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ASTM Selected Technical Papers
Reactor Dosimetry: 14th International Symposium
By
David W. Vehar
David W. Vehar
JAI Guest Editor
1
Sandia National Laboratories
,
Albuquerque, New Mexico,
US
Search for other works by this author on:
Douglas L. Selby
Douglas L. Selby
JAI Guest Editor
2
Oak Ridge National Laboratory
,
Oak Ridge, TN,
US
Search for other works by this author on:
Mary Helen Sparks
Mary Helen Sparks
JAI Guest Editor
3
White Sands Missile Range
,
White Sands, NM,
US
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ISBN:
978-0-8031-7536-5
No. of Pages:
794
Publisher:
ASTM International
Publication date:
2012

The activities of nuclides produced via the neutron irradiation of reactor pressure vessel (RPV) steel are used to validate respective fluence calculations. Niobium, nickel, and technetium isotopes from RPV trepans of the decommissioned NPP Greifswald (VVER-440) have been analyzed. The activities were determined by TRAMO (Monte-Carlo) fluence calculations, newly applying 640 neutron-energy groups and ENDF/B7 data. Relative to earlier results, fluences up to 20 % higher have been computed, leading to somewhat better agreement between measurement and calculation, particularly in the case of Tc-99.

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