73-Ta-179 EVAL-Oct14 K.Shibata (JAEA) JNST 53, 957 (2016) DIST-DEC21 20180724 ----JENDL-5 MATERIAL 7322 -----INCIDENT NEUTRON DATA ------ENDF-6 FORMAT History 2014-10 Evaluated with CCONE code by K.Shibata (JAEA) /1/ 2018-07 Activation cross sections and MF=3,6/MT=600-849 added. 2020-10 Energies of discrete primary photons were corrected. MF= 1 General information MT=451 Descriptive data and directory MF= 2 Resonance parameters MT=151 Resolved and unresolved resonance parameters No resolved resonance is given. Unresolved resonance region: 4 eV - 100 keV The parameters were obtained by fitting to the total and caputure cross sections calculated from CCONE /2/. The unresolved parameters should be used only for self-shielding calculation. Thermal cross sections and resonance integrals at 300 K ---------------------------------------------------------- LFS 0.0253 eV res. integ. (*) (barns) (barns) ---------------------------------------------------------- Total 9.9113E+02 Elastic 7.7619E+00 n,gamma 9.8342E+02 1.1632E+03 n,alpha 1.7657E-04 ---------------------------------------------------------- (*) Integrated from 0.5 eV to 10 MeV. MF= 3 Neutron cross sections MT= 1 Total cross section Calculated with CCONE code /2/. MT= 2 Elastic scattering cross section Obtained by subtracting non-elastic cross sections from total cross sections. Below 3.0 eV, the cross section is given by 4.0*pi*R**2, where R was estimated in the unresolved resonance region. MT= 3 Non-elastic cross section Sum of partial non-elastic cross sections. MT=4,51-91 (n,n') cross section Calculated with CCONE code /2/. MT= 16 (n,2n) cross section Calculated with CCONE code /2/. MT= 17 (n,3n) cross section Calculated with CCONE code /2/. MT= 22 (n,na) cross section Calculated with CCONE code /2/. MT= 28 (n,np) cross section Calculated with CCONE code /2/. MT= 32 (n,nd) cross section Calculated with CCONE code /2/. MT= 41 (n,2np) cross section Calculated with CCONE code /2/. MT=102 Capture cross section Calculated with CCONE code /2/. 1/v cross sections were assumed below 3.0 eV. The thermal cross section was normalized to a value of 983 b, which was derived from the measurement of Schmann and Kaeppeler /3/ combined with the isomeric ratio calculated from CCONE. MT=103,600-649 (n,p) cross section Calculated with CCONE code /2/. MT=104,650-699 (n,d) cross section Calculated with CCONE code /2/. MT=105,700-749 (n,t) cross section Calculated with CCONE code /2/. MT=106,750-799 (n,He3) cross section Calculated with CCONE code /2/. MT=107,800-849 (n,a) cross section Calculated with CCONE code /2/. 1/v cross sections were assumed below 3.0 eV. The thermal (n,a) cross section was obtained by multiplying the thermal capture cross sections by the ratio of the CCONE calculations ( sig_na / sig_capture) at 0.0253 eV. MF= 4 Angular distributions of secondary neutrons MT= 2 Elastic scattering Calculated with CCONE code /2/. MF= 6 Energy-angle distributions of emitted particles MT= 16 (n,2n) reaction Calculated with CCONE code /2/. MT= 17 (n,3n) reaction Calculated with CCONE code /2/. MT= 22 (n,na) reaction Calculated with CCONE code /2/. MT= 28 (n,np) reaction Calculated with CCONE code /2/. MT= 32 (n,nd) reaction Calculated with CCONE code /2/. MT= 41 (n,2np) reaction Calculated with CCONE code /2/. MT=51-91 (n,n') reaction Calculated with CCONE code /2/. MT=102 Capture reaction Calculated with CCONE code /2/. MT=600-649 (n,p) reaction Calculated with CCONE code /2/. MT=650-699 (n,d) reaction Calculated with CCONE code /2/. MT=700-749 (n,t) reaction Calculated with CCONE code /2/. MT=750-799 (n,He3) reaction Calculated with CCONE code /2/. MT=800-849 (n,a) reaction Calculated with CCONE