Directory: gamma/
File:      gamma-strength-exp.readme (November 19, 2001)
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                         gamma-strength-exp.dat

          Compilations of experimental E1 and M1 strength functions
                (original file provided by J. Kopecky to RIPL-1)
                (reformatted by M. Herman on November 19, 2001)
          **********************************************************


Content
-------
Compilations of experimental E1 and M1 strength functions (fE1 and fM1) for
nuclei  from F-20 up to U-239. In certain  number of cases the original values
were corrected (typically for nonstatistical  effects). Therefore,the table
contains both original and recommended values in  units of [10**(-8) MeV**(-3)].


Format
------
Each record of the file contains: 

   Z       : atomic number
   A       : mass number (0 stands for natural element)
   El      : element symbol
   Reac Key: 1 for (n,g), 2 for (g,n), 3 for (n,g) at thermal energy
   Eg(E1)  : mean energy of E1 transitions
   fE1     : recommended gamma-ray strength function f(E1) based on
             s-(p-)wave neutron capture and photonuclear data
   Err     : recommended uncertainty (quadrature added statistical
             normalization (20%) and Porter-Thomas uncertainty)
   fE1     : original gamma-ray strength function f(E1) based on
             s-(p-)wave neutron capture and photonuclear data
   Err     : original uncertainty (quadrature added statistical
             normalization (20%) and Porter-Thomas uncertainty)
   Eg(M1)  : mean energy of M1 transitions
   fM1     : recommended gamma-ray strength function f(M1) based on
             s-(p-)wave neutron capture and photonuclear data
   Err     : recommended uncertainty (quadrature added statistical
             normalization (20%) and Porter-Thomas uncertainty)
   fM1     : original gamma-ray strength function f(M1) based on
             s-(p-)wave neutron capture and photonuclear data
   Err     : original uncertainty (quadrature added statistical
             normalization (20%) and Porter-Thomas uncertainty)
   Ref     : reference number (see list below) 


The corresponding FORTRAN format is (2I4,1X,A2,I3,10F6.3,I4)


References
----------
[1]  S. F. Mughabghab, M. Divadeenam and N. E. Holden, "Neutron Capture Cross
     Sections", (Academic Press, New York, 1981 and 1984), Volume 1, 
     Part A and B.
[2]  Huang Zhongfu and Su Zongdi, Com. of Nuclear Data Progress, 16, 84 (1993).
[3]  A. V. Ignatyuk et al., INDC(CCP)-320 (1990) 25 and private communication.
[4]  G. Reffo, private communication.
[5]  C. M. McCullagh, M. Stelts and R. E. Chrien, Phys. Rev. C23, 1394 (1981).
[6]  C. Coceva et al., in "Capture Gamma Ray Spectroscopy" 1987, (Inst. of
     Physics Conference Series 88, Institute of Physics, Bristol, 1988) p.676.
[7]  C. Coceva et al., Phys. Rev. C30, 679 (1984).
[8]  C. Coceva, Radiative transitions from neutron capture in Cr-53
     resonances, to be published in Il Nuovo Cimento A.
[9]  C. Coceva, private communication.
[10] M. A. Islam, T. J. Kennett and W. V. Prestwich, Z.Physik A335, 173 (1990).
[11] M. A. Islam, T. J. Kennett and W. V. Prestwich, Phys. Rev. C42, 207 (1990).
[12] F. Becvar et al., Journal of Nuclear Physics (Russian), 46, 3 (1987).
[13] F. Becvar, in "Capture Gamma Ray Spectroscopy 1987", (Institute of 
     Physics Conference Series 88, Institute of Physics, Bristol, 1988) p.649 
     and private communication.
[14] F. Becvar et al., Proc. of the International Conference on Neutron Physics,
     Kiev (USSR), 2-6 October, 1983, p.8.
[15] S. Pospisil et al., Annual Report 1995, Frank Laboratory of Neutron Physics
     JINR Dubna, p.84.
[16] S. Kahane, S. Raman, G. G. Slaughter, C. Coceva and M. Stefanon,
     Phys. Rev. C30, 807 (1984).
[17] H. H. Schmidt et al., Nucl. Phys. A504, 1 (1989).