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ASTM Selected Technical Papers
Reactor Dosimetry: Radiation Metrology and Assessment
By
JG Williams
JG Williams
1
ASTM Program Chair
?
University of Arizona
?
Tucson, AZ
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DW Vehar
DW Vehar
2
Symposium Vice-Chair and Secretary
?
Sandia National Laboratories
?
Albuquerque, NM
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FH Ruddy
FH Ruddy
3
Symposium Chair
?
Westinghouse Science & Technology Ctr.
?
Pittsburgh, PA
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DM Gilliam
DM Gilliam
4
ASTM Program Vice-Chair
?
National Institute of Standards & Technology
?
Gaithersburg, MD
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ISBN-10:
0-8031-2884-3
ISBN:
978-0-8031-2884-2
No. of Pages:
897
Publisher:
ASTM International
Publication date:
2001

The Reactor Measurement Systems Laboratory (LSMR) of the CEA/Cadarache, is specialized in the development, design, modeling and manufacturing of neutron detectors, especially miniature fission chambers.

This laboratory can define the characteristics of the detector for any requirements : - type of chamber (cylindrical or plate), - diameter (1.5 mm, 4 mm, 8 mm, …), - nature of fissile product (uranium, plutonium, neptunium, curium,…), - mass of fissile product, and - nature and pressure of gas (argon, helium).

The laboratory has also developed modeling codes and in particular, a new theoretical method to foresee the current-voltage characteristics of a chamber that operates in current mode (sensitivity, saturation plateau).

1.
Bignan
,
G.
and
Guyard
,
J.C.
, “
Sub-miniature Fission Chamber with Tight Feedthrough
”, Patent CEAN∘94-14293,
1994
.
2.
Poujade
,
O.
and
Lebrun
,
A.
, “
Modeling of the Saturation Current of a Fission Chamber taking into Account the Distortion of Electric Field due to Space Charge Effects
”,
Nuclear Instruments and Methods in Physics Research A
 0167-5087,
443
,
1999
, pp. 673–682.
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