80-Hg-200

 80-Hg-200 JNDC       EVAL-SEP97 K.SHIBATA, T.FUKAHORI, S.CHIBA,+ 
 JNST 34, 1171 (1997) DIST-MAY10                       20100125   
----JENDL-4.0         MATERIAL 8037                               
-----INCIDENT NEUTRON DATA                                        
------ENDF-6 FORMAT                                               
                                                                  
HISTORY                                                           
 97-09  Evaluation was performed for JENDL-3.3.                   
 97-10  Compiled by T.Fukahori (jaeri).                           
 99-04  Comments were added by T.Fukahori                         
 01-07  Modified by K.Shibata for JENDL-3.3.                      
        (3,251)   deleted.                                        
        (4,2)     transformation matrix deleted.                  
        (5,16-91) INT=22.                                         
 10-01  Modified by K.Shibata for JENDL-4.0.                      
        (1,451)   Updated.                                        
        (2,151)   Unresolved parameters added.                    
        (3,1)     Re-calculated from partial cross sections.      
        (3,4)     Re-calculated from partial cross sections.      
                                                                  
 mf=1  General information                                        
   mt=451  Descriptive data and dictionary                        
                                                                  
 mf=2  Resonance parameters                                       
   mt=151 Resolved resonances                                     
       Resonance region = 1.0e-5 eV to 8.58 keV                   
       Parameters for the multilevel Breit-Wigner formula         
       were adopted from the compilation by Mughabghab+ /1/.      
       R=10.7 fm was selected to reproduce the thermal elastic    
       scattering cross section of natural Mercury measured by    
       Hibdon+ /2/.                                               
                                                                  
       ***********************************************************
       For JENDL-4.0, the unresolved resonance parameters were    
       obtained so as to reproduce the total and capture cross    
       sections in the energy region from 8.58 keV to 300 keV.    
       The parameters should be used only for self-shielding      
       calculations.                                              
       ***********************************************************
                                                                  
       calculated 2200-m/s cross sections and res. integrals.     
                       2200-m/s     res. integ.                   
          elastic       14.52 b         -                         
          capture        1.44 b        2.56 b                     
          total         15.96 b                                   
                                                                  
 mf=3  Nneutron cross sections                                    
   mt=1    Total                                                  
       Below 8.58 keV, no background cross section was given.     
       Above 8.58 keV, spherical optical model calculation was    
       made by casthy code /3/.  Modified Walter-Guss potential   
       parameters /4,5/ were used.                                
                                                                  
   mt=2    Elastic scattering                                     
       Given as total minus nonelastic cross sections.            
                                                                  
   mt=16,17,22,28,103,104,107                                     
       (n,2n),(n,3n),(n,n'a),(n,n'p),(n,p),(n,d),(n,a)            
       calculated by scincros-ii /4/ with the following           
       parameters.                                                
                                                                  
         optical potential parameters                             
           neutron : modified Walter-Guss /4,5/                   
           proton  : combined Perey /6/ and Walter-Guss           
           alpha   : Lemos /7/ modified by Arthur-Young /8/       
           deuteron: Lohr-Haeberli /9/                            
                                                                  
         level density parameters                                 
            nuclei  a(1/MeV)  pair(MeV)  t(MeV)  Ex(MeV)  Ec(MeV) 
            Hg-194    21.5      2.00      0.42    3.66     2.89   
            Hg-195    21.0      0.87      0.59    5.45     0.89   
            Hg-196    20.5      1.71      0.49    4.36     2.50   
            Hg-197    20.0      0.87      0.63    6.00     1.03   
            Hg-198    19.5      1.66      0.63    6.45     1.91   
            Hg-199    18.0      0.87      0.70    6.48     0.75   
            Hg-200    17.0      1.69      0.75    7.81     2.19   
            Hg-201    16.0      0.87      0.79    7.22     0.77   
            Hg-202    15.0      1.58      0.84    8.35     1.79   
            Hg-203    14.5      0.87      0.83    7.02     0.58   
            Hg-204    14.0      1.28      0.82    6.88     2.81   
            Hg-205    13.5      0.87      0.84    6.59     1.86   
            Au-195    21.0      0.84      0.57    5.05     1.11   
            Au-196    20.5      0.00      0.43    1.63     0.60   
            Au-197    19.6      0.79      0.58    4.70     1.26   
            Au-198    19.1      0.00      0.62    4.52     0.57   
            Au-199    18.0      0.82      0.65    5.52     1.16   
            Au-200    17.0      0.00      0.64    4.07     0.47   
            Au-201    15.5      0.71      0.73    5.53     0.90   
            Au-202    15.0      0.00      0.77    5.40     0.00   
            Au-203    14.0      0.41      0.82    6.01     0.00   
            Au-204    13.0      0.00      0.87    5.84     0.00   
            Pt-192    23.2      1.84      0.58    7.15     1.44   
            Pt-193    22.5      0.71      0.58    5.64     0.52   
            Pt-194    21.0      1.55      0.59    6.28     1.67   
            Pt-195    21.0      0.71      0.61    5.69     0.66   
            Pt-196    20.0      1.50      0.58    5.63     1.97   
            Pt-197    18.9      0.71      0.67    6.11     0.60   
            Pt-198    18.7      1.53      0.65    6.53     1.52   
            Pt-199    18.5      0.71      0.67    6.09     0.51   
            Pt-200    18.0      1.42      0.66    6.29     0.00   
            Pt-201    17.5      0.71      0.68    5.66     0.00   
                                                                  
