An array of virtual Frisch-grid CdZnTe detectors and a front-end application-specific integrated circuit for large-area position-sensitive gamma-ray cameras

被引：22

作者：

Bolotnikov, A. E. ^{[1
]}

Ackley, K. ^{[1
]}

Camarda, G. S. ^{[1
]}

Cherches, C. ^{[1
]}

Cui, Y. ^{[1
]}

De Geronimo, G. ^{[1
]}

Fried, J. ^{[1
]}

Hodges, D. ^{[2
]}

Hossain, A. ^{[1
]}

Lee, W. ^{[3
]}

Mahler, G. ^{[1
]}

Maritato, M. ^{[1
]}

Petryk, M. ^{[4
]}

Roy, U. ^{[1
]}

Salwen, C. ^{[1
]}

Vernon, E. ^{[1
]}

Yang, G. ^{[1
]}

James, R. B. ^{[1
]}

机构：

[1] Brookhaven Natl Lab, Upton, NY 11793 USA

[2] Univ Texas El Paso, El Paso, TX 79968 USA

[3] Korea Univ, Seoul 136855, South Korea

[4] SUNY Binghamton, Vestal, NY 13902 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2015年 / 86卷 / 07期

关键词：

READOUT;

D O I：

10.1063/1.4927455

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We developed a robust and low-cost array of virtual Frisch-grid CdZnTe detectors coupled to a front-end readout application-specific integrated circuit (ASIC) for spectroscopy and imaging of gamma rays. The array operates as a self-reliant detector module. It is comprised of 36 close-packed 6 x 6 x 15 mm(3) detectors grouped into 3 x 3 sub-arrays of 2 x 2 detectors with the common cathodes. The front-end analog ASIC accommodates up to 36 anode and 9 cathode inputs. Several detector modules can be integrated into a single-or multi-layer unit operating as a Compton or a coded-aperture camera. We present the results from testing two fully assembled modules and readout electronics. The further enhancement of the arrays' performance and reduction of their cost are possible by using position-sensitive virtual Frisch-grid detectors, which allow for accurate corrections of the response of material non-uniformities caused by crystal defects. (C) 2015 AIP Publishing LLC.

引用

页数：10

共 22 条

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Vernon, E. ;

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