Numerical optimization of Rhodium Self-Powered Neutron Detector

Qingmin Zhang; Xinxin Liu; Bangjie Deng; Liangzhi Cao; Chuntao Tang

doi:10.1016/j.anucene.2017.12.008

Numerical optimization of Rhodium Self-Powered Neutron Detector

Qingmin Zhang
, Xinxin Liu
, Bangjie Deng
, Liangzhi Cao
, Chuntao Tang

School of Energy and Power Engineering

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Self-Powered Neutron Detector (SPND) has been widely used in reactors to monitor neutron flux due to its adaptability for in-core severe environment. As a typical representative, SPND with Rhodium as its emitter has been modeled in the frame of Geant4, which is good at tracing the history of the particles in simulation and very appropriate for directly simulating SPND's working mechanism. First of all, simulation model has been validated by simulating one existing typical SPND. Then, the performances’ dependences on the detector's dimensions have been studied systematically. Finally, SPND's geometries have been optimized and the suggested optimal design gives a neutron sensitivity of 1.03 × 10⁻¹⁹ A·cm²·s and a ratio of prompt current of 80.22%. Additionally, this work is also helpful to optimize all the SPNDs for customized requirements.

Original language	English
Pages (from-to)	519-525
Number of pages	7
Journal	Annals of Nuclear Energy
Volume	113
DOIs	https://doi.org/10.1016/j.anucene.2017.12.008
State	Published - Mar 2018

Keywords

Delayed current
Direct numerical model
Geant4
Prompt current
Rhodium Self-Powered Neutron Detector

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10.1016/j.anucene.2017.12.008

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title = "Numerical optimization of Rhodium Self-Powered Neutron Detector",

abstract = "Self-Powered Neutron Detector (SPND) has been widely used in reactors to monitor neutron flux due to its adaptability for in-core severe environment. As a typical representative, SPND with Rhodium as its emitter has been modeled in the frame of Geant4, which is good at tracing the history of the particles in simulation and very appropriate for directly simulating SPND's working mechanism. First of all, simulation model has been validated by simulating one existing typical SPND. Then, the performances{\textquoteright} dependences on the detector's dimensions have been studied systematically. Finally, SPND's geometries have been optimized and the suggested optimal design gives a neutron sensitivity of 1.03 × 10−19 A·cm2·s and a ratio of prompt current of 80.22\%. Additionally, this work is also helpful to optimize all the SPNDs for customized requirements.",

keywords = "Delayed current, Direct numerical model, Geant4, Prompt current, Rhodium Self-Powered Neutron Detector",

author = "Qingmin Zhang and Xinxin Liu and Bangjie Deng and Liangzhi Cao and Chuntao Tang",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2018",

month = mar,

doi = "10.1016/j.anucene.2017.12.008",

language = "英语",

volume = "113",

pages = "519--525",

journal = "Annals of Nuclear Energy",

issn = "0306-4549",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Numerical optimization of Rhodium Self-Powered Neutron Detector

AU - Zhang, Qingmin

AU - Liu, Xinxin

AU - Deng, Bangjie

AU - Cao, Liangzhi

AU - Tang, Chuntao

PY - 2018/3

Y1 - 2018/3

N2 - Self-Powered Neutron Detector (SPND) has been widely used in reactors to monitor neutron flux due to its adaptability for in-core severe environment. As a typical representative, SPND with Rhodium as its emitter has been modeled in the frame of Geant4, which is good at tracing the history of the particles in simulation and very appropriate for directly simulating SPND's working mechanism. First of all, simulation model has been validated by simulating one existing typical SPND. Then, the performances’ dependences on the detector's dimensions have been studied systematically. Finally, SPND's geometries have been optimized and the suggested optimal design gives a neutron sensitivity of 1.03 × 10−19 A·cm2·s and a ratio of prompt current of 80.22%. Additionally, this work is also helpful to optimize all the SPNDs for customized requirements.

AB - Self-Powered Neutron Detector (SPND) has been widely used in reactors to monitor neutron flux due to its adaptability for in-core severe environment. As a typical representative, SPND with Rhodium as its emitter has been modeled in the frame of Geant4, which is good at tracing the history of the particles in simulation and very appropriate for directly simulating SPND's working mechanism. First of all, simulation model has been validated by simulating one existing typical SPND. Then, the performances’ dependences on the detector's dimensions have been studied systematically. Finally, SPND's geometries have been optimized and the suggested optimal design gives a neutron sensitivity of 1.03 × 10−19 A·cm2·s and a ratio of prompt current of 80.22%. Additionally, this work is also helpful to optimize all the SPNDs for customized requirements.

KW - Delayed current

KW - Direct numerical model

KW - Geant4

KW - Prompt current

KW - Rhodium Self-Powered Neutron Detector

UR - https://www.scopus.com/pages/publications/85037532870

U2 - 10.1016/j.anucene.2017.12.008

DO - 10.1016/j.anucene.2017.12.008

M3 - 文章

AN - SCOPUS:85037532870

SN - 0306-4549

VL - 113

SP - 519

EP - 525

JO - Annals of Nuclear Energy

JF - Annals of Nuclear Energy

ER -

Numerical optimization of Rhodium Self-Powered Neutron Detector

Abstract

Keywords

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