Testing of the Ultraviolet Response of Space Low-energy Ion Detector

ZHANG Wei; SHI Yufeng; SHAN Xu; LI Yiren; HAO Xinjun; MIAO Bin; XU Chunkai; CHEN Xiangjun; LU Quanming; WANG Yuming; ZHANG Tielong

doi:10.11804/NuclPhysRev.32.03.358

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Article Navigation > Nuclear Physics Review > 2015 > 32(3): 358-362

ZHANG Wei, SHI Yufeng, SHAN Xu, LI Yiren, HAO Xinjun, MIAO Bin, XU Chunkai, CHEN Xiangjun, LU Quanming, WANG Yuming, ZHANG Tielong. Testing of the Ultraviolet Response of Space Low-energy Ion Detector[J]. Nuclear Physics Review, 2015, 32(3): 358-362. doi: 10.11804/NuclPhysRev.32.03.358

Citation:

ZHANG Wei, SHI Yufeng, SHAN Xu, LI Yiren, HAO Xinjun, MIAO Bin, XU Chunkai, CHEN Xiangjun, LU Quanming, WANG Yuming, ZHANG Tielong. Testing of the Ultraviolet Response of Space Low-energy Ion Detector[J]. Nuclear Physics Review, 2015, 32(3): 358-362. doi: 10.11804/NuclPhysRev.32.03.358

Testing of the Ultraviolet Response of Space Low-energy Ion Detector

doi: 10.11804/NuclPhysRev.32.03.358

Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China;
Key Laboratory of Geospace Environment, Chinese Academy of Sciences, Hefei 230026, China;

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2015-09-20

Abstract

In the detection of space ions, solar ultraviolet (UV) can also enter the detector and generate a noise to the signal of ions. A testing system on the ground is built to test the UV response of detector. Experiments on a home-made principle prototype of space low-energy ion detector are carried out by using this system. The results show that the response of detector to the UV entering the electrostatic analyzer along the horizontal direction can be negligible and counts of the response to the UV along a bias direction are about 10² ~10³ s^−1. According to the measured results, the UV suppression ratio is estimated to be about 10−8 and the inuence of solar UV on the detection of space low-energy ions such as proton and alpha particle has been analyzed. For proton, the inuence is insigni cant due to its high ux. But for the low ux alpha particle, the inuence of solar UV is noticeable and further rejection is needed. In addition, this system can also be applied to test the UV response of other space particle detectors.
- space ion detector,
- solar ultraviolet response,
- testing system on the ground
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Testing of the Ultraviolet Response of Space Low-energy Ion Detector

doi: 10.11804/NuclPhysRev.32.03.358

Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China;

Key Laboratory of Geospace Environment, Chinese Academy of Sciences, Hefei 230026, China;

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2015-09-20

Key words:

Abstract: In the detection of space ions, solar ultraviolet (UV) can also enter the detector and generate a noise to the signal of ions. A testing system on the ground is built to test the UV response of detector. Experiments on a home-made principle prototype of space low-energy ion detector are carried out by using this system. The results show that the response of detector to the UV entering the electrostatic analyzer along the horizontal direction can be negligible and counts of the response to the UV along a bias direction are about 10² ~10³ s^−1. According to the measured results, the UV suppression ratio is estimated to be about 10−8 and the inuence of solar UV on the detection of space low-energy ions such as proton and alpha particle has been analyzed. For proton, the inuence is insigni cant due to its high ux. But for the low ux alpha particle, the inuence of solar UV is noticeable and further rejection is needed. In addition, this system can also be applied to test the UV response of other space particle detectors.

Citation:

ZHANG Wei, SHI Yufeng, SHAN Xu, LI Yiren, HAO Xinjun, MIAO Bin, XU Chunkai, CHEN Xiangjun, LU Quanming, WANG Yuming, ZHANG Tielong. Testing of the Ultraviolet Response of Space Low-energy Ion Detector[J]. Nuclear Physics Review, 2015, 32(3): 358-362. doi: 10.11804/NuclPhysRev.32.03.358