Coupled stochastic-deterministic method for accelerator-driven subcritical system transient analysis

Zheng Qi; Wu Hongchun; Li Yunzhao; Cao Liangzhi; He Mingtao

doi:10.11884/HPLPB201830.170243

Volume 30 Issue 1

Jan. 2018

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Zheng Qi, Wu Hongchun, Li Yunzhao, et al. Coupled stochastic-deterministic method for accelerator-driven subcritical system transient analysis[J]. High Power Laser and Particle Beams, 2018, 30: 016001. doi: 10.11884/HPLPB201830.170243

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Zheng Qi, Wu Hongchun, Li Yunzhao, et al. Coupled stochastic-deterministic method for accelerator-driven subcritical system transient analysis[J]. High Power Laser and Particle Beams, 2018, 30: 016001. doi: 10.11884/HPLPB201830.170243

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Coupled stochastic-deterministic method for accelerator-driven subcritical system transient analysis

doi: 10.11884/HPLPB201830.170243

School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China

Received Date: 2017-05-27
Rev Recd Date: 2017-08-08
Publish Date: 2018-01-15

Abstract

Abstract

In accelerator-driven subcritical system (ADS), the transient characteristic is quite different from that of traditional critical system due to its strong external neutron source and its fuel composition for transmutation. This paper presents a coupled stochastic-deterministic method for analysing the transient characteristic of ADS. After comparing various reactor transient calculation methods, predictor-corrector improved quasi-static method was chosen to handle the time variable of neutron space-time kinetics equation. Considering the specific neutron spectrum, Monte Carlo method was used to handle the corresponding spatial, angle and energy variables. The main problem encountered is the Monte Carlo iteration instability for slightly subcritical system. Numerical results demonstrates the effectiveness of the new method.
- accelerator-driven subcritical system,
- transient analysis,
- Monte Carlo method,
- predictor-corrector improved quasi-static method,
- coupling method

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References(15)

References

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