感应读出方式紫外光子计数成像技术的研究

赵菲菲; 赵宝升; 刘永安; 胡慧君; 曹希斌

doi:10.7498/aps.59.6306

摘要

搭建了感应读出方式紫外光子计数成像系统,详细介绍了该系统的组成、工作原理和分辨率性能测试.紫外光经过减光和滤光后入射微通道板,产生的光电子在微通道板内倍增后形成电子云,由呈高阻特性的半导体Ge薄膜收集后,通过电荷耦合感应到Ge膜衬底背面的位敏阳极.阳极输出的信号经过电荷灵敏前置放大器、整形放大器后由计算机进行数据采集和处理,最后得到不同位置的光子计数图像.通过分辨率板,测得了该系统分辨率为150 μm,并通过对比试验和分布式RC网络理论模型分析了Ge膜电阻及其衬底厚度对系统性能的影响.该系统在生物超微

关键词:

Abstract

An ultraviolet photon counting imaging system based on charge induction readout was built and its structure, working principle and spatial resolution are reported. The single photon stream can be obtained via atmospheric dispersion, some weakeners, and narrow-band optical filters. A photo-electron produced in microchannel plate is multiplied, forming a charge cloud, which is collected on the Ge film and then detected through capacitive coupling by a PSA located a few millimeters behind the Ge film. The signal data from the anode is acquired and processed with software after being transformed, filtered and shaped by a charge-sensitive preamplifier and a main amplifier in sequence. Finally, a 30-minute counting image is obtained. The resolution of this system can reach 150 micrometers as tested with the resolution board, and the influence of Ge film resistivity and its substrate thickness on the performance of this system is also analyzed. The system is beneficial in good imaging properties and time resolution to bioluminescence, astronomy and nuclear radiant detection.

Keywords:

作者及机构信息

(1)中国科学院西安光学精密机械研究所,瞬态光学与光子技术国家重点实验室,西安 710119; (2)中国科学院西安光学精密机械研究所,瞬态光学与光子技术国家重点实验室,西安 710119;中国科学院研究生院,北京100049

基金项目: 国家自然科学基金(批准号:10878005)资助的课题.

Authors and contacts

(1)State Key Laboratory of Transient Optics and Photonics , Xi 'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi' an 710119,China; (2)State Key Laboratory of Transient Optics and Photonics , Xi 'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi' an 710119,China;Graduate School of Chinese Academy of Sciences, Beijing 100049, China

参考文献

[1]	Li W, Zhao B S, Zhao F F, Cao X B 2009 Acta Phot. Sin. 38 1353 (in Chinese) [李伟、赵宝升、赵菲菲、曹希斌 2009 光子学报 38 1353]
[2]	Lapington J S 2004 Nucl. Instr. and Meth. A 525 361
[3]	Jagutzki O, Barnstedt J, Spillmann U, Spielberger L, Mergel V, Ullmann-Pfleger K, Grewing M, Schmidt-Bcking H 1999 Proc.SPIE 3764 61
[4]	Zhang X H, Zhao B S, Miao Z H, Zhu X P, Liu Y A, Zou W 2008 Acta Phys. Sin. 57 4238 (in Chinese) [张兴华、赵宝升、缪震华、朱香平、刘永安、邹玮 2008 物理学报 57 4238]
[5]	Miao Z H, Zhao B S, Zhang X H, Liu Y A 2008 Chin. Phys. Lett. 25 2698
[6]	Lapington J S 2003 Nucl. Instr. and Meth. A 513 132
[7]	Maia J M, Mrmann D, Breskin A, Chechik R, Veloso J F C A, dos Santos J M F 2007 Nucl. Instr. and Meth. A 580 373
[8]	Lapington J S, Chakrabarti S, Cook T, Gsell J C, Gsell V T 2003 Nucl. Instr. and Meth. A 513 159
[9]	Chen J, Li Y, Wu G, Zeng H 2007 Acta Phys. Sin. 56 5243 (in Chinese) [陈杰、黎遥、吴光、曾和平 2007 物理学报 56 5243]
[10]	Sun Y W, Qu J L, Zhao L L, Xu G X, Ding Z H, Niu H B 2008 Acta Phys. Sin. 57 772 (in Chinese) [孙怡雯、屈军乐、赵羚伶、许改霞、丁志华、牛憨笨 2008 物理学报 57 772]
[11]	Céolin D, Chaplier G, Lemonnier M, Garcia G A, Miron C, Nahon L 2005 Rev. Sci. Instrum. 76 043302
[12]	Vallerga J V, Kaplan G C, Siegmund O H W, Lampton M, Malina R F 1989 IEEE Trans. Nucl. Sci. 36 881
[13]	Zhang X H, Zhao B S, Zhao F F, Liu Y A, Miao Z H, Zhu X P, Yan Q R 2009 Rev. Sci. Instrum. 80 033101
[14]	Zhao F F, Zhao B S, Zhang X H, Li W, Zou W, Sai X F, Wei Y L 2009 Acta Opt. Sin. 29 3236 (in Chinese) [赵菲菲、赵宝升、张兴华、李伟、邹玮、赛小锋、韦永林 2009 光学学报 29 3236]

