52-Te-122 JNDC       EVAL-MAR90 JNDC FP NUCLEAR DATA W.G.        
                      DIST-MAY10                       20091211   
----JENDL-4.0         MATERIAL 5231                               
-----INCIDENT NEUTRON DATA                                        
------ENDF-6 FORMAT                                               
   JENDL-3.2 data were automatically transformed to JENDL-3.3.    
    Interpolation of spectra: 22 (unit base interpolation)        
    (3,251) deleted, T-matrix of (4,2) deleted, and others.       
90-03 New evaluation for JENDL-3 was completed by JNDC FPND       
93-11 JENDL-3.2 was made by JNDC FPND W.G.                        
09-12 Compiled by A.Ichihara.                                     
     *****   modified parts for JENDL-3.2   ********************  
      (2,151)       Resolved and unresolved resonace parameters   
      (3,102)       Re-normalized to experiment.                  
      (3,2), (3,4), (3,51-91), (3,251), (4,51-91)                 
                    Effects of renormalization of the capture     
                    cross section.                                
     *****   modified parts for JENDL-4.0   ********************  
      (2,151)       Resolved resonance parameters were revised    
                    by K.Shibata.                                 
mf = 1  General information                                       
  mt=451 Comments and dictionary                                  
mf = 2  Resonance parameters                                      
  mt=151 Resolved and unresolved resonance parameters             
  Resolved resonance region (MLBW formula) : below 11 keV         
    For JENDL-3.1, resonance parameters were based on             
    Mughabghab et al./2/  The levels only whose resonance         
    energy was reported were assumed to be p-wave resonances,     
    and a reduced neutron width of 23 meV was tentatively given   
    for those levels.  Neutron orbital angular momentum L of      
    some resonances was estimated with a method of Bollinger and  
    Thomas/3/.  Averaged radiation width was deduced to be 154    
    meV, and applied to the levels whose radiation width was      
    unknown.  Scattering radius was also taken from Mughabghab    
    et al.                                                        
    For JENDL-3.2, neutron and radiation width were determined    
    from the neutron widths measured by Tellier et al./4/ and     
    the capture area data by Macklin and Winters/5/ in the        
    energy range above 2.7 keV.  The average radiation width of   
    0.073 eV given by Macklin and Winters was applied to the      
    levels whose radiation width had not been determined from     
    the experiments. The average value of 0.154 eV of JENDL-3.1   
    was replaced with 0.0733 eV.                                  
    In JENDL-4, the neutron widths for 72.6 eV - 1.4 keV were     
    replaced with the ones obtained by Anufriev et al./21/        
  Unresolved resonance region : 11 keV - 100 keV                  
    The neutron strength function S0 was based on the compilation 
    of Mughabghab et al., and S1 and S2 were calculated with      
    optical model code CASTHY/6/.  The observed level spacing was 
    determined to reproduce the capture cross section calculated  
    with CASTHY/6/.  The effective scattering radius was obtained 
    from fitting to the calculated total cross section at 100 keV.
    The radiation width was based on the compilation of Mughabghab
    et al.                                                        
  Typical values of the parameters at 70 keV:                     
    S0 = 0.830e-4, S1 = 1.700e-4, S2 = 1.100e-4, Sg = 6.67e-4,    
    Gg = 0.140 eV, R  = 5.490 fm.                                 
    The unresolved resonance parameters were calculated using     
    the ASREP code/22/.                                           
    The parameters should be used only for self-shielding         
    Thermal cross sections and resonance integrals at 300 K       
                     0.0253 eV           res. integ. (*)          
                      (barns)              (barns)                
     Total            6.528E+00                                   
     Elastic          2.519E+00                                   
     n,gamma          4.009E+00             8.88E+01              
       (*) Integrated from 0.5 eV to 10 MeV.                      
mf = 3  Neutron cross sections                                    
  Below 11 keV, resolved resonance parameters were given.         
