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					  EVALUATED NUCLEAR
STRUCTURE DATA ANALYSIS

  L.P.Kabina, S.S.Lisin, I.A.Mitropolsky

  Petersburg Nuclear Physics Institute
                      General analysis

In the ENSDF (2005) there are 2’931 sets of ADOPTED LEVELS.
   1’830 sets contain level schemes with allocated transitions,
   NG>0.
General number of levels in the latter 1’830 sets is 138’617.
   40’235 levels have no connected transitions, and 17’539 levels
   are introduced with one transition only. The greatest number of
   levels is in the scheme of 40Ca, NL=578.
General number of allocated transitions is 204’708. In two data
   sets the number NG of allocated transitions exceeds 1’000
   ones: 1’319 transitions in 53Mn and 1’130 transitions in 55Mn.
   For two data sets a ratio NG/NL is greater than 5: there is 5.26 in
   the level scheme of 55Mn, and 6.44 − in 198Au.
              Distributions of level schemes on the
                number of levels and transitions
                                                                              150




    200

                                         200                                  100




                                                                          N
N




                                     N




    100
                                         100                                  50




     0                                    0                                     0
          0   100        200   300             0   200        400   600             0   1   2           3   4   5
                    NL                                   NG                                     NG/NL
              Placement of transitions
                in the level schemes

For each allocated transition EG we calculate values

   EG  Erec  EL,top  EL,bot 
    dEG
For each level scheme -
       NG
 Q         i
               2
                     Qnorm  Q N
       i 1
     4
 5x10

                                 2000
                                                 2 0.13           2 0.99
 4x10
     4
                                        3743e                 644e
                                 1500
     4
 3x10
NG




                            NG
                                 1000
     4
 2x10



     4                           500
 1x10



     0                             0
         -2   -1   0    1   2             1          2         3       4
                                                   d
                                                         2
    100
                                Qnorm          Number of
                                               data sets
    80                    1’000-10’000            2
                              100-1’000           17
                               10-100             81
    60
                                1-10             654
N




                                0.1-1            704
    40
                                <0.1             372
                                Total            1830
    20
                               Qnorm 1.14
              122e
     0
          2   4           6      8        10
                  Qnorm
           Criterion of Romanovsky
                    400

    QN
 R
     2N             300



                N
                    200

|R|>3 for 494
level schemes
                    100




                      0
                       -10   -5   0   5   10   15   20
                                      R
Optimization of level schemes with the GTOL

 Nuclide   NG    NL    Qnorm   R      Qnorm    R
  27Mg     114   56     9.5    55     0.05    -6.1
 51Mn      148   141   3.1     14     0.13    -5.9
 109Cd     257   135   20      154    0.67    -2.6
  113I     208   168   17      103    1.35    2.3
 116Te     102   85    66       196   1.60    1.8
 141Sm     123   84    1.1       11   0.10    -3.0
 147Sm     116   94    585     3250   2.86     10
 148Dy     93    57    12       48    0.47    -2.3
 171Hf     247   155   39       259   3.11     14
40                                                     40




30                                                     30




20                                                     20
                                               51Mn


10                                                     10




0                                                       0
          -4        -2        0        2   4                     -4        -2        0    2   4

30                                                     30




20                                                     20

                                               148Dy


10                                                     10




 0                                                     0
     -8        -6        -4       -2   0   2                -8        -6        -4   -2   0   2
 Thank you!

mitrplsk@pnpi.spb.ru

				
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