基于ORIGEN2的西安脉冲堆堆芯核素存量自动跟踪程序

Abstract

Abstract: For dealing with the problems like power operation history collection in reactor source term study, an isotope inventory auto-tracking method based upon ORIGEN2 for Xi’an Pulsed Reactor (XAPR) was proposed. The technical measures, such as revision on ORIGEN2 built-in cross sections, creation of interval power-averaging models for XAPR, were detailed in this paper, and a demonstration code, called ORBITER (ORIGEN2-Based Inventory TrackER), was developed to verify the method. By checking out the results of ORBITER with those yielded traditionally by ORIGEN2, it was proved that the method was technically feasible and precisely reliable. For the included benchmark example with 66.5 MW·d/tU burn-up, ⁸⁵Kr among the selected three typical isotopes was found to have the greatest deviation of 2.00%, and the inaccuracy was produced by the differentiating process of calculation case, which contributed to the major deviation. By employing computer automation, the new method could decrease the work load and time consumption dramatically, and increase the source-term data acquiring efficiency remarkably.

Key words: isotope inventory, code development, calculation, automation, ORIGEN2

CLC Number:

TL364

YANG Ning, TANG Xiuhuan, ZHU Lei. ORIGEN2-based isotope inventory auto-trackingcode for Xi'an Pulsed Reactor[J].RADIATION PROTECTION, 2018, 38(3): 234-239.

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ORIGEN2-based isotope inventory auto-trackingcode for Xi'an Pulsed Reactor

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