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

  • 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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  • [1] . DING Xun-Liang, LIU Zhi-Guo, YAN Yi-Ming et al. X-Ray Spectrom, 2004, 33: 67—732. DING Xun-Liang, XIE Jing-Dong, HE Ye-Jun et al. Talanta, 2000, 53: 17—223. YAN Yi-Ming, DING Xun-Liang. Nucl. Instrum. Methods,1993, B82: 121—1244. DING Xun-Liang, HE Ye-Jun, YAN Yi-Ming. X-Ray Spectrom, 1997, 26: 374—3795. CHEN Jun et al. HEP NP,2003, 27(8): 744—746(in Chinese)(陈俊等.高能物理与核物理,2003,27(8):744-746) 6. Vincze L, WEI F, Proost K et al. J. Anal. At. Spectrom,2002, 17: 177—1827. Donald H B. X-Ray Spectrom, 2003, 32: 195—2078. Muradin A K. X-Ray Spectrom, 2000, 29: 343—3489. MacDonald C. A, Gibson W M. X-Ray Spectrom, 2003,32: 258—26810. GAO N, Ponomarev I Y. X-Ray Spectrom, 2003, 32: 186—19411. Vincze L, Riekel C. X-Ray Spectrom, 2003, 32: 208—21412. Taguchi Takeyoshi, XIAO Qi-Fan, Harada Jimpei. J. Synchrotron Rad., 1999, 6: 170—17113. DING Xun-Liang, WEI Liang, YAN Yi-Ming. J. Trace and Microprobe Techniques, 1997, 15(4): 647—65214. Birgit Kanngieβer, Natalia Kemf, Wolfgang Malzer. Nucl. Instrum. Methods, 2002, B198: 230—23715. WANG Yan et al. Journal of Beijing Normal University (Natural Science), 2005, 41(1): 29—31(in Chinese)(汪燕等.北京师范大学学报(自然科学报),2005,41(1):29-31)
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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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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

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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