用于硬X射线光谱测量的罗斯对滤片堆栈混合谱仪

王子昌; 邵烁婷; 袁红军; 李天贻; 刘雨熙; 刘会亚; 王秋平; 唐桧波; 况龙钰; 胡广月

doi:10.11884/HPLPB202537.250034

用于硬X射线光谱测量的罗斯对滤片堆栈混合谱仪

doi: 10.11884/HPLPB202537.250034

王子昌^1,,
邵烁婷¹,
袁红军²,
李天贻¹,
刘雨熙¹,
刘会亚³,
王秋平²,
唐桧波^1, ,,
况龙钰^4, ,,
胡广月^{1, 3, ,}

1.
中国科学技术大学核科学技术学院，中国科学院近地空间环境重点实验室，合肥 230026
2.
中国科学技术大学核科学技术学院，国家同步辐射实验室，合肥 230029
3.
中国科学院上海光学精密机械研究所，中国科学院超强激光科学卓越创新中心，上海 200031
4.
中国工程物理研究院激光聚变研究中心，四川绵阳 621900

基金项目: 国家自然科学基金项目（批准号：12175230, 11775223, 12205298）、中国科学院非共识和颠覆性项目(批准号：CX2140000042)和统筹推进世界一流大学和一流学科建设专项资金资助项目（批准号：YD2140002006）资助的课题

详细信息

作者简介:
王子昌，wangzichang22@mail.ustc.edu.cn

通讯作者:
唐桧波，tanghb@hit.edu.cn

况龙钰，kuangly0402@sina.co

胡广月，gyhu@ustc.edu.cn。

中图分类号: O434.1
计量
- 文章访问数: 13
- HTML全文浏览量: 7
- PDF下载量: 0
- 被引次数: 0
出版历程
- 收稿日期: 2025-02-25
- 修回日期: 2025-06-17
- 录用日期: 2025-06-04
- 网络出版日期: 2025-07-02

Ross pair-filters stack mixed spectrometer for hard x-ray detection

1.
Colloge of Nuclear Science Technology & CAS Key Laboratory of Geospace Environment, University of Science and Technology of China, Hefei 230026, China
2.
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China
3.
Center for Excellence in Ultra-intense Laser Science (CEULS), Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 200031, China
4.
Laser Fusion Research Center, CAEP, Mianyang 621900, China

摘要

摘要: 罗斯对和滤片堆栈谱仪常被用于探测硬X射线光谱，但滤片堆栈谱仪的结果对预估谱形状十分敏感，而罗斯对只能给出离散的分立谱。发展了一种罗斯对滤片堆栈混合谱仪，结合了传统滤片堆栈谱仪和罗斯对的优点，将传统堆栈谱仪的每一层滤片都换成一对滤片构成的罗斯对，这样可以利用罗斯对测到的离散分立光谱作为预估谱，输入到堆栈通道的解谱程序中求解出整个X射线光谱。数值实验和使用X光机进行的测试都显示，这种罗斯对滤片堆栈混合谱仪相较于传统滤片堆栈谱仪能给出更准确的光谱结构，其紧凑轻便的优势在硬X射线光谱测量中有广泛的应用前景。
- 硬X射线 /
- 光谱诊断 /
- 滤片堆栈 /
- 罗斯对 /
- 蒙特卡罗模拟
Abstract: Ross pair and filters stack spectrometers are commonly used to detect hard X-ray spectrum. The results of filters stack spectrometer are highly sensitive to the profile of pre-estimated spectrum, while Ross pair is limited to discrete spectrum. Here we provide a Ross pair- filters stack mixed spectrometer, which combining the advantages of traditional filter stack spectrometers and Ross pairs. Each layer of the filter in the traditional filters stack spectrometer has been replaced with a Ross filters pair. Thus the discrete spectrum given by Ross pair can be used as the pre-estimated spectrum for the filters stack to solve the entire x-ray spectrum. Numerical and physical experiments using x-ray tube confirm that the present mixed spectrometer can provide more accurate spectral structures compared to traditional filter stack spectrometers. The compact and lightweight advantages make it widely applicable in hard x-ray spectral measurements.
- hard X-ray detect /
- spectral diagnosis /
- filters stack spectrometer /
- Ross pair /
- Monte Carlo simulation

HTML全文

图 1 罗斯对滤片堆栈混合谱仪结构示意图

Figure 1. A diagram of Ross pair-filters stack mixed spectrometer

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图 2 传统罗斯对的结构示意图及其响应函数

Figure 2. A diagram of Ross pair spectrometer and its response function

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图 3 罗斯对滤片堆栈谱仪各个通道的响应函数

Figure 3. Response functions of each channel in Ross pair - filter stack mixed spectrometer

