In this release, The FORTRAN format of the GAMMA record has one additional digit for the energy
((39x,i4,1x,f10.4,3(1x,e10.3)))

  SYMB    A     Z     Nol    Nog    Nmax    Nc     Sn[MeV]     Sp[MeV]
  22Mg    22    12    17     18      9      4     19.382000    5.497000

The corresponding FORTRAN format is (a5,6i5,2f12.6)
  
  
SYMB   : mass number with symbol of the element
A      : mass number
Z      : atomic number
Nol    : number of levels in the decay scheme
Nog    : number of gamma rays in the decay scheme
Nmax   : maximum number of levels up to which the level scheme is
         complete
Nc     : number of a level up to which spins and parities are unique
Sn     : neutron separation energy in MeV
Sp     : proton separation energy in MeV

N1  Elv[MeV]  s   p   T1/2    Ng  J  unc  spins   nd  m  percent  mode      m   percent   mode    /.../ shift     band

1  0.000000  0.0  1  3.86E+00  0           0+      2  =  8.2000E+01 %IT     =  1.8000E+01 %B-     /.../ 0.031100  2    
2  1.246300  2.0  1  2.10E12   1           2+      0

(i3,1x,f10.6,1x,f5.1,i3,1x,(e10.3),i3,1x,a1,1x,a4,1x,a18,i3,10(1x,a2,1x,e10.4,1x,a7),f10.6,1x,3(2i))
 

Nl    :  sequential number of a level
Elv   :  energy of the level in MeV
s     :  level spin (unique). Whenever possible unknown spins up to
         Umax were inferred. Unknown and undetermined spins are entered as -1.0
p     :  parity (unique). If the parity of the level was unknown, positive or
         negative was chosen with equal probability. Parities were determined up
         to Umax as in the case of spins. The method of choice is not coded.
             The possible values are: 0 for unknown, +1 for positive and -1 for negative.
T1/2  :  half-life of the level (if known). All known half-lives or level widths
         were converted into seconds. Half-lives of stable nuclei are
         represented as -1.0E+0.
Ng    :  number of gamma rays de-exciting the level.
J     :  flag for spin estimation method (see below the list of possible flags).
unc   :  flag for an uncertain level energy. When impossible to determine, the
         relative energy of the band, the energy of these band heads were set to
         0.0 keV or, if the level order is known, to the preceding level energy
         with a note that an unknown energy X should be added. The notation uses
         X+, Y+, Z+ etc. for different bands.
spins :  original spins from the ENSDF file.
nd    :  number of decay modes of the level (if known). Values from 0 through 10
         are possible; 0 means that the level may decay via gamma-emission,
         and other decay modes are not known.
m     :  decay percentage modifier; informs a user about major uncertainties. 
         The modifiers are copied out of ENSDF with no modification, and can 
         have the following values: =, <, >, ? (unknown, but expected), 
         AP (approximate), GE (greater or equal), LE (less or equal), 
         LT (less then), SY  (value from systematics).
percent: percentage decay of different decay modes. As a general rule  the
         various decay modes add up 100%. There are, however, two exceptions:
         (i) when a small percentage decay is present, the sum may be slightly
         more then 100% due to rounding error, (ii) when beta -decay is
         followed by a heavier particle emission, the percentage of the
         beta-delayed particle emission is given as a portion of the beta-decay
         and the sum can be substantially larger then 100%. Naturally, when the
         modifier is "?" the sum is indefinite.
mode   : short indication of decay modes of a level (see Table below).
shift  : value assigned to the unknown "X", in MeV.
band   : integer assigned to band(s) to which the level is part

1. Ni =0. A unique spin was determined using the spin distribution with sexp. This method is flagged as 'n'.
2. Ni =1. In spite of uncertainties (like (1)+ ), this case was considered to be unique and the flag is 'u'.
3. Ni >1. The spin was chosen from the limited set (eg. (1,3,4)-) using the spin continuous normalized distribution and the flag is 'c'.
4. Above Emax the flag is left ' ' (blank).

  Nf    Eg[MeV]       Pg          Pe          ICC
  3      0.055     2.790E-01   2.870E-01    5.130E-03
  1      0.113     5.330E-01   5.330E-01    0.000E+00


The corresponding FORTRAN format is (39x,i4,1x,f10.4,3(1x,e10.3))

Nf    : sequential number of the final state
Eg    : gamma-ray energy in MeV
Pg    : Probability that the level decays through photon (gamma ray) emission. 
        If no branching ratio is given in the ENSDF file, Pg=0.
Pe    : Probability of the electromagnetic transition (photon, conversion electron, pair creation). 
        The sum of the Pe gives the IT (electromagnetic transition) branching ratio of the level. 
        This is 1 unless other decay modes are listed in the level record (see example below). 
ICC   : Internal conversion coefficient of the transition.

N1  Elv[MeV]  s   p   T1/2       Ng  J  unc  spins   nd  m  percent    mode    m  percent    mode    
2   0.643400  4.0  1  2.200E-03  1            (4+)    2  =  8.2000E+01 %IT     =  1.8000E+01 %B-      

Treatment of the unknown "+X" energies

• If there is a clear match with a Nubase Ground- or Isomeric State, the Nubase excitation energy is used to fix the "X"
• All other levels for which the energy cannot be determined are removed.

The internal conversion factor are calculated using BRICC