code /2/. MF= 8 Information on decay data MT=4 (n,n') MT= 16 (n,2n) MT= 17 (n,3n) MT= 22 (n,na) MT= 28 (n,np) MT= 32 (n,nd) MT= 41 (n,2np) MT=102 Capture MT=103 (n,p) MT=104 (n,d) MT=105 (n,t) MT=106 (n,He3) MT=107 (n,a) MF= 9 Isomeric branching ratios MT=102 Capture reaction Calculated with CCONE code /2/. MT=103 (n,p) reaction Calculated with CCONE code /2/. MT=107 (n,a) reaction Calculated with CCONE code /2/. MF=10 Nuclide production cross sections MT= 28 (n,np) reaction Calculated with CCONE code /2/. MT=104 (n,d) reaction Calculated with CCONE code /2/. MT=106 (n,He3) reaction Calculated with CCONE code /2/. ------------------------------------------------------------------ nuclear model calculation with CCONE code /2/ ------------------------------------------------------------------ * Optical model potentials alpha : E.D.Arthur and P.G.Young/4/ deuteron: J.M.Lohr and W.Haeberli/5/ He-3 : F.D.Becchetti Jr. and G.W.Greenlees/6/ neutron : S. Kunieda et al./7/ proton : A.J.Koning and J.P.Delaroche/8/ triton : F.D.Becchetti Jr. and G.W.Greenlees/6/ * Level scheme of Ta-179 ----------------------- No. Ex(MeV) J PI ----------------------- 0 0.000000 7/2 + c 1 0.030700 9/2 - 2 0.133790 9/2 + c 3 0.180790 11/2 - 4 0.238560 5/2 + 5 0.294650 11/2 + c 6 0.343950 7/2 + 7 0.356190 13/2 - 8 0.477180 9/2 + 9 0.481270 13/2 + c 10 0.520230 1/2 + 11 0.527510 3/2 + 12 0.555580 15/2 - 13 0.627980 5/2 - 14 0.636690 11/2 + 15 0.673000 9/2 - 16 0.673010 5/2 + 17 0.680000 1/2 - 18 0.691850 15/2 + 19 0.695980 7/2 + 20 0.741400 1/2 - 21 0.750200 3/2 - 22 0.757000 1/2 + 23 0.777690 17/2 - 24 0.820950 13/2 + 25 0.825100 13/2 - 26 0.855000 3/2 - 27 0.875000 5/2 - 28 0.891000 3/2 - ----------------------- c: coupled-channel calc. * Level density parameters (Gilbert-Cameron model/9/) Energy dependent parameters of Mengoni-Nakajima/10/ were used. --------------------------------------------------------- a* Pair Eshell T E0 Ematch Elv_max 1/MeV MeV MeV MeV MeV MeV MeV --------------------------------------------------------- Ta-180 21.369 0.000 1.388 0.471 -1.354 3.544 0.624 Ta-179 21.271 0.897 1.887 0.482 -0.700 4.735 0.891 Ta-178 21.172 0.000 1.749 0.394 -0.632 2.315 0.671 Ta-177 21.074 0.902 2.207 0.512 -1.128 5.326 0.497 Hf-179 21.271 0.897 1.623 0.501 -0.867 5.030 1.121 Hf-178 21.172 1.799 1.843 0.545 -0.608 6.823 1.651 Hf-177 21.074 0.902 1.769 0.519 -1.087 5.348 0.846 Lu-177 21.074 0.902 1.751 0.488 -0.689 4.762 1.094 Lu-176 20.975 0.000 1.388 0.470 -1.281 3.445 0.709 Lu-175 20.876 0.907 1.723 0.528 -1.148 5.465 0.595 --------------------------------------------------------- * Gamma-ray strength functions for Ta-180 E1: generalized lorentzian model(GLO)/11/ ER= 12.30 (MeV) EG= 2.43 (MeV) SIG= 259.00 (mb) ER= 15.23 (MeV) EG= 4.48 (MeV) SIG= 341.00 (mb) ER= 5.50 (MeV) EG= 2.50 (MeV) SIG= 3.00 (mb) M1: standard lorentzian model(SLO) ER= 7.26 (MeV) EG= 4.00 (MeV) SIG= 1.04 (mb) E2: standard lorentzian model(SLO) ER= 11.16 (MeV) EG= 3.95 (MeV) SIG= 4.46 (mb) References 1) K.Shibata, J. Nucl. Sci. Technol., 53, 957 (2016). 2) O.Iwamoto, J. Nucl. Sci. Technol., 44, 687 (2007). 3) M. Schumann and F. Kaeppeler, Phys. Rev. C 60, 025802 (1999). 4) E.D.Arthur and P.G.Young, Report LA-8636-MS(ENDF-304) (1980). 5) J.M.Lohr and W.Haeberli, Nucl. Phys. A232,381(1974). 6) F.D.Becchetti Jr. and G.W.Greenlees, Ann. Rept. J.H.Williams Lab., Univ. Minnesota (1969). 7) S. Kunieda et al., J. Nucl. Sci. Technol. 44, 838 (2007). 8) A.J.Koning and J.P.Delaroche, Nucl. Phys. A713, 231 (2003). 9) A. Gilbert and A.G.W. Cameron, Can. J. Phys, 43, 1446 (1965). 10) A. Mengoni and Y. Nakajima, J. Nucl. Sci. Technol., 31, 151 (1994). 11) J. Kopecky and M. Uhl, Phys. Rev. C 41, 1941 (1990).