   mt=4,51-84,91  Inelastic scattering                            
       The casthy and sincros-ii calculations were adopted. the   
       direct-process component was considered by the DWBA theory.
       Deformation parameters were taken from ref. /10/ and       
       listed in the table below for adopted levels.              
                                                                  
       The level scheme is given as follows:                      
          no.     energy(MeV)  spin-parity  deformation-parameter 
          g.s.      0.0          0 +                              
           1.       0.3679       2 +          L=2, beta=0.106     
           2.       0.9472       4 +          L=4, beta=0.024     
           3.       1.0293       0 +                              
           4.       1.2541       2 +          L=2, beta=0.015     
           5.       1.5152       0 +          L=0, beta=0.010     
           6.       1.5703       1 +                              
           7.       1.5737       2 +                              
           8.       1.5934       2 +                              
           9.       1.6309       1 +                              
          10.       1.6414       2 +                              
          11.       1.6590       4 +          L=4, beta=0.051     
          12.       1.7067       6 +          L=6, beta=0.017     
          13.       1.7183       1 +                              
          14.       1.7309       2 +                              
          15.       1.7343       3 +                              
          16.       1.7756       3 +                              
          17.       1.8458       3 +                              
          18.       1.8515       5 -          L=5, beta=0.036     
          19.       1.8568       0 +                              
          20.       1.8829       2 +                              
          21.       1.9626       7 -                              
          22.       1.9723       2 +                              
          23.       1.9743       3 +                              
          24.       2.0491       6 -                              
          25.       2.0613       1 +                              
          26.       2.0743       2 +                              
          27.       2.1143       3 +                              
          28.       2.1165       0 +                              
          29.       2.1269       1 +                              
          30.       2.1279       3 +                              
          31.       2.1355       8 -                              
          32.       2.1438       9 -                              
          33.       2.1514       3 -          L=3, beta=0.030     
          34.       2.1895       1 +                              
       Continuum levels were assumed above 2.127 MeV.             
       Following levels were included in the continuum.           
                    2.6100                    L=3, beta=0.071     
                    2.8370                    L=1, beta=0.020     
                                                                  
   mt=102  Capture                                                
       Below 8.58 keV, no background cross section was given.     
       The casthy calculation was adopted above 8.58 keV.         
                                                                  
 mf=4  Angular distributions of secondary neutrons                
   mt=2,51-84                                                     
       Optical and statistical-model calculations were adopted.   
       The DWBA calculations were added.                          
   mt=16,17,22,28,91                                              
       Calculated with sincros-ii.                                
                                                                  
 mf=5  Energy spectrum of secondary neutron                       
   mt=16,17,22,28,91                                              
       Calculated with sincros-ii.                                
                                                                  
 mf=12 Photon multiplicities and transition probability arrays    
   mt=16,17,22,28,51-84,91,102,103,104,107                        
       Multiplicities were calculated with casthy and sincros-ii. 
                                                                  
 mf=14 Photon angular distributions                               
   mt=16,17,22,28,51-84,91,102,103,104,107                        
       Assumed to be isotropic.                                   
                                                                  
 mf=15 Photon energy spectra                                      
   mt=16,17,22,28,91,102,103,104,107                              
       Calculated with casthy and sincros-ii.                     
                                                                  
 References                                                       
  1) Mughabghab S.F. et al.: "Neutron Cross Sections", Vol.1,     
     Part B, Academic Press (1984).                               
  2) Hibdon C.T. et al.: Phys. Rev., 82, 560 (1951).              
  3) Igarasi S. and Fukahori T.: JAERI-1321 (1991).               
  4) Yamamuro N.: JAERI-M 90-006 (1990).                          
  5) Walter R.L. and Guss P.P.: Proc. Int. Conf. on Nucl. Data    
     for Basic and Applied Sci., Santa Fe, May 13-17, 1985,       
     p.1079 (1986).                                               
  6) Perey F.G.: Phys. Rev., 131, 745 (1963).                     
  7) Lemos O.F.: Orsay Rep., Ser. A. No. 136 (1972).              
  8) Arthur E.D. and Young P.G.: LA-8626-MS (1980).               
  9) Lohr J.M. and Haeberli W.: Nucl. Phys., A232, 381 (1974).    
 10) Hogenbirk A. et al: Nucl. Phys., A524, 251 (1991).