Directory: levels/
File:      levels-param.readme (August, 2015)
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			   levels-param.dat

	  Constant temperature fit of nuclear level schemes
             based on ENSDF source files (April 2014)		   
         *************************************************
	  


Content
-------
Results of the constant temperature (CT) fit of nuclear level
schemes. The main purpose of the file is to provide cut-off energies
defining completeness of level schemes (Umax) and completeness of spin
assignment (Uc) for a given isotope. Included are the parameters that
can be used in level density calculations with constant temperature
formula. Other parameters define quality of the decay scheme and of
the constant temperature fit.  Details of the fitting procedure can be
found in the report INDC(NDS)-416, in the RIPL-2 TECDOC, and in the 
RIPL paper (Nuclear Data Sheets 2009)


Format:
* NOTE on the August 2015 version * 
the Nox, Xm, Ex field are now obsolete. In this RIPL-Discrete Levels 
release the "+X" energies were removed. These fields are still present in
levels-param.dat, with default values, to provide backward-compatibility. 
------
Each record of the file contains:

   Z    : charge number
   A    : mass number
   El   : elemental symbol
   T    : temperature T in the CT model
   dT   : uncertainty of T
   U0   : back-shift in CT model
   dU0  : uncertainty of U0
   Nlev : number of levels in the ENSDF data set
   Nmax : maximum level number up to which the level scheme is complete
   N0   : minimum level number from which the fit is considered
   Nc   : number of level at which unique spin sequence ends
   Umax : energy corresponds to Nmax
   Uc   : energy corresponds to Nc
   Chi  : measure of the quality of fit (blank if there was no fit)
   Fit  : =* if the record comes from the fit of pre-selected nuclei, which
            provided the T(A) function
          = blank if there was no fit
   Flag : ='F' if Chi>0.05 (bad fit)
          = blank otherwise
   NoX  : number of levels with +X, +Y, +Z ... notation (X,Y,Z... are
          unknown energy values)
   Xm   : level number where the first +X, +Y, +Z ... notation appears
   Ex   : level energy where the first +X, +Y, +Z ... notation appears
   sigma: spin cut-off values extracted from the discrete level library

The corresponding FORTRAN format is
(2i4,1x,a2,4(1x,f9.5),4i4,1x,f8.5,1x,f8.5,(1x,e10.3),1x,A1,1x,A1,2i4,f7.4,1x,f6.3)

level-param.dat can be read with the following FORTRAN code

character el*2,char*1,flag
integer z,a,nlev,nmin,nc,NoX,Xm
real tfitted,td,u0,du0,umax0,uc,chi,EX,sigma
open(1,file='level-param.dat',status='old')
read(1,*)
read(1,*)
read(1,*)
read(1,*)
do while(.not.eof(1))
read(1,100)
z,a,el,tfitted,td,u0,du0,nlev,nmax,nmin,nc,umax0,uc,chi,char,flag,NoX,Xm,EX,sigma
write(*,100)
z,a,el,tfitted,td,u0,du0,nlev,nmax,nmin,nc,umax0,uc,chi,char,flag,NoX,Xm,EX,sigma
enddo
100 
format(2i4,1x,a2,4(1x,f9.5),4i4,1x,f8.5,1x,f8.5,(1x,e10.3),1x,A1,2i4,f7.4,1x,f6.3)
END


