44-Ru-103 JNDC       EVAL-MAR90 JNDC FP NUCLEAR DATA W.G.        
                      DIST-MAY10                       20091210   
----JENDL-4.0         MATERIAL 4446                               
-----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.       
84-10 Evaluation for JENDL-2 was made by JNDC FPND W.G./1/        
90-03 Modification for JENDL-3 was made/2/.                       
09-12 JENDL-4.0.                                                  
      Compiled by A.Ichihara (jaea/ndc).                          
      *****   modified parts for JENDL-4.0   *******************  
      (2,151)      Resolved resonance parameters were revised     
                   by T.Nakagawa.                                 
mf = 1  General information                                       
  mt=451 Comments and dictionary                                  
mf = 2  Resonance parameters                                      
  mt=151 Resolved and unresolved resonance parameters             
  Resolved Resonance Parameters (MLBW; below 50 eV)               
    The resonance parameters of 8 levels up to 330 eV were        
    obtained by Anufriev et al./3/ Their parameters were          
    adopted. In addition, a negative resonance was assumed at     
    -3.0 eV and its parameters were determined so that the        
    capture cross section at 0.0253 eV was about 10 b.            
    No experimental data are available for any cross sections.    
    An upper bounday of the resolved resonance region was set at  
    50 eV, because level missing was obvious above this energy.   
  Unresolved resonance region : 50 eV - 100 keV                   
    The neutron strength functions, S0, S1 and S2 were calculated 
    with optical model code CASTHY/4/.  The observed level spacing
    was determined to reproduce the capture cross section         
    calculated with CASTHY.  The effective scattering radius was  
    obtained from fitting to the calculated total cross section at
    100 keV.                                                      
  Typical values of the parameters at 70 keV:                     
    S0 = 0.450e-4, S1 = 6.000e-4, S2 = 0.530e-4, Sg = 76.7e-4,    
    Gg = 0.170 eV, R  = 5.590 fm.                                 
    The unresolved resonance parameters were calculated using     
    the ASREP code/5/.                                            
    The parameters should be used only for self-shielding         
    Thermal cross sections and resonance integrals at 300K (b)    
                    0.0253 eV    reson. integ.(*)                 
    total           14.637                                        
    elastic          5.083                                        
    capture          9.554          62.0                          
         (*) In the energy range from 0.5 eV to 10 MeV.           
mf = 3  Neutron cross sections                                    
  In thermal region, the capture and elastic scattering cross     
  sections were assumed to be in 1/v form and constant,           
  respectively. Thermal capture cross section was determined by   
  the systematics from the neighboring Ru isotopes.  The          
  scattering cross section was calculated from r = 6.3 fm.        
  Unresolved resonance parameters were given in the energy range  
  from 50 eV to 100 keV.                                          
  Above 100 keV, 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/6/ 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 rso of Iijima-Kawai potential/7/.  The OMP's
  for charged particles are as follows:                           
     proton   = Perey/8/                                          
     alpha    = Huizenga and Igo/9/                               
     deuteron = Lohr and Haeberli/10/                             
     helium-3 and triton = Becchetti and Greenlees/11/            
  Parameters for the composite level density formula of Gilbert   
  and Cameron/12/ were evaluated by Iijima et al./13/  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 taken from Ref./15/.           
           no.      energy(MeV)    spin-parity                    
           gr.       0.0            3/2 +                         
            1        0.0027         5/2 +                         
            2        0.1360         5/2 +                         
            3        0.1742         1/2 +                         
            4        0.2134         7/2 +                         
            5        0.2380        11/2 -                         
            6        0.2877         1/2 +                         
            7        0.2974         7/2 -                         
            8        0.3465         5/2 +                         
            9        0.4056         3/2 +                         
           10        0.4319         1/2 +                         
           11        0.4990         5/2 +                         
      Levels above 0.511 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/16/ and normalized to 1 milli-barn at 14 MeV.       
    The gamma-ray strength function (7.69e-03) was determined from
    the systematics of radiation width (0.170 eV) and average     
    s-wave resonance level spacing (22.1 eV).                     
