Efficiency calibration of solar X-ray detector onboard MSS-1B satellite

Lipeng FAN; Siming GUO; Yongqiang SHI; Jianwu CHEN; Fuchang ZUO; Xing ZHOU; Shikui HUANG; Ziyao SHU; Kaiyue GUO; Xiaoyu QIE; Tao YU; Jinjie WU

doi:10.11889/j.0253-3219.2023.hjs.46.090401

NUCLEAR TECHNIQUES, Volume. 46, Issue 9, 090401(2023)

Efficiency calibration of solar X-ray detector onboard MSS-1B satellite

Lipeng FAN^1,2, Siming GUO^2、*, Yongqiang SHI³, Jianwu CHEN³, Fuchang ZUO³, Xing ZHOU², Shikui HUANG², Ziyao SHU², Kaiyue GUO², Xiaoyu QIE^1,2, Tao YU², and Jinjie WU²

Author Affiliations

¹Hebei University of Science and Technology, Shijiazhuang 050091, China

²National Institute of Metrology, Beijing 100029, China

³Beijing Institute of Control Engineering, Beijing 100190, China

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Figures & Tables(15)

Fig. 1. Schematic of the single-crystal monochromatic X-ray detector ground calibration facility

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Fig. 2. Schematic of the double-crystal monochromatic X-ray detector ground calibration facility

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Fig. 3. Photograph of the monochromatic X-ray ground calibration facility (a), photograph of the SXD calibration site (b)

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Fig. 4. Schematic diagram of the SXD

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Fig. 5. Detection efficiency curve of HPGe detector

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Fig. 6. Diagram of geometric model of the SDD

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Fig. 7. Diagram of geometric model of the CZT

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Fig. 8. Monochromatic energy spectra measured using HPGe detector

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Fig. 9. Detection efficiency curve of SDD-1

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Fig. 10. Detection efficiency curve of CZT-1

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Table 1. Characteristics of the monochromators

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Table 1. Characteristics of the monochromators

	单晶单色仪 Single-crystal monochromator	双晶单色仪 Double-crystal monochromator
晶体 Crystal	LiF(200), LiF(220), LiF(420)	Si(220), Si(551)
能量范围 Energy range	5~40 keV	20~161 keV
布拉格角度 Bragg angle	4°~25°	2.5°~7.5°
单色性 Monochromaticity	ΔE/E < 3%@10 keV	ΔE/E < 2%@60 keV
单色光 Monochromatic light	> 90%	> 90%
通量 Flux	> 5 000 cm^-2∙s^-1	> 2 000 cm^-2∙s^-1
调节步长 Adjustable step	< 0.2 keV	< 0.2 keV
光斑尺寸 Spot size	1~10 mm	1~10 mm

Table 2. Measurement results for SDD-1

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Table 2. Measurement results for SDD-1

能量 Energy / keV	SDD-1实验效率 Experimental efficiency of SDD-1 / %	SDD-1模拟效率 Simulation efficiency of SDD-1 / %	相对误差 Relative error / %
8	94.44	97.23	2.87
12	88.51	91.12	2.86
16	64.71	62.47	-3.59
20	38.53	39.82	3.24

Table 3. Measurement results for CZT-1

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Table 3. Measurement results for CZT-1

能量 Energy / keV	A点实验效率 Experimental efficiency of A / %	B点实验效率 Experimental efficiency of B / %	C点实验效率 Experimental efficiency of C / %	D点实验效率 Experimental efficiency of D / %	平均实验效率 Average experimental efficiency / %	CZT-1模拟效率 Simulation efficiency of CZT-1 / %	相对误差 Relative error / %
25	55.10	55.91	54.44	55.01	55.12	57.02	3.33
50	83.46	83.64	83.55	83.34	83.50	81.26	-2.75
80	90.98	92.51	94.92	94.61	93.26	88.78	-5.04
120	77.54	81.07	78.03	78.60	78.81	87.13	9.54

Table 4. Uncertainty of the flow intensity measurement

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Table 4. Uncertainty of the flow intensity measurement

项目 Item	相对不确定度 Relative uncertainty / %
能谱计数 Energy spectrum counting	0.3
探测效率 Detection efficiency	1.8
探测面积 Detection area	0.5
探测器定位 Detector location	0.2
合成相对标准不确定度 Combined relative standard uncertainty	1.9
相对扩展不确定度 Relative expanded uncertainty	3.8(k=2)

Table 5. Uncertainty of the Monte Carlo simulation results
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Table 5. Uncertainty of the Monte Carlo simulation results
能量
Energy / keV
统计涨落
Counting statistics / %
相对不确定度
Relative uncertainty / %
8 0.02 0.02
12 0.04 0.04
16 0.08 0.08
20 0.12 0.12
25 0.08 0.08
50 0.05 0.05
80 0.03 0.03
120 0.04 0.04

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Lipeng FAN, Siming GUO, Yongqiang SHI, Jianwu CHEN, Fuchang ZUO, Xing ZHOU, Shikui HUANG, Ziyao SHU, Kaiyue GUO, Xiaoyu QIE, Tao YU, Jinjie WU. Efficiency calibration of solar X-ray detector onboard MSS-1B satellite[J]. NUCLEAR TECHNIQUES, 2023, 46(9): 090401

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