便携式微束X射线荧光谱仪的研发

段泽明; 刘俊; 姜其立; 潘秋丽; 李融武; 程琳

doi:10.7538/yzk.2018.youxian.0164

便携式微束X射线荧光谱仪的研发

段泽明^1,2,
刘俊^1,2,
姜其立^1,2,
潘秋丽^1,2,
李融武^1,2,
程琳^1,2,*

1.
北京师范大学核科学与技术学院射线束技术教育部重点实验室,北京100875
2.
北京市辐射中心,北京100875

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- 刊出日期: 2018-12-19

Development of Portable Micro-X-ray Fluorescence Spectrometer

DUAN Zeming^1,2,
LIU Jun^1,2,
JIANG Qili^1,2,
PAN Qiuli^1,2,
LI Rongwu^1,2,
CHENG Lin^1,2,*

1.
Key Laboratory of Beam Technology of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
2.
Beijing Radiation Center, Beijing 100875, China

摘要

摘要: 研制了便携式微束X射线荧光谱仪，并对其硬件、软件和性能等特征进行了分析。该谱仪应用激光位移传感器实时检测样品测量点到透镜出端之间的距离并自动调节该距离的方法，来解决考古样品表面不平整或弧度而造成的照射样品X射线束斑变化的问题，从而保证X射线照射光斑大小不变。为验证谱仪的可靠性，采用该谱仪测量了表面高度差接近5 mm的古陶瓷样品微区的釉彩层元素的分布。分析结果表明，激光位移传感器能有效减少由于样品表面不平整或弧度带来的测量误差。此外，使用本谱仪分析了5角硬币表面4 mm×4 mm的区域，经过数据处理后得到Cu、Sn等元素的分布及其合金相的分布，表明该谱仪不仅可进行微区能量色散X射线荧光分析（μ-EDXRF），同时还可进行微区能量色散X射线衍射分析（μ-EDXRD）。
- 毛细管X光透镜 ,
- X射线荧光谱仪 ,
- 激光位移传感器 ,
- 古陶瓷 ,
- 能量色散X射线衍射
Abstract: The portable micro-X-ray fluorescence spectrometer was developed and its hardware, software and performances were analyzed in this paper. In this spectrometer, the distance between the irradiation spot of sample and exit of polycapillary X-ray optics was automatically controlled by laser displacement sensor (LDS). By this way, the sizes of focused X-ray spot keep constants in order to decrease the errors caused by irregular or curving surface of archaeological object. In order to test the feasibilities of this spectrometer, the elemental mappings on the irregular colored glaze of a piece of ancient porcelain whose height difference is nearly 5 mm were scanned by portable micro-X-ray fluorescence spectrometer. The experimental results show that LDS can effectively reduce measurement errors caused by irregularity or curvature of sample surface. In the same time, an area with a size of 4 mm×4 mm on the RMB 5 Jiao coin’s surface was measured by the spectrometer, and the distributions of Cu, Sn and their alloys’ crystal phases were got after data processing. It indicates that this spectrometer not only can do micro energy dispersion X-ray fluorescence analysis (μ-EDXRF), but also can do micro energy dispersion X-ray diffraction analysis (μ-EDXRD).
- polycapillary X-ray optics ,
- X-ray fluorescence spectrometer ,
- laser displacement sensor ,
- ancient porcelain ,
- energy dispersion X-ray diffraction

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参考文献(15)

