JPN037 TOPIC(S) 7 (Burnup credit) for oral presentation ...

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28 Νοε 2012 (πριν από 4 χρόνια και 6 μήνες)

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JPN037


TOPIC(S) 7 (Burnup credit) for oral presentation


IMPROVEMENTS TO SFCOMPO
-

A DATABASE ON ISOTOPIC

COMPOSITION OF SPENT NUCLEAR FUEL


K. SUYAMA and A. NOURI


Organisation for Economic Co
-
operation and Development, Nuclear Energy Agency

Le Seine St
-
Germain,

12, boulevard des Iles

92130 Issy
-
les
-
Moulineaux, France

suyama@nea.fr and ali.nouri@oecd.org


H. MOCHIZUKI


The Japan Research Institute Limited

1
-
4
-
17, Misaki
-
machi, Chiyoda
-
ku, Tokyo

101
-
0061, Japan

mochi@tyo.sci.jri.co.jp


Y. NOMURA


Japan Atomic Ener
gy Research Institute

2
-
4 Shirakata, Tokai
-
mura, Naka
-
gun, Ibaraki
-
ken

319
-
1195, Japan

nomura@popsvr.tokai.jaeri.go.jp



Isotopic composition of spent nuclear fuel (SNF), obtained in post irradiation experiments is

one of the important components required
in the validation of burnup credit methodologies. This led

the Japan Atomic Energy Research Institute (JAERI)[1,2] in 1993 to start developing, SFCOMPO, a

database for isotopic composition of SNF. Data was collected from the open literature and at first

co
mpiled on a database management system, operating on a personal computer.


In the mid
-
1990’s, the World Wide Web started to b
e widely used by the scientific
community

and interfaces between Web
-
based services and relatio
nal databases became available.
SFCO
MPO

was then upgraded to use this new technology for the collec
tion and display of data, using
the freely

available relational database system PostgreSQL[3,4].


The current version of the database contains measured isotopic composition data originating

fro
m 14 reactors (7 PWRs and 7 BWRs) in 4 countries. Data from 246 samples are available,

including 30 samples from fuels using burnable absorbers (UO
2
-
Gd
2
O
3
). The database provides the

composition for U, Pu, Am, Cm and several fission products (Nd, Cs, Sr).
Since ratios of measured

data are included, more than 10,000 data are registered. Related information, such as assembly

geometry data and axial position of samples, are also archived. Furthermore, the interface generates

viewgraphs displaying the variation

of selected composition data against measured burn
-
up.


In order to provide an international framework for the collection, dissemination and further

development of the database, SFCOMPO was migrated to the NEA Web server in autumn 2002. The

database can b
e freely accessed at: http://www.nea.fr/html/science/wpncs/sfcompo/. Further

developments are planned, in order to introduce supplementary information, needed for depletion

calculations.


In this paper, the outline of the SFCOMPO database, as operated on t
he Internet, will be

presented
and the plans for its future development will be discussed.

JPN037



REFERENCES


(1)

Y.Naito, M.Kurosawa, and T.Kaneko, JAERI
-
M 93
-
061, (1993)(in Japanese)

(2)

M.Kurosawa, Y.Naito, H.Sakamoto, and T.Kaneko, JAERI
-
Data/Code 96
-
036 (1
997).

(3)

K.Suyama, JAERI
-
Data/Code 97
-
045(1997)(in Japanese)

(4)

H.Mochizuki, K.Suyama, Y.Nomura, and H.Okuno, JAERI
-
Data/Code 2001
-
020 (2001)

(in Japanese).