A novel CZT detector using strengthened electric field line anode

FU Jian-Qiang; LI Yu-Lan; ZHANG Lan; NIU Li-Bo; JIANG Hao; LI Yuan-Jing

doi:10.1088/1674-1137/38/12/126003

Chinese Physics C> 2014, Vol. 38> Issue(12) : 126003 DOI: 10.1088/1674-1137/38/12/126003

A novel CZT detector using strengthened electric field line anode

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Abstract：
In this paper, we report on the design, simulation and testing of a novel CZT detector with an electrode named the Strengthened Electric Field Line Anode (SEFLA). The Strengthened Electric Field (SEF) technique and Single Polarity Charge Sensing (SPCS) technique are implemented. It could achieve the same performance as Coplanar Grid, Pixel Array CZT detectors but requires only a simple readout system. Geant4, Ansoft Maxwell and a self-developed Induced Current Calculator (ICC) package are used to develop an understanding of how the energy spectrum is formed, and the parameters of the detector are optimized. A prototype is fabricated. Experimental results demonstrate the effectiveness of this design. The test shows that the SEFLA detector achieves a FWHM of 6.0% @59.5 keV and 1.6% @662 keV, which matches well with the simulations.

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FU Jian-Qiang, LI Yu-Lan, ZHANG Lan, NIU Li-Bo, JIANG Hao and LI Yuan-Jing. A novel CZT detector using strengthened electric field line anode[J]. Chinese Physics C, 2014, 38(12): 126003. doi: 10.1088/1674-1137/38/12/126003

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Received: 2014-01-22
Revised: 2014-01-22

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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

A novel CZT detector using strengthened electric field line anode

Corresponding author: LI Yu-Lan,

Received Date: 2014-01-22

Accepted Date: 2014-01-22

Available Online: 2014-12-05

Abstract: In this paper, we report on the design, simulation and testing of a novel CZT detector with an electrode named the Strengthened Electric Field Line Anode (SEFLA). The Strengthened Electric Field (SEF) technique and Single Polarity Charge Sensing (SPCS) technique are implemented. It could achieve the same performance as Coplanar Grid, Pixel Array CZT detectors but requires only a simple readout system. Geant4, Ansoft Maxwell and a self-developed Induced Current Calculator (ICC) package are used to develop an understanding of how the energy spectrum is formed, and the parameters of the detector are optimized. A prototype is fabricated. Experimental results demonstrate the effectiveness of this design. The test shows that the SEFLA detector achieves a FWHM of 6.0% @59.5 keV and 1.6% @662 keV, which matches well with the simulations.

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A novel CZT detector using strengthened electric field line anode

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