  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 = 32  (n,n'd) cross section                                  
  mt =103  (n,p) cross section                                    
  mt =104  (n,d) cross section                                    
  mt =105  (n,t) 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 (= 111.5) was estimated by the       
    formula derived from Kikuchi-Kawai's formalism/17/ 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)         11.60  mb (systematics of Forrest/18/)        
      (n,alpha)      2.86  mb (systematics of Forrest)            
  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 from overlapping levels and for
  other neutron emitting reactions.                               
                DEPTH (MEV)       RADIUS(FM)    DIFFUSENESS(FM)   
         ----------------------   ------------  ---------------   
        V  = 47.5                 R0 = 5.972    A0 = 0.62         
        WS = 9.74                 RS = 6.594    AS = 0.35         
        VSO= 7.0                  RSO= 5.97     ASO= 0.62         
TABLE 2  LEVEL DENSITY PARAMETERS                                 
 42-MO- 99     1.774E+01 6.200E-01 4.294E+00 6.058E+00 1.280E+00  
 42-MO-100     1.780E+01 6.000E-01 6.702E-01 6.645E+00 2.220E+00  
 42-MO-101     2.085E+01 5.650E-01 7.153E+00 6.092E+00 1.280E+00  
 42-MO-102  *  1.856E+01 6.452E-01 1.419E+00 8.145E+00 2.520E+00  
 43-TC-100     1.637E+01 5.850E-01 1.189E+01 3.635E+00 0.0        
 43-TC-101     1.675E+01 6.440E-01 6.361E+00 5.761E+00 9.400E-01  
 43-TC-102     1.761E+01 5.400E-01 1.217E+01 3.317E+00 0.0        
 43-TC-103     1.810E+01 6.310E-01 6.436E+00 6.379E+00 1.240E+00  
 44-RU-101     1.726E+01 6.700E-01 7.228E+00 6.836E+00 1.280E+00  
 44-RU-102     1.643E+01 6.550E-01 8.872E-01 7.106E+00 2.220E+00  
 44-RU-103     1.890E+01 6.480E-01 1.210E+01 7.110E+00 1.280E+00  
 44-RU-104     1.650E+01 6.780E-01 8.593E-01 7.878E+00 2.520E+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 5.045 for Ru-103 and 4.524 for Ru-104.             
 1) Aoki, T. et al.: Proc. Int. Conf. on Nuclear Data for Basic   
    and Applied Science, Santa Fe., Vol. 2, p.1627 (1985).        
 2) Kawai, M. et al.: Proc. Int. Conf. on Nuclear Data for Science
    and Technology, Mito, p. 569 (1988).                          
 3) V.A.Anufriev et al.: 1980 Kiev, Vol.2, p.156 (1980).          
 4) Igarasi, S.: J. Nucl. Sci. Technol., 12, 67 (1975).           
 5) Y.Kikuchi et al., JAERI-Data/Code 99-025 (1999)               
     [in Japanese].                                               
 6) Iijima, S. et al.: JAERI-M 87-025, p. 337 (1987).             
 7) Iijima, S. and Kawai, M.: J. Nucl. Sci. Technol., 20, 77      
 8) Perey, F.G: Phys. Rev. 131, 745 (1963).                       
 9) Huizenga, J.R. and Igo, G.: Nucl. Phys. 29, 462 (1962).       
10) Lohr, J.M. and Haeberli, W.: Nucl. Phys. A232, 381 (1974).    
11) 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.      
12) Gilbert, A. and Cameron, A.G.W.: Can. J. Phys., 43, 1446      
13) Iijima, S., et al.: J. Nucl. Sci. Technol. 21, 10 (1984).     
14) Gruppelaar, H.: ECN-13 (1977).                                
15) Matsumoto, J.: private communication (1981).                  
16) Benzi, V. and Reffo, G.: CCDN-NW/10 (1969).                   
17) Kikuchi, K. and Kawai, M.: "Nuclear Matter and Nuclear        
    Reactions", North Holland (1968).                             
18) Forrest, R.A.: AERE-R 12419 (1986).