New Method of Measuring the Properties of Polycapillary X-Ray Lens

SUN Tian-Xi; DING Xun-Liang; LIU Zhi-Guo; WANG Da-Chun

Chinese Physics C> 2005, Vol. 29> Issue(10) : 1017-1022

New Method of Measuring the Properties of Polycapillary X-Ray Lens

The Key Laboratory of Beam Technology and Materials Modification of Ministry of Education; Institute of Low Energy Nuclear Physics,Beijing Normal University; Beijing Radiation Center,Beijing 100875,China

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Abstract：
A new method—axial scanning method (ASM)—is devised to find the position of the focal spot of polycapillary X-ray lens. The absolute errors of the results obtained by using ASM for output focal distance of polycapillary X-ray lens range from －120μm to 120μm. The energy dependence of the output focal distance of the polycapillary X-ray lens can be obtained by using the ASM over a broad energy range at the same time. The increase of the output focal distance of the lens with higher energies results from the decrease of the critical angle of total reflection with the increasing energies.

References

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SUN Tian-Xi, DING Xun-Liang, LIU Zhi-Guo and WANG Da-Chun. New Method of Measuring the Properties of Polycapillary X-Ray Lens[J]. Chinese Physics C, 2005, 29(10): 1017-1022.

SUN Tian-Xi, DING Xun-Liang, LIU Zhi-Guo and WANG Da-Chun. New Method of Measuring the Properties of Polycapillary X-Ray Lens[J]. Chinese Physics C, 2005, 29(10): 1017-1022. shu

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Received: 2004-11-25
Revised: 1900-01-01

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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

New Method of Measuring the Properties of Polycapillary X-Ray Lens

Corresponding author: SUN Tian-Xi,

The Key Laboratory of Beam Technology and Materials Modification of Ministry of Education; Institute of Low Energy Nuclear Physics,Beijing Normal University; Beijing Radiation Center,Beijing 100875,China

Received Date: 2004-11-25

Accepted Date: 1900-01-01

Available Online: 2005-10-05

Abstract: A new method—axial scanning method (ASM)—is devised to find the position of the focal spot of polycapillary X-ray lens. The absolute errors of the results obtained by using ASM for output focal distance of polycapillary X-ray lens range from －120μm to 120μm. The energy dependence of the output focal distance of the polycapillary X-ray lens can be obtained by using the ASM over a broad energy range at the same time. The increase of the output focal distance of the lens with higher energies results from the decrease of the critical angle of total reflection with the increasing energies.

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New Method of Measuring the Properties of Polycapillary X-Ray Lens

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