Using 3D position sensitivity to reveal response non-uniformities in CdZnTe, TlBr, and CsPbBr3 detectors

被引：1

作者：

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

Brown, C. A. ^{[2
]}

Carini, G. A. ^{[1
]}

Christian, J. ^{[2
]}

Cirignano, L. ^{[2
]}

Deane, C. R. ^{[1
]}

Dellapenna, A. ^{[1
]}

Deptuch, G. ^{[1
]}

Fried, J. ^{[1
]}

Herrmann, S. ^{[1
]}

Kargar, A. ^{[2
]}

Kim, H. ^{[2
]}

Koslowsky, M. R. ^{[3
]}

Maj, P. ^{[1
]}

Manthena, S. V. ^{[1
]}

Miller, A. L. ^{[3
]}

Miryala, S. ^{[1
]}

Norris, A. M. ^{[3
]}

Ogorodnik, Y. ^{[2
]}

Pinaroli, G. ^{[1
]}

Raguzin, E. ^{[1
]}

Smith, M. B. ^{[3
]}

Squillante, M. R. ^{[2
]}

Squillante, M. S. ^{[2
]}

Tower, J. ^{[2
]}

Valente, A. J. ^{[3
]}

Weststrate, E. ^{[2
]}

Shah, K. S. ^{[2
]}

机构：

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

[2] Radiat Monitoring Devices, Watertown, MA 02472 USA

[3] Bubble Technol Ind, Chalk River, ON K0J 1J0, Canada

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2023年 / 1057卷

关键词：

Room temperature semiconductor gamma-ray; detectors; CdZnTe; TlBr; CsPbBr3; High granularity detectors; Crystal defects; Position-sensitive virtual Frisch-grid detectors;

D O I：

10.1016/j.nima.2023.168785

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Position sensitivity enables the correction of response non-uniformities in room-temperature semiconductor detectors caused by crystal defects and other factors. It can also be used to pinpoint the exact location of crystal defects responsible for the response variations. This work describes a technique for revealing and visualizing the detector regions affecting the charge collection efficiency in CdZnTe (CZT), TlBr, and CsPbBr3 detectors configured as position-sensitive virtual Frisch-grid (VFG) devices. The technique correlates the photopeak events in energy spectra with their spatial distributions inside the detectors using the position information. By selecting the events from narrow energy intervals within a photopeak, we can visualize the detector volumes with particular charge collection efficiencies, which, in turn, correlate with the locations of electrode and crystal defects. We demonstrate this technique in several examples. Columnar structures in the volume plots (position distribution maps) are consistent with signal losses near or at the anode in selected samples of CZT and TlBr. Structures exhibiting a distinct depth dependence are consistent with grain boundaries or other crystal defects.

引用

页数：9

共 12 条

[1] Performance of 8?8?32 and 10?10?32 mm 3 CdZnTe position -sensitive virtual Frisch -grid detectors for high-energy gamma ray cameras
Bolotnikov, A. E.
MacKenzie, J.
Chen, E.
Kumar, F. J.
Taherion, S.
Carini, G.
De Geronimo, G.
Fried, J.
Kim, Kihyun
Girado, L. Ocampo
Vernon, E.
James, R. B.
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2020, 969
[2] An array of virtual Frisch-grid CdZnTe detectors and a front-end application-specific integrated circuit for large-area position-sensitive gamma-ray cameras
Bolotnikov, A. E.
Ackley, K.
Camarda, G. S.
Cherches, C.
Cui, Y.
De Geronimo, G.
Fried, J.
Hodges, D.
Hossain, A.
Lee, W.
Mahler, G.
Maritato, M.
Petryk, M.
Roy, U.
Salwen, C.
Vernon, E.
Yang, G.
James, R. B.
[J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 2015, 86 (07)
[3] Bolotnikov A.E., 2012, Radiation Detection Systems, Vsecond
[4] Bolotnikov AE, 2022, DEVICE CIRC SYST, P103, DOI 10.1201/9781003147633-5
[5] GPU-accelerated CZT detector simulation with charge build-up effects
Delcourt, A.
Montemont, G.
[J]. JOURNAL OF INSTRUMENTATION, 2023, 18 (02)
[6] Perovskite CsPbBr3 single crystal detector for alpha-particle spectroscopy
He, Yihui
Liu, Zhifu
McCall, Kyle M.
Lin, Wenwen
Chung, Duck Young
Wessels, Bruce W.
Kanatzidis, Mercouri G.
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2019, 922 : 217 - 221
[7] High spectral resolution of gamma-rays at room temperature by perovskite CsPbBr3 single crystals
He, Yihui
Matei, Liviu
Jung, Hee Joon
McCall, Kyle M.
Chen, Michelle
Stoumpos, Constantinos C.
Liu, Zhifu
Peters, John A.
Chung, Duck Young
Wessels, Bruce W.
Wasielewski, Michael R.
Dravid, Vinayak P.
Burger, Arnold
Kanatzidis, Mercouri G.
[J]. NATURE COMMUNICATIONS, 2018, 9
[8] Design of Capacitive Frisch Grid TlBr Detectors for Radionuclide Identification
Kargar, A.
Christian, J.
Kim, H.
Cirignano, L.
Squillante, M.
Squillante, M. S.
Weststrate, E.
Bolotnikov, A.
Carini, G.
Dellapenna, A.
Fried, J.
Smith, M. B.
Johnston, E. M.
Koslowsky, M. R.
Miller, A. L.
Shah, K. S.
[J]. 2019 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (NSS/MIC), 2019,
[9] Kargar A., 2009, Characterization and Optimization of Cadmium Zinc Telluride Frisch Collar Gamma-Ray Spectrometers and Their Development in an Array of Detectors
[10] Developing Larger TlBr Detectors-Detector Performance
Kim, H.
Cirignano, L.
Churilov, A.
Ciampi, G.
Higgins, W.
Olschner, F.
Shah, Kanai
[J]. IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 2009, 56 (03) : 819 - 823

← 1 2 →