强激光与粒子束, 2010, 22 (10): 2313, 网络出版: 2010-12-07   

球面弯晶在X射线诊断中的应用

Application of spherically bent crystals spectrometer to X-ray diagnosis
作者单位
1 重庆大学 光电技术及系统教育部重点实验室, 重庆400030
2 中国工程物理研究院 激光聚变研究中心, 四川 绵阳621900
摘要
为了诊断等离子体X射线, 利用X射线布拉格衍射原理研制了球面弯晶谱仪。实验采用α-石英作为其晶体分析器色散元件, 晶体弯曲半径为250 mm, 布拉格角为30°~67.5°; 采用接收面积10 mm×50 mm的X射线胶片作为摄谱器件, 接收等离子体X射线谱线信息。通过在“阳”加速器装置上进行实验, 得到了钛等离子体X射线K壳层激发谱线信息, 其光谱分辨力可达到1 000以上, 光谱带宽约为0.43 eV。
Abstract
In order to diagnose X-ray emitted from the plasma, a spherically bent crystals spectrometer was developed based on the X-ray Bragg diffraction theory. In the experiment, the dispersive element of crystal analyzer was quartz, the bent radius was 250 mm and the range of Bragg angle of the crystal was 30° to 67.5°. The X-ray film, as its principal detector, obtained spectra information which had an effective area of 10 mm×50 mm. The experiment was carried out at the anode accelerator. The detector obtained the X-ray spectra information of the K-shell Ti spectra. By the analysis of spectra information, the spectral resolution of spherically bent quartz crystals can be achieved for more than 1 000, and the spectral passband is 0.43 eV.
参考文献

[1] Regan S P, Delettrez J A, Jaanimagi P A, et al. Characterization of direct-drive-implosion core conditions on OMEGA with time-resolved Ar K-shell spectroscopy[R].LLE Review Quarterly Report,2001.

[2] Sorge S, Wierting A, Roepke G, et al. Diagnostics of a laser-induced dense plasma by hydrogen-like carbon spectra[J].Phys B,2000,33(16):2983-3000.

[3] Rosmeja O N, Wiesera J, Geissela M, et al. X-ray spectromicroscopy of fast heavy ions and target radiation[J].Nuclear Instruments and Methods in Physics Research A,2002,495(8):29-39.

[4] Sinars D B, Bennett G R, Wenger D F, et al. Monochromatic X-ray imaging experiments on the Sandia National Laboratories Z facility[J].Rev Sci Instrum, 2004, 75(10): 3672-3677.

[5] Sinars D B, Bennett G R, Wenger D F, et al. Evaluation of bent-crystal X-ray backlighting and microscopy techniques for the Sandia Z machine[J].Appl Opt, 2003, 42(19): 4059-4071.

[6] Bitter M, Hill K W, Stratton B, et al. Spatially resolved spectra from a new X-ray imaging crystal spectrometer for measurements of ion and electron temperature profiles [J].Rev Sci Instrum, 2004, 75(10): 3660-3665.

[7] 施军, 肖沙里, 雷小明, 等.椭圆弯晶谱仪分析器研制[J].仪器仪表学报, 2008, 29(5):982-985.(Shi Jun, Xiao Shali, Lei Xiaoming, et al. Design of elliptical crystal spectrograph analyzer.Chinese Journal of Scientific Instrument,2008,29(5):982-985)

[8] Shevelko A P, Kasyanov T A, Yakushev O F, et al. Compact focusing von Hamos spectrometer for quantitative X-ray spectroscopy[J]. Rev Sci Instrum, 2002, 73(10): 3458-3463.

[9] Turner D C, Knight L V, Mena A R, et al. Focusing crystal von Hamos spectrometers for XRF applications[J].Advances in X-ray Analysis,2001,44:329-335.

[10] Foster E, Giibel K, Uschmann I, et al. New crystal spectrograph designs and their application to plasma diagnostics[J].Rev Sci Instrum,1992,63(10):5012-5017.

[11] Bitter M, Hill K W, Roquemore A L. Imaging X-ray crystal spectrometers for the national spherical torus experiment[J].Rev Sci Instrums,1999,70(1):292-295.

[12] Flora F, Bollanti S, Lai A, et al. A novel portable, high-luminosity monochromatically tunable X-ray microscope[C]//Proc of SPIE. 2001,4504:240-252.

[13] 杨震华.“阳”加速器Z-pinch 实验中负载方案的分析[J].强激光与粒子束, 2001,13(2):209-212.(Yang Zhenhua. Theoretical analysis of Z-pinch load design on anode accelerator.High Power Laser and Particle Beams,2001,13(2):209-212)

[14] 蒯斌, 邱爱慈, 曾正中, 等.强光一号Z箍缩产生keV级特征X射线初步研究[J]. 强激光与粒子束,2007,19(6):981-986.(Kuai Bin, Qiu Aici, Zeng Zhengzhong, et al. Primary study on production of keV level characteristic X-radiation via high power Z-pinch on Qiangguang-I generator.High Power Laser and Particle Beams,2007,19(6):981-986)

[15] Shlyaptseva A S, Fedin D A, Hamasha S M, et al. X-ray spectroscopy and spectropolarimetry of high energy density plasma complemented by LLNL electron beam ion trap experiments[J].Rev Sci Instrum,2003,74(3):1947-1950.

刘利锋, 肖沙里, 王洪建, 施军, 刘慎业, 韦敏习, 陈伯伦, 钱家渝. 球面弯晶在X射线诊断中的应用[J]. 强激光与粒子束, 2010, 22(10): 2313. Liu Lifeng, Xiao Shali, Wang Hongjian, Shi Jun, Liu Shenye, Wei Minxi, Chen Bolun, Qian Jiayu. Application of spherically bent crystals spectrometer to X-ray diagnosis[J]. High Power Laser and Particle Beams, 2010, 22(10): 2313.

本文已被 2 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!