[1]	LIN C, LI M, YOUSHI K, et al. The study of chemical composition and elemental mappings of colored over-glaze porcelain fired in Qing Dynasty by micro-X-ray fluorescence[J]. Nuclear Instruments and Methods in Physics Research Section B, 2011, 269(3): 239-243.
[2]	LACLAVETINE K, AGER F J, ARQUILLO J, et al. Characterization of the new mobile confocal micro X-ray fluorescence (CXRF) system for in situ, non-destructive cultural heritage analysis at the CNA: μXRF-CONCHA[J]. Microchemical Journal, 2016, 125: 62-68.
[3]	FIGUEIREDO E, PEREIRA M A S, LOPES F, et al. Investigating early/middle bronze age copper and bronze axes by micro X-ray fluorescence spectrometry and neutron imaging techniques[J]. Spectrochimica Acta Part B: Atomic Spectroscopy, 2016, 122: 15-22.
[4]	BRAI M, GENNARO G, SCHILLACI T, et al. Double pulse laser induced breakdown spectroscopy applied to natural and artificial materials from cultural heritages: A comparison with micro-X-ray fluorescence analysis[J]. Spectrochimica Acta Part B: Atomic Spectroscopy, 2009, 64(10): 1119-1127.
[5]	HLOEK M, TROJEK T, KOMORÓCZY B, et al. Enamel paint techniques in archaeology and their identification using XRF and micro-XRF[J]. Radiation Physics and Chemistry, 2017, 137: 243-247.
[6]	SCRIVANO S, RUBERTO C, GÓMEZ-TUBÍO B, et al. In-situ non-destructive analysis of Etruscan gold jewels with the micro-XRF transportable spectrometer from CNA[J]. Journal of Archaeological Science Reports, 2017, 16: 185-193.
[7]	BONFIGLI F, HAMPAI D, DABAGOV S B, et al. Characterization of X-ray polycapillary optics by LiF crystal radiation detectors through confocal fluorescence microscopy[J]. Optical Materials, 2016, 58: 398-405.
[8]	MORADLLO M K, SUDBRINK B, HU Q, et al. Using micro X-ray fluorescence to image chloride profiles in concrete[J]. Cement and Concrete Research, 2016, 92: 128-141.
[9]	RAMOS I, PATACO I M, MOURINHO M P, et al. Elemental mapping of biofortified wheat grains using micro X-ray fluorescence[J]. Spectrochimica Acta Part B: Atomic Spectroscopy, 2016, 120: 30-36.
[10]	RICCIARDI P, LEGRAND S, BERTOLOTTI G, et al. Macro X-ray fluorescence (MA-XRF) scanning of illuminated manuscript fragments: Potentialities and challenges[J]. Microchemical Journal, 2016, 124: 785-791.
[11]	ZHA J L, LI H Z. Analysis of the principle of laser displacement sensor and its application[J]. Applied Mechanics and Materials, 2015, 734: 84-89.
[12]	SCHOONJANS T, SOL V A, VINCZE L, et al. A general Monte Carlo simulation of energy-dispersive X-ray fluorescence spectrometers: Part 6, quantification through iterative simulations[J]. Spectrochimica Acta Part B: Atomic Spectroscopy, 2013, 82(4): 36-41.
[13]	唐波，黑东炜，马戈，等. 闪光X射线衍射成像系统设计及实验方法[J]. 光子学报，2017，46(12)：84-88.TANG Bo, HEI Dongyi, MA Ge, et al. Flash X-ray diffraction imaging system and study on experiment approach[J]. Acta Photonica Sinica, 2017, 46(12): 84-88(in Chinese).
[14]	牟建雷，张津，高振桓，等. 短波长X射线衍射检测晶体材料内部缺陷的边界阈值法[J]. 光谱学与光谱分析，2011，31(6)：1712-1716.MOU Jianlei, ZHANG Jin, GAO Zhenhuan, et al. Boundary threshold value method used in crystalline material internal defect detection by short wavelength X-ray diffraction[J]. Spectroscopy and Spectral Analysis, 2011, 31(6): 1712-1716(in Chinese).
[15]	孙怡，朱佩平，于健，等. X射线衍射增强成像中吸收、折射以及散射衬度的计算层析[J]. 光学学报，2007，27(4)：749-754.SUN Yi, ZHUN Peiping, YU Jian, et al. Absorption, refraction and extinction contrast computerized tomography of X-ray diffraction enhanced imaging method[J]. Acta Optica Sinica, 2007, 27(4): 749-754(in Chinese).

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便携式微束X射线荧光谱仪的研发

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出版历程

Development of Portable Micro-X-ray Fluorescence Spectrometer

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出版历程

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