JAERI.readme
JAERI File for Discrete Level Schemes
(Original file name jaeri_lvl.dat, provided by T. Fukahori, 15 September 1997)
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Contact person
______________
Tokio Fukahori (JAERI, Tokai-mura, Japan)
e-mail: fukahori@cracker.tokai.jaeri.go.jp
Contents
--------
The file includes discrete level scheme data for 644 nuclei from 2-He-4
to 100-Fm-255. Level energies, spins and parities for 12109 levels are
included. Some of levels also have gamma-ray branching ratios. Basically
the level scheme data were taken from ENSDF and were slightly modified to
be used in JENDL-3 evaluation.
Format
------
Level scheme is stored between a LEVEL record and an ENDLEVEL record:
LEVEL
...
ENDLEVEL
In the DATA section, the following data can be stored:
NO level number. A ground state should be 0.
EL level energy (MeV).
J spin. For the level energy above where levels can be assumed
to be overlapping, J=-1.0.
PARITY parity. Parity of + and - is represented by 1.0 and -1.0,
respectively. For the overlapping state, PARITY = 0.0.
HL half-life (sec).
NG number of gamma-rays emitted from the level.
FLVL level number of final state.
BR branching ratio.
EG gamma-ray energy (MeV).
If gamma transition data are given, NG, FLVL, BR and/or EG have to be specified
in the form of
DATA ... , NG (FLVL, BR)
Among these parameter symbols, EL, J and PARITY should be always given. For
gamma-ray transition data, in addition to them, NO, NG, FLVL and BR are
obligatory. The data should be stored in the increasing order of level numbers
and level energies. In the columns from 1 to 9, nuclide name is given in the
increasing order.
Example:
LEVEL
SET J3FPLVL
COMMENT USED FOR THE EVALUATION OF FP NUCLEAR DATA FOR JENDL-3
DATA EL, J, PARITY
0330750 0.0 , 1.5, -1.0 ; LVL70
0330750 1.98600E-01, 0.5, -1.0
0330750 2.64660E-01, 1.5, -1.0
0330750 2.79540E-01, 2.5, -1.0
0330750 3.03920E-01, 4.5, 1.0
- - - - - - - - - - - - - - - - - - - -
0330750 8.65000E-01, -1.0, 0.0
0340740 0.0 , 0.0, 1.0 ; LVL70
0340740 6.34780E-01, 2.0, 1.0
0340740 8.53800E-01, 0.0, 1.0
0340740 1.26890E+00, 2.0, 1.0
0340740 1.36320E+00, 4.0, 1.0
0340740 1.60000E+00, 2.0, 1.0
- - - - - - - - - - - - - - - - - - - -
ENDDATA
ENDSET
ENDLEVEL
The following is an example of level scheme with gamma-transition data:
LEVEL
SET YAMAMURO91; FOR 504 NUCLIDES.
COMMENT EVALUATED BY N.YAMAMURO FOR SINCROS (1991).
DATA NO, EL, J, PARITY, NG (FLVL, BR)
0050100 0, 0.00000E+00, 3.0, 1.0, 0
0050100 1, 7.18300E-01, 1.0, 1.0, 1, 0, 1.00000
0050100 2, 1.74010E+00, 0.0, 1.0, 2, 1, 0.99800, 0, 0.00200
0050100 3, 2.15430E+00, 1.0, 1.0, 3, 2, 0.51600, 1, 0.27300
0050100 + 4, 3.58710E+00, 2.0, 1.0, 4, 3, 0.14000, 2, 0.00300
0050100 1, 0.66800, 0, 0.18900
0050100 5, 4.77400E+00, 3.0, 1.0, 2, 1, 0.99500, 0, 0.00500
0050100 6, 5.11030E+00, 2.0, -1.0, 3, 2, 0.05000, 1, 0.31000
0050100 + 7, 5.16390E+00, 2.0, 1.0, 5, 4, 0.07700, 3, 0.64800
0050100 2, 0.00700, 1, 0.22400, 0, 0.04400
- - - - - - - - - - - - - - - - - - - -
ENDDATA
ENDSET
ENDLEVEL
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