Retrieved by E4-util: 2010/02/01,11:42:39 1 0 0 0 4.009100+4 9.012471+1 1 0 59 04091 1451 1 0.000000+0 1.0000E+00 0 0 0 64091 1451 2 1.000000+0 2.0000E+07 0 0 10 04091 1451 3 0.000000+0 0.000000+0 0 0 197 1894091 1451 4 40-Zr- 91 IPPE EVAL-JUL06 IGNATYUK A.V. et al. 4091 1451 5 DIST-DEC06 4091 1451 6 ----RUSFOND Material 4091 4091 1451 7 -----Incident neutron data 4091 1451 8 ------ENDF-6 Format 4091 1451 9 4091 1451 10 RUSFOND DESCRIPTION 4091 1451 11 (See RUSFOND manual for details) 4091 1451 12 rev1. october 2007 4091 1451 13 The triplets {ES,TP,GP} for MF12 tables was corrected for 4091 1451 14 inelastic levels. 4091 1451 15 rev0. november 2006 4091 1451 16 Data from BROND-3 are adopted, changed number MAT. 4091 1451 17 4091 1451 18 **************************************************************** 4091 1451 19 BROND-3 description 4091 1451 20 4091 1451 21 AUTHORS OF EVALUATION: IGNATYUK A.V., MANOKHIN V.N., 4091 1451 22 TERTYCHNY G.Ya. 4091 1451 23 COMPILER OF FILE: BULEEVA N.N. 4091 1451 24 ******************************************************************4091 1451 25 MATERIAL 40-ZR-91 4091 1451 26 ******************************************************************4091 1451 27 Content of file 4091 1451 28 MF = 1 MT = 451 Dictionary and comments 4091 1451 29 MF = 2 MT = 151 Resonance parameters 4091 1451 30 MT=151 Resolved and unresolved resonance parameters 4091 1451 31 Resolved resonance region (MLBW formula): below 20 keV 4091 1451 32 Resonance parameters recommended by the new Mughabghab 4091 1451 33 evaluation /06Mu/ are adopted. The neutron width for the 4091 1451 34 resonance 7.75 KeV is reduced by 10 times in accordance with 4091 1451 35 the original data by Brusegan et al /78Br/. For resonances 4091 1451 36 with unknown capture widths the average widths adopted 0.120 eV 4091 1451 37 for s-wave resonances and 0.240 eV for p-wave resonances. 4091 1451 38 4091 1451 39 Unresolved resonance region : 20 keV - 100 keV 4091 1451 40 The neutron strength functions S0 and S1 are estimated 4091 1451 41 on the basis of resolved resonance parameters, S2 is 4091 1451 42 calculated with optical model. The observed level 4091 1451 43 spacing was determined to reproduce the capture cross section 4091 1451 44 calculated with GNASH. The effective scattering radius was 4091 1451 45 obtained from fitting to the calculated total cross section 4091 1451 46 at 70 keV. 4091 1451 47 Typical values of the parameters at 70 keV: 4091 1451 48 S0 = 0.420e-4, S1 = 7.300e-4, S2 = 0.360e-4, Gg = 0.205 eV 4091 1451 49 Do = 660.4 eV, R = 6.621 fm. 4091 1451 50 4091 1451 51 Calculated cross sections for 2200 M/S (barn): 4091 1451 52 total = 10.570, elastic = 9.738, capture = 0.832, 4091 1451 53 capture resonance integral above 0.5 EV : = 6.041 barn 4091 1451 54 4091 1451 55 MF = 3 Neutron cross sections: 4091 1451 56 Neutron cross sections in the energy range 0.01-20 MeV were 4091 1451 57 calculated by the GNASH code /99Yo/ modified to take 4091 1451 58 into account neutron width fluctuations. 4091 1451 59 Neutron transmission coefficients were calculated within 4091 1451 60 the coupled-channel model (code ECIS /70Ra/) for the optical 4091 1451 61 potential /80Ar/ imaginary part of which was modified to take 4091 1451 62 into account direct excitation of the collective low laying 4091 1451 63 level multiplets (5/2+ x 2+) x (5/2+ x 3-). 4091 1451 64 4091 1451 65 Resulting potential parameters are the following: 4091 1451 66 Well depth(MeV) Energy range(MeV) Giometry(fm) 4091 1451 67 Vr=49.0-0.28E 0