Status Report of Japanese Activities for Nuclear
Structure and Decay Data Evaluation
Hideki Iimura
Nuclear Data Center
Japan Atomic Energy Agency
1. Members
Present members of Japanese group are: A. Hashizume, H. Iimura, M. Kanbe, J. Katakura,
K. Kitao, S. Ohya, and Y. Tendow. This March 31, Katakura has retired JAEA, but he has
a part-time position in JAEA and can continue evaluation as a member of our group. Our
group has a meeting once a year to exchange information on each member’s progress in
evaluation.
2. Mass chain evaluation
The mass chain evaluation on which Japanese group has responsibility is A=120-129.
Regarding A=118, evaluation of this mass chain is continued by Kitao and Kanbe.
However, it has already been accepted by the network that the responsibility of A=118
will be transferred to another group after Japanese group finishes the present revision.
Mass
118
120
121
122
123
124
125
126
127
Year
1995
2002
2010
2007
2004
2008
2011
2002
1996
128
2001
Status of Mass Chain Evaluation
Last NDS publication
Status
Evaluators
Kitao
Evaluating (Kitao, Kanbe)
Kitao, Tendow, Hashizume
Ohya
Tamura
Ohya
Katakura, Wu
Katakura
Katakura, Kitao
Kitao, Oshima
Post review with evaluator
(Hashizume) since June 2010
Kanbe, Kitao
As to A=129, we agreed to the proposal by NNDC that the evaluation of this mass chain
was temporally made by Canadian group. This is limited only for the present revision,
and we will undertake the responsibility of A=129 in the next revision. In other mass
chains, A=121 (Ohya) and 125 (Katakura) was published in last and this year. We are
going to start evaluation of A=120 (Hashizume), 126 (Iimura, Katakura), and 128 (Ohya,
Kitao), for which the publication year of NDS is relatively old.
2. Chart of the nuclides
New version of chart of the nuclides from Japanese Nuclear Data Committee and Nuclear
Data Center, JAEA was published last year. The web page of the chart
(http://wwwndc.jaea.go.jp/CN10/index.html) was also revised. Although publication of
this chart was periodically made every 4 years until 2004, it took 6 years this time.
Compilation members are changed from Horiguchi, Tachibana, Koura, and Katakura in
2004 version to Tachibana, Koura, and Katakura in 2010 version. We will continue the
revision of this chart.