4-Be- 7 JAEA EVAL-Nov21 N.Iwamoto DIST-DEC21 20211109 ----JENDL-5 MATERIAL 419 -----INCIDENT NEUTRON DATA ------ENDF-6 FORMAT History 21-11 Evaluated with CCONE code by N.Iwamoto 21-12 JENDL-5rc1 revised by N.Iwamoto (MF2/MT151) Changed (MF3/1,2,102) Reconstructed from RP. MF= 1 General information MT=451 Descriptive data and directory MF= 2 Resonance parameters MT=151 Scattering radius only AP is assumed to be 4.50 fm. Thermal cross sections and resonance integrals at 300 K ---------------------------------------------------------- 0.0253 eV res. integ. (*) (barn) (barn) ---------------------------------------------------------- Total 5.72083E+04 Elastic 4.12659E+02 n,gamma 1.53843E-01 6.89597E-02 n,p 5.67745E+04 2.49874E+04 n,alpha 8.04360E-01 3.70365E-01 ---------------------------------------------------------- (*) Integrated from 0.5 eV to 10 MeV. MF= 3 Neutron cross sections MT= 1 Total cross section Resolved resonance parameters were taken from Damone et al. /1/. The orbital angular momentum of resonances was assigned. The gamma width was assumed so as to reproduce the capture cross section of Bassi et al./2/. Calculated with CCONE code /3/. MT= 2 Elastic scattering cross section Calculated with CCONE code /3/. MT= 4,51-91 (n,n') cross section Calculated with CCONE code /3/. MT= 5 Total reaction (except fission) cross section Calculated with CCONE code /3/. MT= 16 (n,2n) cross section Calculated with CCONE code /3/. MT= 22 (n,na) cross section Calculated with CCONE code /3/. MT= 28 (n,np) cross section Calculated with CCONE code /3/. MT= 32 (n,nd) cross section Calculated with CCONE code /3/. MT= 34 (n,nh) cross section Calculated with CCONE code /3/. MT= 41 (n,2np) cross section Calculated with CCONE code /3/. MT= 44 (n,n2p) cross section Calculated with CCONE code /3/. MT= 45 (n,npa) cross section Calculated with CCONE code /3/. MT=102 Capture cross section Calculated with CCONE code /3/. MT=103,600-649 (n,p) cross section Calculated with CCONE code /3/. MT=104,650-699 (n,d) cross section Calculated with CCONE code /3/. MT=105,700-749 (n,t) cross section Calculated with CCONE code /3/. MT=106,750-799 (n,He3) cross section Calculated with CCONE code /3/. MT=107,800-849 (n,a) cross section Calculated with CCONE code /3/. MT=111 (n,2p) cross section Calculated with CCONE code /3/. MT=112 (n,pa) cross section Calculated with CCONE code /3/. MT=115 (n,pd) cross section Calculated with CCONE code /3/. MT=116 (n,pt) cross section Calculated with CCONE code /3/. MT=117 (n,da) cross section Calculated with CCONE code /3/. MF= 4 Angular distributions of secondary particles MT= 2 Elastic scattering Calculated with CCONE code /3/. MF= 6 Energy-angle distributions of emitted particles MT= 5 Total reaction (except fission) reaction Calculated with CCONE code /3/. MT= 16 (n,2n) reaction Calculated with CCONE code /3/. MT= 22 (n,na) reaction Calculated with CCONE code /3/. MT= 28 (n,np) reaction Calculated with CCONE code /3/. MT= 32 (n,nd) reaction Calculated with CCONE code /3/. MT= 34 (n,nh) reaction Calculated with CCONE code /3/. MT= 41 (n,2np) reaction Calculated with CCONE code /3/. MT= 44 (n,n2p) reaction Calculated with CCONE code /3/. MT= 45 (n,npa) reaction Calculated with CCONE code /3/. MT= 51- 91 (n,n') reaction Calculated with CCONE code /3/. MT=102 Capture reaction Calculated with CCONE code /3/. MT=111 (n,2p) reaction Calculated with CCONE code /3/. MT=112 (n,pa) reaction Calculated with CCONE code /3/. MT=115 (n,pd) reaction Calculated with CCONE code /3/. MT=116 (n,pt) reaction Calculated with CCONE code /3/. MT=117 (n,da) reaction Calculated