Radiation hardening in BWR core shrouds: Relative roles of neutron and gamma irradiation

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We present a calculation of the displacement rates and freely migrating defect production caused by neutron and gamma irradiation and their roles on causing irradiation hardening in a BWR core shroud. We find that the neutron displacement rate is much higher than the gamma displacement rate, but that the freely-migrating defects produced by gamma irradiation are significant compared to those produced by neutrons. We evaluate the influence of gamma and neutron irradiation on hardening using a point defect clustering model. We find that the influence of gamma irradiation on radiation hardening in the core shroud is small compared to that for neutron irradiation.

Original languageEnglish (US)
Pages (from-to)607-616
Number of pages10
JournalASTM Special Technical Publication
Issue number1398
StatePublished - 2001

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Radiation hardening
Neutrons
Irradiation
Neutron irradiation
Hardening
Defects
Point defects

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

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abstract = "We present a calculation of the displacement rates and freely migrating defect production caused by neutron and gamma irradiation and their roles on causing irradiation hardening in a BWR core shroud. We find that the neutron displacement rate is much higher than the gamma displacement rate, but that the freely-migrating defects produced by gamma irradiation are significant compared to those produced by neutrons. We evaluate the influence of gamma and neutron irradiation on hardening using a point defect clustering model. We find that the influence of gamma irradiation on radiation hardening in the core shroud is small compared to that for neutron irradiation.",
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Radiation hardening in BWR core shrouds : Relative roles of neutron and gamma irradiation. / Kwon, Jun; Motta, Arthur Thompson.

In: ASTM Special Technical Publication, No. 1398, 2001, p. 607-616.

Research output: Contribution to journalArticle

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AU - Kwon, Jun

AU - Motta, Arthur Thompson

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N2 - We present a calculation of the displacement rates and freely migrating defect production caused by neutron and gamma irradiation and their roles on causing irradiation hardening in a BWR core shroud. We find that the neutron displacement rate is much higher than the gamma displacement rate, but that the freely-migrating defects produced by gamma irradiation are significant compared to those produced by neutrons. We evaluate the influence of gamma and neutron irradiation on hardening using a point defect clustering model. We find that the influence of gamma irradiation on radiation hardening in the core shroud is small compared to that for neutron irradiation.

AB - We present a calculation of the displacement rates and freely migrating defect production caused by neutron and gamma irradiation and their roles on causing irradiation hardening in a BWR core shroud. We find that the neutron displacement rate is much higher than the gamma displacement rate, but that the freely-migrating defects produced by gamma irradiation are significant compared to those produced by neutrons. We evaluate the influence of gamma and neutron irradiation on hardening using a point defect clustering model. We find that the influence of gamma irradiation on radiation hardening in the core shroud is small compared to that for neutron irradiation.

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JO - ASTM Special Technical Publication

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