Equivalentmass thermal motion model of neutron transport in water at different temperatures

Zhu Jinhui; Zhuo Jun; Tao Yinglong; Wei Yuan; Huang Liuxing

doi:10.3788/HPLPB20122408.1985

Volume 24 Issue 08

Nov. 2012

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Zhu Jinhui, Zhuo Jun, Tao Yinglong, et al. Equivalentmass thermal motion model of neutron transport in water at different temperatures[J]. High Power Laser and Particle Beams, 2012, 24: 1985-1989. doi: 10.3788/HPLPB20122408.1985

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Zhu Jinhui, Zhuo Jun, Tao Yinglong, et al. Equivalentmass thermal motion model of neutron transport in water at different temperatures[J]. High Power Laser and Particle Beams, 2012, 24: 1985-1989. doi: 10.3788/HPLPB20122408.1985

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Equivalentmass thermal motion model of neutron transport in water at different temperatures

doi: 10.3788/HPLPB20122408.1985

1.
Northwest Institute of Nuclear Technology,Xi’an 710024,China

Received Date: 2011-10-12
Publish Date: 2012-08-15

Abstract

Abstract

In the Monte Carlo simulation, the S(,) model can only be used in some given temperature. The paper proposes the equivalent mass thermal motion model of neutron transport in water at different temperatures. The free gas thermal motion model is analyzed. Different equivalent masses are used to correct the neutron elastic scattering simulation of hydrogen in water, and the optimal equivalent mass of hydrogen in water at five different temperatures is given by comparing the result of the neutron flow through water layer with the S(,) model. According to the data of the five different temperature points, the formula of the optimal equivalent mass varying with temperature is fitted. The results of the equivalent mass thermal motion model are in accord with those of the S(,) model. The equivalent mass thermal motion model breaks the limitation of the S(,) model, and can deal with the neutron transport problems in water at arbitrary temperature between 300-800 K.
- montecarlosimulation,
- neutrontransport,
- equivalentmassthermalmotionmodel,
- hydrogen

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