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Your search keyword '"Lu, FangJun"' showing total 8 results
Start Over Author "Lu, FangJun" Journal experimental astronomy
8 results on '"Lu, FangJun"'

1. Design and characterization of a 90 GHz CMB TES bolometer

Author

Xu, Yu, primary, Li, Zhengwei, additional, Li, Yongping, additional, Zhang, Yifei, additional, Li, Xufang, additional, Lu, Xuefeng, additional, Liao, Guofu, additional, Li, Qingchen, additional, Lu, Fangjun, additional, Zhang, Laiyu, additional, Gu, Yudong, additional, Liu, Zhouhui, additional, Shu, Shibo, additional, Chang, Zhi, additional, Wang, Guofeng, additional, Zhang, Yongjie, additional, Gao, He, additional, Zhang, Aimei, additional, Yan, Daikang, additional, and Liu, Congzhan, additional

Published
2024
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2. Characterization of the eXTP-LAD collimators.

Author

Zhao, Zijian, Luo, Tao, Ceraudo, Francesco, Feroci, Marco, Li, Longhui, Wang, Jian, Xu, Yupeng, Liu, Hongwei, Zhu, Yuxuan, Zhang, Yifan, Hou, Dongjie, Yang, Xiongtao, He, Huilin, Zhang, Shuang-Nan, Lu, Fangjun, and Wang, Yusa

Abstract

The enhanced X-ray Timing and Polarimetry mission (eXTP) is a next-generation flagship X-ray astronomy satellite currently in phase-B study. The large Area Detector (LAD) on board eXTP contains 40 modules, each consisting of a set of 4 × 4 large area SDDs and 4 × 4 collimators, and has a designed effective area of 3.0 m 2 at 8 keV and a Field of View (FoV) of 1 ∘ . To achieve such a large effective area, the collimator’s Open Area Ratio (OAR) should be greater than 70%. In this paper, we introduce the measurement methods used to determine the OAR and the rocking curve (angular response) of the LAD collimator at the 100-m X-ray Test Facility (100XF) of the Institute of High Energy Physics (IHEP) in Beijing, and report the results of the collimators manufactured under different conditions. The measured OARs of the collimators are usually smaller than the theoretical values by a few percent, which is due to the non-uniformity and irregularity of the pores. The measured rocking curves are usually broader than the theoretical triangular curves, and the lower the energy of the incident X-ray the broader the rocking curve. This broadening of the rocking curve is the result of reflection on the inner wall of the pores. Our results also show that increasing the etching time in the manufacturing of the collimators can increase the OARs but does not change significantly the shape of the rocking curves. [ABSTRACT FROM AUTHOR]

Published
2024
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3. Design and performance of the focal plane camera for FXT onboard the Einstein Probe satellite

Author

Cui, Weiwei, primary, Wang, Hao, additional, Zhao, Xiaofan, additional, Zhang, Juan, additional, Meidinger, Norbert, additional, Yang, Yanji, additional, Keil, Isabell, additional, Zhang, Ziliang, additional, Huo, Jia, additional, Wang, Juan, additional, Song, Zeyu, additional, Lu, Fangjun, additional, Ma, Jia, additional, Wang, Yusa, additional, Xu, Jingjing, additional, Zhu, Yuxuan, additional, Li, Tianming, additional, Li, Wei, additional, Luo, Laidan, additional, Han, Dawei, additional, Zhao, Zijian, additional, Hou, Dongjie, additional, Yang, Xiongtao, additional, Geng, Haoyang, additional, Li, Shuo, additional, Chen, HouLei, additional, Tang, QingJun, additional, Chen, Yehai, additional, and Chen, Yong, additional

Published
2023
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4. Design and testing of the Optics for FXT onboard EP satellite