with CCONE code /3/. MT=600-649 (n,p) reaction Calculated with CCONE code /3/. MT=650-699 (n,d) reaction Calculated with CCONE code /3/. MT=700-749 (n,t) reaction Calculated with CCONE code /3/. MT=750-799 (n,He3) reaction Calculated with CCONE code /3/. MT=800-849 (n,a) reaction Calculated with CCONE code /3/. MF= 8 Information on decay data MT= 4 (n,n') reaction Decay chain is given in the decay data file. MT= 5 Total reaction (except fission) reaction Decay chain is given in the decay data file. MT= 16 (n,2n) reaction Decay chain is given in the decay data file. MT= 28 (n,np) reaction Decay chain is given in the decay data file. MT= 32 (n,nd) reaction Decay chain is given in the decay data file. MT= 41 (n,2np) reaction Decay chain is given in the decay data file. MT= 44 (n,n2p) reaction Decay chain is given in the decay data file. MT=102 Capture reaction Decay chain is given in the decay data file. MT=103 (n,p) reaction Decay chain is given in the decay data file. MT=104 (n,d) reaction Decay chain is given in the decay data file. MT=105 (n,t) reaction Decay chain is given in the decay data file. MT=106 (n,He3) reaction Decay chain is given in the decay data file. MT=111 (n,2p) reaction Decay chain is given in the decay data file. MT=115 (n,pd) reaction Decay chain is given in the decay data file. ------------------------------------------------------------------ nuclear model calculation with CCONE code /3/ ------------------------------------------------------------------ * Optical model potentials neutron : A.J.Koning and J.P.Delaroche/4/ proton : A.J.Koning and J.P.Delaroche/4/ deuteron: Y.Han et al./5/ triton : folding OMP, A.J.Koning and J.P.Delaroche/4/ He-3 : Y.Xu et al./6/ alpha : L.McFadden and G.R.Satchler/7/ * Level scheme of Be-7 ----------------------- No. Ex(MeV) J PI ----------------------- 0 0.000000 3/2 - 1 0.429080 1/2 - ----------------------- * Level density parameters (Gilbert-Cameron model/8/) Energy dependent parameters of Mengoni-Nakajima/9/ were used. --------------------------------------------------------- a* Pair Eshell T E0 Ematch Elv_max 1/MeV MeV MeV MeV MeV MeV MeV --------------------------------------------------------- Be-8 1.835 8.485 -4.748 4.709 5.985 42.440 3.030 Be-7 1.660 4.536 -0.535 5.662 -7.900 43.008 0.429 Be-6 1.480 9.798 0.743 6.542 -7.628 54.295 1.670 Li-7 1.660 4.536 -0.767 5.643 -7.444 43.008 0.478 Li-6 1.480 0.000 -5.441 6.033 -5.344 44.497 2.186 Li-5 1.292 5.367 -5.536 7.095 -3.306 58.297 0.000 He-6 1.480 9.798 0.707 6.539 -7.558 54.295 1.797 He-5 1.292 5.367 -5.881 7.066 -2.642 58.297 0.000 He-4 1.096 12.000 -7.452 8.493 1.580 77.580 20.210 He-3 0.887 6.928 -1.343 11.430 -24.831 93.592 0.000 --------------------------------------------------------- * Gamma-ray strength functions for Be-8 E1: hybrid model(GH)/10/ ER= 30.17 (MeV) EG= 17.41 (MeV) SIG= 5.26 (mb) M1: standard lorentzian model(SLO) ER= 20.50 (MeV) EG= 4.00 (MeV) SIG= 7.45 (mb) E2: standard lorentzian model(SLO) ER= 31.50 (MeV) EG= 6.01 (MeV) SIG= 0.20 (mb) References 1) L.Damone et al., Phys. Rev Lett. 121, 042701 (2018) 2) P.Bassi et al., Nuovo Cimento, 28, 1049 (1963) 3) O.Iwamoto, J. Nucl. Sci. Technol., 44, 687 (2007) 4) A.J.Koning and J.P.Delaroche, Nucl. Phys. A713, 231 (2003) 5) Y.Han et al., Phys. Rev. C 74,044615(2006) 6) Y.Xu et al., Sci. China, Phys. Mech. & Astron., 54[11], 2005 (2011) 7) L.McFadden and G.R.Satchler, Nucl. Phys. 84, 177 (1966) 8) A. Gilbert and A.G.W. Cameron, Can. J. Phys, 43, 1446 (1965) 9) A. Mengoni and Y. Nakajima, J. Nucl. Sci. Technol., 31, 151 (1994) 10) S. Goriely, Phys. Lett. B436, 10 (1998)