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Title:
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Neutron metrology in the HFR: stainless steel compact tension and tensile specimens irradiation experiment R312-01/02 (SINTEX): evaluation report
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Author(s):
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Published by:
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Publication date:
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ECN
NUCLEAIR
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1998
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ECN report number:
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Document type:
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ECN-I--98-014
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Other
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Number of pages:
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Full text:
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62
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Download PDF
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Abstract:
Within the framework of their programme for analyses ofLWR-vessel behaviour after 30-50 years operation, ECN is investigating the
irradiation effects on austenitic stainless steel pressure vessel
(PV)-cladding materials. As part of this programme an irradiation campaign
was performed in the HFR in Petten, Netherlands, consisting of two separate
irradiations of compact tension and tensile specimens at a nominal
temperature of about 295C loaded in two similar specimen holders up to
target dose levels of 0.1 dpa (SINEXT-01; R312-01) and 0.05 dpa (SINEXT-02;
R312-02) respectively. This report presents the final neutron metrology
results obtained from activation monitor sets situated in both specimen
holders, including detailed information concerning an estimation of the dose
received by each specimen separately and their temperature during
irradiation. The total number of displacements per atom (dpa), the generated
helium content and the activity values after irradiation for several waiting
times are also given for each specimen. The main results of the thermal and
fast neutron fluence measurements indicate that the obtained damage levels in
the specimens vary from 0.066 to 0.098 dpa for R312-01 and from 0.032 to
0.062 dpa for R312-02. 23 refs.
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