Potential reduction interior point algorithm unfolding of neutron energy spectrum measured by recoil proton method

Guan-Ying Wang; Ran Han; Xiao-Ping Ouyang; Jin-Cheng He; Jun-Yao Yan

doi:10.1088/1674-1137/41/5/056201

Chinese Physics C> 2017, Vol. 41> Issue(5) : 056201 DOI: 10.1088/1674-1137/41/5/056201

Potential reduction interior point algorithm unfolding of neutron energy spectrum measured by recoil proton method

1.
North China Electric Power University, Beijing 102206, China
2.
North China Electric Power University, Beijing 102206, China
3.
Beijing Institute of Spacecraft Environment Engineering, Beijing 100029, China
4.
Northwest Institute of Nuclear Technology, Xi'an 710024, China

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Abstract：
A reconstruction algorithm for unfolding neutron energy spectra has been developed, based for the first time on the potential reduction interior point algorithm. This algorithm can be easily applied to neutron energy spectrum reconstruction in the recoil proton method. We transform the neutron energy spectrum unfolding problem into a typical nonnegative linear complementarity problem. The recoil proton energy spectrum and response matrix at angles of 0^o and 30^o are generated by the Geant4 simulation toolkit. Several different neutron energy test spectra are also employed. It is found that this unfolding algorithm is stable and provides efficient, accurate results.
- neutron energy spectrum ,
- recoil proton ,
- Geant4 ,
- potential reduction interior point algorithm ,
- unfolding

References

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Guan-Ying Wang, Ran Han, Xiao-Ping Ouyang, Jin-Cheng He and Jun-Yao Yan. Potential reduction interior point algorithm unfolding of neutron energy spectrum measured by recoil proton method[J]. Chinese Physics C, 2017, 41(5): 056201. doi: 10.1088/1674-1137/41/5/056201

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Received: 2016-12-09

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supported by Fundamental Research Funds for Central Universities (2016XS61), and Opening Foundation of State Key Laboratory of Intense Pulsed Radiation Simulation and Effect.

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Potential reduction interior point algorithm unfolding of neutron energy spectrum measured by recoil proton method

Corresponding author: Ran Han,

1. North China Electric Power University, Beijing 102206, China

2. North China Electric Power University, Beijing 102206, China

3. Beijing Institute of Spacecraft Environment Engineering, Beijing 100029, China

4. Northwest Institute of Nuclear Technology, Xi'an 710024, China

Received Date: 2016-12-09

Available Online: 2017-05-05

Fund Project: supported by Fundamental Research Funds for Central Universities (2016XS61), and Opening Foundation of State Key Laboratory of Intense Pulsed Radiation Simulation and Effect.

Abstract: A reconstruction algorithm for unfolding neutron energy spectra has been developed, based for the first time on the potential reduction interior point algorithm. This algorithm can be easily applied to neutron energy spectrum reconstruction in the recoil proton method. We transform the neutron energy spectrum unfolding problem into a typical nonnegative linear complementarity problem. The recoil proton energy spectrum and response matrix at angles of 0^o and 30^o are generated by the Geant4 simulation toolkit. Several different neutron energy test spectra are also employed. It is found that this unfolding algorithm is stable and provides efficient, accurate results.

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Potential reduction interior point algorithm unfolding of neutron energy spectrum measured by recoil proton method

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