Trieste, May 1997).