Charge sharing effect on 600 μm pitch pixelated CZT detector for imaging applications

YIN Yong-Zhi; LIU Qi; XU Da-Peng; CHEN Xi-Meng

doi:10.1088/1674-1137/38/11/116002

Chinese Physics C> 2014, Vol. 38> Issue(11) : 116002 DOI: 10.1088/1674-1137/38/11/116002

Charge sharing effect on 600 μm pitch pixelated CZT detector for imaging applications

Abstract
HTML
Reference
Related

PDF

Abstract：
We are currently investigating the spatial resolution of highly pixelated Cadmium Zinc Telluride (CZT) detector for imaging application. A 20 mm×20 mm×5 mm CZT substrate was fabricated with 600 μm pitch pixels (500 μm anode pixels with 100 μm gap) and coplanar cathode. Charge sharing between two pixels was studied using collimated a 122 keV gamma ray source. Experiments show a resolution of 125 μm FWHM for double-pixel charge sharing events when the 600 μm pixelated and 5 mm thick CZT detector biased at -1000 V. In addition, we analyzed the energy response of the 600um pitch pixelated CZT detector.

References

[1]

ZHANG F, HE Z, Seifert C E. IEEE Trans. Nucl. Sci., 2007, 54: 843-848[2] GU Y, Matteson J L, Skelton R T et al. Phys. Med. Biol., 2011 56: 1563-1584[3] Mitchell G S, Sinha S, Stickel J R et al. IEEE Trans. Nucl. Sci., 2008, 55: 870-876[4] YIN Y, CHEN X, LI C et al. IEEE Trans. Nucl. Sci., 2014, 61: 154-161[5] Barrett H H, Eskin J D, Barber H B Phy. Rev. L, 1995, 75: 156-159[6] Burcin Donmez, John R Macri, Mark L McConnell et al. IEEE Nucl. Sci. Symp. Conf. Rec., 2005, N35-61[7] YIN Y, CHEN X, WU H et al. IEEE Trans. Nucl. Sci., 2013, 60: 9-15[8] Komarov S, YIN Y, WU H et al. Phys. Med. Biol., 2012, 57: 7355-7380[9] Kim J C, Anderson S E, Kaye W et al. Nucl. Instrum. Methods A, 2011, 654: 233-243[10] Wilson M D, Seller P, Veale M C et al. IEEE Nucl. Sci. Symp. Conf. Rec., 2007, 54: 1255-1259[11] Szeles C, Soldner S A, Vydrin S et al. IEEE Trans. Nucl. Sci., 2007, 54: 1350-1358[12] CHEN C M H, Boggs S E, Bolotnikov A E et al. IEEE Trans. Nucl. Sci., 2002, 49: 270-276[13] Sharma D P, Ramsey B D, Meisner J et al. Austin R A. ‘Preliminary Results from Small-Pixel CdZnTe Arrays’, Proc. SPIE 3765, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy X, 822 (October 22, 1999); doi:10.1117/12.366570[14] LI Q, Beilicke M, Lee K et al. Astroparticle Physics, 2011, 34: 769-777[15] Jung I, Krawczynski H, Burger A et al. Astroparticle Physics, 2007, 28: 397-408

[1]	Hao Yang , Zhi-Qing Zhang , You-Ya Yang , Peng Li . $ D^*_{(s)}\to P $ form factors and their applications to semi-leptonic and non-leptonic weak decays. Chinese Physics C, 2025, 49(12): 123104. doi: 10.1088/1674-1137/adfb5d
[2]	Ronghao Hu , Qike Gu , Kejian Shi , Zezhong Wei , Meng Lv , Shiyang Zou , Yongkun Ding . Polarized neutron beams from polarized deuterium-tritium fusion with applications to magnetic field imaging in high-energy-density plasmas. Chinese Physics C, 2025, 49(12): 124102. doi: 10.1088/1674-1137/adec4f
[3]	Peng Yin , Jianmin Dong , Wei Zuo . Effect of tensor correlations on the depletion of nuclear Fermi sea within the extended BHF approach. Chinese Physics C, 2017, 41(11): 114102. doi: 10.1088/1674-1137/41/11/114102
[4]	DU Ying-Shuai , YUE Qian , LIU Yi-Bao , CHEN Qing-Hao , LI Jin , CHENG Jian-Ping , KANG Ke-Jun , LI Yuan-Jing , LI Yu-Lan , MA Hao , XING Hao-Yang , YU Xun-Zhen , ZENG Zhi . Characterization of large area photomultiplier ETL 9357FLB for liquid argon detector. Chinese Physics C, 2014, 38(7): 076003. doi: 10.1088/1674-1137/38/7/076003
[5]	M. Bashkanov (for the WASA-at-COSY collaboration) . ABC effect in double-pionic nuclear fusion and a pn resonance as its possible origin. Chinese Physics C, 2010, 34(9): 1339-1341. doi: 10.1088/1674-1137/34/9/037
[6]	ZHANG Da-Lin , QIU Sui-Zheng , LIU Chang-Liang , SU Guang-Hui . Steady state investigation on neutronics of a molten salt reactor considering the flow effect of fuel salt. Chinese Physics C, 2008, 32(8): 624-628. doi: 10.1088/1674-1137/32/8/007
[7]	Li Yangguo . Antiproton -Nucleus Charge Exchange Reaction and Inelastic Scattering. Chinese Physics C, 1996, 20(11): 1021-1027.

Access

Get Citation

YIN Yong-Zhi, LIU Qi, XU Da-Peng and CHEN Xi-Meng. Charge sharing effect on 600 μm pitch pixelated CZT detector for imaging applications[J]. Chinese Physics C, 2014, 38(11): 116002. doi: 10.1088/1674-1137/38/11/116002

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2013-12-25
Revised: 1900-01-01

Article Metric

Article Views(3121)
PDF Downloads(225)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Charge sharing effect on 600 μm pitch pixelated CZT detector for imaging applications

Corresponding author: CHEN Xi-Meng,

Received Date: 2013-12-25
Accepted Date: 1900-01-01
Available Online: 2014-11-05

Abstract: We are currently investigating the spatial resolution of highly pixelated Cadmium Zinc Telluride (CZT) detector for imaging application. A 20 mm×20 mm×5 mm CZT substrate was fabricated with 600 μm pitch pixels (500 μm anode pixels with 100 μm gap) and coplanar cathode. Charge sharing between two pixels was studied using collimated a 122 keV gamma ray source. Experiments show a resolution of 125 μm FWHM for double-pixel charge sharing events when the 600 μm pixelated and 5 mm thick CZT detector biased at -1000 V. In addition, we analyzed the energy response of the 600um pitch pixelated CZT detector.