Effect of Neutron Spectrum on Effective Cross Section in Evaluation of Residual Radioactive Inventory in Nuclear Reactors.
-
- EZURE Hideo
- NAIS, Nippon Advanced Information Service
書誌事項
- タイトル別名
-
- Effect of Neutron Spectrum on Effective
この論文をさがす
抄録
The method of shielding calculations, and production and decay of nuclides being employed for estimate of radioactive inventory frequently assumes the Maxwellian distribution (MD) for thermal neutron spectrum and 1/E for epithermal neutron spectrum. Actually each spectrum deviates largely from the MD and 1/E spectrum respectively in reactor pressure vessel (RPV) and biological shielding concrete (BSC). These assumption then leads activation calculation for residual radioactivity to noticeable error. In this paper it is studied how the deviation of the neutron spectrum affects activation, effective thermal neutron cross section and effective epithermal neutron cross section. It has been proved that they change according to position in the RPV, BSC and other reactor components. Therefore, neutron energy group structure is required to be so fine as to define neutron spectrum accurately.
収録刊行物
-
- Journal of Nuclear Science and Technology(日本原子力学会英文論文誌)
-
Journal of Nuclear Science and Technology(日本原子力学会英文論文誌) 35 (4), 255-263, 1998
一般社団法人 日本原子力学会
- Tweet
キーワード
詳細情報 詳細情報について
-
- CRID
- 1390282679073027200
-
- NII論文ID
- 10002079226
-
- NII書誌ID
- AA00703720
-
- COI
- 1:CAS:528:DyaK1cXjtlKktb8%3D
-
- ISSN
- 18811248
- 00223131
-
- NDL書誌ID
- 4462473
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可