Estimating the four-factor product (ε p PfnlPtnl) for the accurate calculation of xenon and samarium reactivities in the Syrian Miniature Neutron Source Reactor

被引:2
|
作者
Khattab, K. [1 ]
机构
[1] Atom Energy Comiss, Damascus, Syria
关键词
Reactor Operation; Fission Neutron; Reactor Shutdown; Group Constant; Reactor Operating Time;
D O I
10.1007/s10967-006-6812-5
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The modified Xe-135 equilibrium reactivity in the Syrian Miniature Neutron Source Reactor (MNSR) was calculated first by using the WIMSD4 and CITATION codes to estimate the four-factor product (epsilon p P-fnl P-tnl ). Then, precise calculations of Xe-135 and Sm-149 concentrations and reactivities were carried out and compared during the reactor operation time and after shutdown. It was found that the Xe-135 and Sm-149 reactivities did not reach their equilibrium reactivities during the daily operating time of the reactor. The Sm-149 reactivities could be neglected compared to Xe-135 reactivities during the reactor operating time and after shutdown.
引用
收藏
页码:127 / 133
页数:7
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