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Titolo: Water chemistry in a crack tip under irradiation, (I) - Evaluation of Gamma-ray Energy Deposition in a Crack Tip
Autore: Satoh, T; Furukawa, K; Iinuma, K; Satoh, Y; Uchida, S;
- Indirizzi:
- Tohoku Univ, Grad Sch Engn, Dept Quantum Sci & Energy Engn, Aoba Ku, Sendai, Miyagi 9808579, Japan Tohoku Univ Sendai Miyagi Japan 9808579 Ku, Sendai, Miyagi 9808579, Japan
- Titolo Testata:
- JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY
fascicolo: 9,
volume: 38,
anno: 2001,
pagine: 773 - 779
- SICI:
- 0022-3131(200109)38:9<773:WCIACT>2.0.ZU;2-T
- Fonte:
- ISI
- Lingua:
- ENG
- Keywords:
- irradiation assisted stress corrosion cracking; crack tip; gamma-ray irradiation; absorption energy; water radiolysis; Monte Carlo calculation;
- Tipo documento:
- Article
- Natura:
- Periodico
- Settore Disciplinare:
- Engineering, Computing & Technology
- Citazioni:
- 7
- Recensione:
- Indirizzi per estratti:
- Indirizzo: Uchida, S Tohoku Univ, Grad Sch Engn, Dept Quantum Sci & Energy Engn, AobaKu, 1 Aoba, Sendai, Miyagi 9808579, Japan Tohoku Univ 1 Aoba Sendai MiyagiJapan 9808579 gi 9808579, Japan
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- Citazione:
- T. Satoh et al., "Water chemistry in a crack tip under irradiation, (I) - Evaluation of Gamma-ray Energy Deposition in a Crack Tip", J NUC SCI T, 38(9), 2001, pp. 773-779
Abstract
In order to evaluate crack propagation rate for irradiation assisted stress corrosion cracking (IASCC) of stainless steel, accurate estimation of theconcentrations of radiolytic species in the crack tip water is important. These concentrations are affected by energy deposition in the crack tip water. Concentrations were determined by measurements with thin thermo luminescence dosimeters (TLDs) and calculations based on a Monte Carlo method. Themeasured and the calculated results confirmed that the energy deposition rate in the crack tip water was larger than that in the bulk water. This wascaused by higher back-scattered radiation from the surrounding steel. The energy absorption of the water in the crevice with a 1 mum width was 1.3 times as high as that in the bulk water.
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Documento generato il 23/01/21 alle ore 03:38:10