施引文献

[1]	Li W, Zhao B S, Zhao F F, Cao X B 2009 Acta Phot. Sin. 38 1353 (in Chinese) [李伟、赵宝升、赵菲菲、曹希斌 2009 光子学报 38 1353]
[2]	Lapington J S 2004 Nucl. Instr. and Meth. A 525 361
[3]	Jagutzki O, Barnstedt J, Spillmann U, Spielberger L, Mergel V, Ullmann-Pfleger K, Grewing M, Schmidt-Bcking H 1999 Proc.SPIE 3764 61
[4]	Zhang X H, Zhao B S, Miao Z H, Zhu X P, Liu Y A, Zou W 2008 Acta Phys. Sin. 57 4238 (in Chinese) [张兴华、赵宝升、缪震华、朱香平、刘永安、邹玮 2008 物理学报 57 4238]
[5]	Miao Z H, Zhao B S, Zhang X H, Liu Y A 2008 Chin. Phys. Lett. 25 2698
[6]	Lapington J S 2003 Nucl. Instr. and Meth. A 513 132
[7]	Maia J M, Mrmann D, Breskin A, Chechik R, Veloso J F C A, dos Santos J M F 2007 Nucl. Instr. and Meth. A 580 373
[8]	Lapington J S, Chakrabarti S, Cook T, Gsell J C, Gsell V T 2003 Nucl. Instr. and Meth. A 513 159
[9]	Chen J, Li Y, Wu G, Zeng H 2007 Acta Phys. Sin. 56 5243 (in Chinese) [陈杰、黎遥、吴光、曾和平 2007 物理学报 56 5243]
[10]	Sun Y W, Qu J L, Zhao L L, Xu G X, Ding Z H, Niu H B 2008 Acta Phys. Sin. 57 772 (in Chinese) [孙怡雯、屈军乐、赵羚伶、许改霞、丁志华、牛憨笨 2008 物理学报 57 772]
[11]	Céolin D, Chaplier G, Lemonnier M, Garcia G A, Miron C, Nahon L 2005 Rev. Sci. Instrum. 76 043302
[12]	Vallerga J V, Kaplan G C, Siegmund O H W, Lampton M, Malina R F 1989 IEEE Trans. Nucl. Sci. 36 881
[13]	Zhang X H, Zhao B S, Zhao F F, Liu Y A, Miao Z H, Zhu X P, Yan Q R 2009 Rev. Sci. Instrum. 80 033101
[14]	Zhao F F, Zhao B S, Zhang X H, Li W, Zou W, Sai X F, Wei Y L 2009 Acta Opt. Sin. 29 3236 (in Chinese) [赵菲菲、赵宝升、张兴华、李伟、邹玮、赛小锋、韦永林 2009 光学学报 29 3236]

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