PKUNIFTY: A neutron imaging facility based on an RFQ accelerator

Yubin Zou; Weiwei Wen; Zhiyu Guo; Yuanrong Lu; Shixiang Peng; Kun Zhu; Xueqing Yan; Shuli Gao; Jie Zhao; Hang Li; Quanfeng Zhou; Haitao Ren; Meng Zhang; Pengnan Lü; Jimei Guo; Guoyou Tang; Dawei Mo; Jiaer Chen

doi:10.1016/j.nima.2011.02.011

PKUNIFTY: A neutron imaging facility based on an RFQ accelerator

Yubin Zou, Weiwei Wen, Zhiyu Guo, Yuanrong Lu, Shixiang Peng, Kun Zhu, Xueqing Yan, Shuli Gao, Jie Zhao, Hang Li, Quanfeng Zhou, Haitao Ren, Meng Zhang, Pengnan Lü, Jimei Guo, Guoyou Tang, Dawei Mo, Jiaer Chen

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

36 Scopus citations

Abstract

A neutron imaging facility, PKUNIFTY, based on a radio frequency quadrupole (RFQ) accelerator-driven compact neutron source, presently under construction at the Peking University, is described. It consists of a deuteron linear accelerator, a neutron targetmoderatorreflector assembly, and a thermal neutron imaging system. Neutrons are generated via the deuteronberyllium reaction with an expected fast-neutron yield of 3×10¹² n/s. The thermal neutron flux on the imaging plane is 5×10⁵ n/cm²/s at a nominal L/D ratio of 50, and the L/D ratio can be selectable over a range of 25200. The corresponding n/γ ratio is close to or higher than 1×10¹⁰ n/cm²/Sv. The field of view is 20 cm×20 cm at 2 m downstream of the collimator entrance aperture where the thermal neutron flux uniformity is better than 7%. The effective Cd ratio can be tuned by using a light chopper and neutron time-of-flight technique without excessive sacrifice of the thermal neutron flux.

Original language	English
Pages (from-to)	62-66
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	651
Issue number	1
DOIs	https://doi.org/10.1016/j.nima.2011.02.011
State	Published - Sep 21 2011
Externally published	Yes

Funding

This work is supported by National Natural Science Foundation of China under the Key Project 10735020, and National Basic Research Program of China under Contract no. 2010CB833106 We acknowledge the National Natural Science Foundation of China and the National Basic Research Program of China for the financial support. The authors also thank Prof. Chun-Keung Loong for his help during writing the paper.

Funders	Funder number
National Natural Science Foundation of China	10735020
National Key Research and Development Program of China	2010CB833106

Keywords

Collimator
Imaging system
Moderator
RFQ accelerator
Thermal neutron radiography

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10.1016/j.nima.2011.02.011

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Zou, Y., Wen, W., Guo, Z., Lu, Y., Peng, S., Zhu, K., Yan, X., Gao, S., Zhao, J., Li, H., Zhou, Q., Ren, H., Zhang, M., Lü, P., Guo, J., Tang, G., Mo, D., & Chen, J. (2011). PKUNIFTY: A neutron imaging facility based on an RFQ accelerator. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 651(1), 62-66. https://doi.org/10.1016/j.nima.2011.02.011

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abstract = "A neutron imaging facility, PKUNIFTY, based on a radio frequency quadrupole (RFQ) accelerator-driven compact neutron source, presently under construction at the Peking University, is described. It consists of a deuteron linear accelerator, a neutron targetmoderatorreflector assembly, and a thermal neutron imaging system. Neutrons are generated via the deuteronberyllium reaction with an expected fast-neutron yield of 3×1012 n/s. The thermal neutron flux on the imaging plane is 5×105 n/cm2/s at a nominal L/D ratio of 50, and the L/D ratio can be selectable over a range of 25200. The corresponding n/γ ratio is close to or higher than 1×1010 n/cm2/Sv. The field of view is 20 cm×20 cm at 2 m downstream of the collimator entrance aperture where the thermal neutron flux uniformity is better than 7%. The effective Cd ratio can be tuned by using a light chopper and neutron time-of-flight technique without excessive sacrifice of the thermal neutron flux.",

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author = "Yubin Zou and Weiwei Wen and Zhiyu Guo and Yuanrong Lu and Shixiang Peng and Kun Zhu and Xueqing Yan and Shuli Gao and Jie Zhao and Hang Li and Quanfeng Zhou and Haitao Ren and Meng Zhang and Pengnan L{\"u} and Jimei Guo and Guoyou Tang and Dawei Mo and Jiaer Chen",

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doi = "10.1016/j.nima.2011.02.011",

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Zou, Y, Wen, W, Guo, Z, Lu, Y, Peng, S, Zhu, K, Yan, X, Gao, S, Zhao, J, Li, H, Zhou, Q, Ren, H, Zhang, M, Lü, P, Guo, J, Tang, G, Mo, D & Chen, J 2011, 'PKUNIFTY: A neutron imaging facility based on an RFQ accelerator', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 651, no. 1, pp. 62-66. https://doi.org/10.1016/j.nima.2011.02.011

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AU - Gao, Shuli

AU - Zhao, Jie

AU - Li, Hang

AU - Zhou, Quanfeng

AU - Ren, Haitao

AU - Zhang, Meng

AU - Lü, Pengnan

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AU - Tang, Guoyou

AU - Mo, Dawei

AU - Chen, Jiaer

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AB - A neutron imaging facility, PKUNIFTY, based on a radio frequency quadrupole (RFQ) accelerator-driven compact neutron source, presently under construction at the Peking University, is described. It consists of a deuteron linear accelerator, a neutron targetmoderatorreflector assembly, and a thermal neutron imaging system. Neutrons are generated via the deuteronberyllium reaction with an expected fast-neutron yield of 3×1012 n/s. The thermal neutron flux on the imaging plane is 5×105 n/cm2/s at a nominal L/D ratio of 50, and the L/D ratio can be selectable over a range of 25200. The corresponding n/γ ratio is close to or higher than 1×1010 n/cm2/Sv. The field of view is 20 cm×20 cm at 2 m downstream of the collimator entrance aperture where the thermal neutron flux uniformity is better than 7%. The effective Cd ratio can be tuned by using a light chopper and neutron time-of-flight technique without excessive sacrifice of the thermal neutron flux.

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PKUNIFTY: A neutron imaging facility based on an RFQ accelerator

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