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图 4 钨X光机在100 kV电压下的光谱

Figure 4. Spectrum of tungsten X-ray tube at 100 kV voltage

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图 5 低能X光测谱数值实验中各通道每层IP上的能量沉积

Figure 5. Energy deposition on each IP layer of each channel in low energy x-ray spectral detection

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图 6 低能X光测谱数值实验中由罗斯对通道给出的预估谱

Figure 6. The pre-estimate spectrum obtained from Ross pair channels for low energy x-ray spectral detection

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图 7 低能X光测谱数值实验中的解谱结果

Figure 7. The results of low energy X-ray spectral detection

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图 8 高能X光测谱数值实验的堆栈通道响应函数

Figure 8. Response function of filter stack channel for high energy x-ray spectral detection

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图 9 激光聚变靶丸康普顿照相光源的光谱

Figure 9. Spectrum of Compton radiography light source

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图 10 高能X光测谱数值实验中各通道每层IP上的能量沉积

Figure 10. Energy deposition on each IP layer of each channel in numerical experiment of high energy x-ray spectral detection

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图 11 高能X光测谱数值实验中罗斯对通道给出的预估谱

Figure 11. The pre-estimate spectrum for high energy x-ray spectral detection

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图 12 高能X光测谱数值实验中的解谱结果

Figure 12. The results of high energy x-ray spectral detection

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图 13 罗斯对滤片堆栈混合谱仪和传统罗斯对的灰度图像以及对应的PSL值

Figure 13. The grayscale images and corresponding PSL values obtained by using Ross pair - stack filter mixed spectrometer and traditional Ross pair

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图 14 不同预估计谱配合不同通道的数据的解谱结果

Figure 14. Results of different estimated spectra combined with data from different channels

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表 1 罗斯对滤片堆栈混合谱仪各通道滤片材料和厚度

Table 1. Filter materials and thickness of Ross pair- filter stack mixed spectrometer

No.	material of channel A filters	thickness of channel A filters/μm	material of channel B filters	thickness of channel B filters/μm	material of channel C filters	thickness of channel C filters/μm
1	V	20.99	Ti & Al	29.49 & 20	Al	50
2	Nb	19.93	Cu & Al	46.72 & 20	Ti	100
3	Sn	41	Nb & Al	53.37 & 80	Ti	100
4	Gd	51.20	Sn & Al	94.04 & 276.49	Cu	100
5	Ta	34.96	Gd & Al	102.4 & 355.66	Mo	100
6	Pb	285.52	Ta & Cu	246.48 & 93.44	Ag	100

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表 2 低能X光测谱数值实验混合谱仪和传统堆栈谱仪的测谱准确度

Table 2. Spectral accuracy for low energy x-ray spectral detection

pre-estimate spectrum	Ross pair- filters stack mixed spectrometer	traditional filters stack 1	traditional filters stack 2
Spectral accuracy (sum of squared differences)	9.0059e+10	1.2749e+11	1.1709e+11

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表 3 高能X光测谱数值实验的滤片堆栈通道的滤片材料和厚度

Table 3. Filter material and thickness of filters stacked channel for high energy x-ray spectral detection

No.	material of filters	thickness of filters /μm
1	Al	50
2	Ti	100
3	Ti	100
4	Cu	100
5	Mo	100
6	Ag	100
7	Sn	1000
8	Sn	3000
9	Ta	2000
10	Ta	4000
11	Ta	6000

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表 4 高能X光测谱数值实验中混合谱仪和传统堆栈谱仪的测谱准确度

Table 4. Spectral accuracy for high energy x-ray spectral detection

pre-estimate spectrum	Ross pair- filters stack mixed spectrometer	traditional filters stack 1	traditional filters stack 2
spectral accuracy (sum of squared differences)	3.5253e+9	3.7512e+9	3.7582e+9

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表 5 在钨X光机上的实验中混合谱仪和传统堆栈谱仪的测谱准确度

Table 5. Spectral accuracy for Tungsten X-ray tube spectral detection

pre-estimate spectrum	Ross pair- filters stack mixed spectrometer	traditional Ross pair	traditional filters stack 1	traditional filters stack 2
spectral accuracy (sum of squared differences)	1.1267e+11	1.0822e+11	1.4294e+11	1.6062e+11

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