查詢結果分析
來源資料
頁籤選單縮合
題 名 | Criticality Studies of a Natural Uranium Fueled, Light Water Cooled and Heavy Water Moderated Nuclear Reactors=以天然鈾為燃料、輕水為冷卻劑及重水為緩和劑之核子反應器之臨界臨究 |
---|---|
作 者 | Malkawi,S. R.; Aslam; Ahmad,Nasir; | 書刊名 | 核子科學 |
卷 期 | 35:5 1998.10[民87.10] |
頁 次 | 頁369-378 |
分類號 | 449.2 |
關鍵詞 | 天然鈾; 燃料; 輕水; 冷卻劑; 重水; 緩和劑; 核子反應器; 臨界; Criticality; Nuclear reactor; Computer code; |
語 文 | 英文(English) |
英文摘要 | The criticaligy of natural uranium fueled, light water cooled, heavy water moderated and graphite reflected reactor was studied using standard computer codes WIMS-D/4 and CITATION. The effects of the presence of central thimble in the reactor core and presence of impurities in fuel, clad and structural materials were also studied. The available excess reactivity in fresh clean core was found to be 44.3 mk when the loaded number of fuel rods were 192, moderator channel width was 6.04 cm and 85 cm thick annular graphite reflector was present. The variation in infinite multiplication factor as function of D �� O moderator channel width and D �� O purity were studied. It was found that the NRX/CIR reactors were under moderated systems. The calculated neutron flux distribution confirmed that the neutron spectrum in NRX/CIR systems was hard. |
本系統中英文摘要資訊取自各篇刊載內容。