Author

Yang, Yanji, primary, Wang, Yusa, additional, Han, Dawei, additional, Wang, Juan, additional, Cui, Weiwei, additional, Zhu, Yuxuan, additional, Cong, Min, additional, Ma, Jia, additional, Zhao, Zijian, additional, Hou, Dongjie, additional, Yang, Xiongtao, additional, Chen, Can, additional, Lu, Bing, additional, Lv, He, additional, Sun, Wenxin, additional, Zhang, Jiawei, additional, Yu, Ke, additional, Wang, Shaohuai, additional, Liu, Dongxu, additional, Zhang, Qian, additional, Bi, Xiyan, additional, Lu, Fangjun, additional, Friedrich, Peter, additional, Eder, Josef, additional, Hartmann, Katinka, additional, Burwitz, Vadim, additional, Keereman, Arnoud, additional, Santovincenzo, Andrea, additional, Vernani, Dervis, additional, Bianucci, Giovanni, additional, Valsecch, Giuseppe, additional, Sheng, Lizhi, additional, Yan, Yongqing, additional, Qiang, Pengfei, additional, Wang, Bo, additional, Wang, Langping, additional, Wang, Dianlong, additional, Ding, Fei, additional, Wang, Lei, additional, Cheng, Junsheng, additional, and Chen, Yong, additional

Published
2023
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5. The structural design and thermo-mechanical performance of the FXT for the EP mission

Author

Wang, Juan, primary, Eder, Josef, additional, Ma, Jia, additional, Yang, YanJi, additional, Cui, WeiWei, additional, Yang, XiongTao, additional, Duan, XuLiang, additional, Feng, JianChao, additional, Zhang, XiaoFeng, additional, Lu, Bing, additional, Lv, He, additional, Sun, WenXin, additional, Lu, FangJun, additional, Han, DaWei, additional, Wang, YuSa, additional, Chen, Tianxiang, additional, Zhang, Qian, additional, Bi, Xiyan, additional, Li, DongTai, additional, Zhang, JiaWei, additional, Friedrich, Peter, additional, Hartmann, Katinka, additional, Keereman, Arnoud, additional, Santovincenzo, Andrea, additional, Vernani, Dervis, additional, Bianucci, Giovanni, additional, Valsecchi, Giuseppe, additional, Tang, QingJun, additional, Chen, HouLei, additional, and Chen, Yong, additional

Published
2023
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6. The 100-m X-ray test facility at IHEP

Author

Wang, Yusa, primary, Zhao, Zijian, additional, Hou, Dongjie, additional, Yang, Xiongtao, additional, Chen, Can, additional, Li, Xinqiao, additional, Zhu, Yuxuan, additional, Zhao, Xiaofan, additional, Ma, Jia, additional, Xu, He, additional, Chen, Yupeng, additional, Wang, Guofeng, additional, Lu, Fangjun, additional, Zhang, Shuangnan, additional, Zhang, Shu, additional, Chen, Yong, additional, and Xu, Yupeng, additional

Published
2022
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7. The 100-m X-ray test facility at IHEP.

Author

Wang, Yusa, Zhao, Zijian, Hou, Dongjie, Yang, Xiongtao, Chen, Can, Li, Xinqiao, Zhu, Yuxuan, Zhao, Xiaofan, Ma, Jia, Xu, He, Chen, Yupeng, Wang, Guofeng, Lu, Fangjun, Zhang, Shuangnan, Zhang, Shu, Chen, Yong, and Xu, Yupeng

Subjects
PARTICLE physics, TESTING laboratories, VACUUM tubes, X-rays, ELECTROMAGNETIC waves, POLARIMETRY
Abstract

The 100-m X-ray Test Facility of the Institute of High Energy Physics (IHEP) was initially proposed in 2012 for the test and calibration of the X-ray detectors of the Hard X-ray Modulation Telescope (HXMT) with the capability to support future X-ray missions. The large instrument chamber connected with a long vacuum tube can accommodate the X-ray mirror, focal plane detector and other instruments. The X-ray sources are installed at the other end of the vacuum tube with a distance of 105 m, which can provide an almost parallel X-ray beam covering 0.2 ∼ 60 keV energy band. The X-ray mirror modules of the Einstein Probe (EP) and the enhanced X-ray Timing and Polarimetry mission (eXTP) and payload of the Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM) have been tested and calibrated with this facility. It has been also used to characterize the focal plane camera and aluminum filter used on the Einstein Probe. In this paper, we will introduce the overall configuration and capability of the facility, and give a brief introduction of some calibration results performed with this facility. [ABSTRACT FROM AUTHOR]

Published
2023
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