  The spherical optical and statistical model                     
  calculation was performed with CASTHY, by taking account of     
  competing reactions, of which cross sections were calculated    
  with PEGASUS/7/ standing on a preequilibrium and multi-step     
  evaporation model.  The OMP's for neutron given in Table 1 were 
  determined to reproduce a systematic trend of the total cross   
  section by changing r0 and rso of Iijima-Kawai potential/8/.    
  The OMP's for charged particles are as follows:                 
     proton   = Perey/9/                                          
     alpha    = Huizenga and Igo/10/                              
     deuteron = Lohr and Haeberli/11/                             
     helium-3 and triton = Becchetti and Greenlees/12/            
  Parameters for the composite level density formula of Gilbert   
  and Cameron/13/ were evaluated by Iijima et al./14/  More       
  extensive determination and modification were made in the       
  present work.  Table 2 shows the level density parameters used  
  in the present calculation.  Energy dependence of spin cut-off  
  parameter in the energy range below E-joint is due to Gruppelaar
  mt = 1  Total                                                   
    Spherical optical model calculation was adopted.              
  mt = 2  Elastic scattering                                      
    Calculated as (total - sum of partial cross sections).        
  mt = 4, 51 - 91  Inelastic scattering                           
    Spherical optical and statistical model calculation was       
    adopted. The level scheme was based on Evaluated Nuclear      
    Structure Data File (1987 version)/16/ and Nuclear Data       
           no.      energy(MeV)    spin-parity                    
           gr.       0.0             0  +                         
            1        0.5640          2  +                         
            2        1.1803          4  +                         
            3        1.2568          2  +                         
            4        1.3570          0  +                         
            5        1.7500          6  +                         
      Levels above 1.753 MeV were assumed to be overlapping.      
  mt = 102  Capture                                               
    Spherical optical and statistical model calculation with      
    CASTHY was adopted.  Direct and semi-direct capture cross     
    sections were estimated according to the procedure of Benzi   
    and Reffo/18/ and normalized to 1 milli-barn at 14 MeV.       
    The gamma-ray strength function (6.36e-04) was adjusted to    
    reproduce the capture cross section of 155 milli-barns at 90  
    keV measured by Macklin and Winters/5/.                       
  mt = 16  (n,2n) cross section                                   
  mt = 17  (n,3n) cross section                                   
  mt = 22  (n,n'a) cross section                                  
  mt = 28  (n,n'p) cross section                                  
  mt =103  (n,p) cross section                                    
  mt =104  (n,d) cross section                                    
  mt =105  (n,t) cross section                                    
  mt =106  (n,he3) cross section                                  
  mt =107  (n,alpha) cross section                                
    These reaction cross sections were calculated with the        
    preequilibrium and multi-step evaporation model code PEGASUS. 
    The Kalbach's constant k (= 125.8) was estimated by the       
    formula derived from Kikuchi-Kawai's formalism/19/ and level  
    density parameters.                                           
    Finally, the (n,p) and (n,alpha) cross sections were          
    normalized to the following values at 14.5 MeV:               
      (n,p)         10.50  mb (recommended by Forrest/20/)        
      (n,alpha)      6.76  mb (systematics of Forrest/20/)        
  mt = 251  mu-bar                                                
    Calculated with CASTHY.                                       
mf = 4  Angular distributions of secondary neutrons               
  Legendre polynomial coefficients for angular distributions are  
  given in the center-of-mass system for mt=2 and discrete inelas-
  tic levels, and in the laboratory system for mt=91.  They were  
  calculated with CASTHY.  For other reactions, isotropic distri- 
  butions in the laboratory system were assumed.                  
mf = 5  Energy distributions of secondary neutrons                
  Energy distributions of secondary neutrons were calculated with 
  PEGASUS for inelastic scattering to overlapping levels and for  
  other neutron emitting reactions.                               
                DEPTH (MEV)       RADIUS(FM)    DIFFUSENESS(FM)   
         ----------------------   ------------  ---------------   
        V  = 45.97-0.199E         R0 = 6.481    A0 = 0.62         
        WS = 6.502                RS = 6.926    AS = 0.35         
        VSO= 7.0                  RSO= 6.49     ASO= 0.62         
TABLE 2  LEVEL DENSITY PARAMETERS                                 
 50-SN-118     1.633E+01 6.140E-01 3.341E-01 6.448E+00 2.340E+00  
 50-SN-119     1.635E+01 5.990E-01 1.772E+00 5.050E+00 1.190E+00  
 50-SN-120     1.595E+01 6.540E-01 4.691E-01 7.083E+00 2.430E+00  
 50-SN-121     1.630E+01 6.100E-01 2.010E+00 5.217E+00 1.190E+00  
 51-SB-119  *  1.858E+01 6.040E-01 5.801E+00 5.944E+00 1.150E+00  
 51-SB-120  *  1.834E+01 6.016E-01 3.366E+01 4.659E+00 0.0        
 51-SB-121     1.730E+01 5.740E-01 1.715E+00 5.022E+00 1.240E+00  
 51-SB-122     1.772E+01 5.500E-01 1.346E+01 3.517E+00 0.0        
 52-TE-120     1.700E+01 5.940E-01 3.471E-01 6.309E+00 2.290E+00  
 52-TE-121     1.800E+01 6.200E-01 5.720E+00 6.022E+00 1.140E+00  
 52-TE-122     1.705E+01 6.350E-01 6.339E-01 7.160E+00 2.380E+00  
 52-TE-123     1.874E+01 5.850E-01 4.619E+00 5.627E+00 1.140E+00  
  syst:  * = ldp's were determined from systematics.              
 Spin cutoff parameters were calculated as 0.146*sqrt(a)*a**(2/3).
 In the CASTHY calculation, spin cutoff factors at 0 MeV were     
 assumed to be 7.524 for Te-122 and 4.266 for Te-123.             
 1) Kawai, M. et al.: J. Nucl. Sci. Technol., 29, 195 (1992).     
 2) Mughabghab, S.F. et al.: "Neutron Cross Sections, Vol. I,     
    Part A", Academic Press (1981).                               
 3) Bollinger, L.M. and Thomas, G.E.: Phys. Rev., 171,1293(1968). 
 4) Tellier, H. and Newstedd, C.M.: Proc. 3rd Int. Conf. on       
    Neutron Cross Sections and Technol., Knoxville, March 1971,   
    p.680 (1971).                                                 
 5) Macklin, R.L. and Winters, R.R.: ORNL-6561 (1988).            
 6) Igarasi, S. and Fukahori, T.: JAERI 1321 (1991).              
 7) Iijima, S. et al.: JAERI-M 87-025, p. 337 (1987).             
 8) Iijima, S. and Kawai, M.: J. Nucl. Sci. Technol., 20, 77      
 9) Perey, F.G: Phys. Rev. 131, 745 (1963).                       
10) Huizenga, J.R. and Igo, G.: Nucl. Phys. 29, 462 (1962).       
11) Lohr, J.M. and Haeberli, W.: Nucl. Phys. A232, 381 (1974).    
12) Becchetti, F.D., Jr. and Greenlees, G.W.: Polarization        
    Phenomena in Nuclear Reactions ((Eds) H.H. Barshall and       
    W. Haeberli), p. 682, the University of Wisconsin Press.      
13) Gilbert, A. and Cameron, A.G.W.: Can. J. Phys., 43, 1446      
14) Iijima, S., et al.: J. Nucl. Sci. Technol. 21, 10 (1984).     
15) Gruppelaar, H.: ECN-13 (1977).                                
16) ENSDF: Evaluated Nuclear Structure Data File (June 1987).     
17) Nuclear Data Sheets, 49, 315 (1986).                          
18) Benzi, V. and Reffo, G.: CCDN-NW/10 (1969).                   
19) Kikuchi, K. and Kawai, M.: "Nuclear Matter and Nuclear        
    Reactions", North Holland (1968).                             
20) Forrest, R.A.: AERE-R 12419 (1986).                           
21) Anufriev, V.A. et al.: Atomnaya Energiya, 69, 395 (1990).     
22) Y.Kikuchi et al., JAERI-Data/Code 99-025 (1999)               
    [in Japanese].