Mini gamma camera based on photon-counting Frisch-grid CdZnTe detectors (Conference Presentation)

2019 ◽  
Author(s):  
Aleksey E. Bolotnikov ◽  
Giuseppe Camarda ◽  
Gianluigi De Geronimo ◽  
Anwar Hossain ◽  
Luis Ocampo Giraldo ◽  
...  
Keyword(s):  
Gamma Camera ◽  
Photon Counting ◽  
Cdznte Detectors

Development of Semiconductor Gamma-Camera System with CdZnTe Detectors

2006 ◽  
Author(s):  
Koichi Ogawa ◽  
Atsushi Ohta ◽  
Keisei Shuto ◽  
Nobutoku Motomura ◽  
Hiroaki Kobayashi ◽  
...  
Keyword(s):  
Gamma Camera ◽  
Camera System ◽  
Cdznte Detectors ◽  
Semiconductor Gamma

CdTe sensor configurations for robot assisted photon counting gamma camera

2021 ◽  
Vol 16 (07) ◽  
pp. T07010
Author(s):  
J. Fey ◽  
S. Procz ◽  
M.K. Schütz ◽  
V. Schoepff ◽  
F. Carrel ◽  
...  
Keyword(s):  
Gamma Camera ◽  
Photon Counting ◽  
Robot Assisted

NUCAM3-a gamma camera based on segmented monolithic CdZnTe detectors

2002 ◽  
Vol 49 (4) ◽  
pp. 1728-1732 ◽  
Author(s):  
Y. Eisen ◽  
I. Mardor ◽  
A. Shor ◽  
Z. Baum ◽  
D. Bar ◽  
...  
Keyword(s):  
Gamma Camera ◽  
Cdznte Detectors

scholarly journals Effect of Deep-Level Defects on the Performance of CdZnTe Photon Counting Detectors

Sensors ◽  
2020 ◽  
Vol 20 (7) ◽  
pp. 2032
Author(s):  
Yingrui Li ◽  
Gangqiang Zha ◽  
Dengke Wei ◽  
Fan Yang ◽  
Jiangpeng Dong ◽  
...  
Keyword(s):  
Deep Level ◽  
Energy Levels ◽  
Photon Counting ◽  
Optical Microscope ◽  
Deep Level Defect ◽  
X Ray ◽  
Photon Counting Detector ◽  
Related Defect ◽  
The Difference ◽  
Cdznte Detectors

The effect of deep-level defects is a key issue for the applications of CdZnTe high-flux photon counting devices of X-ray irradiations. However, the major trap energy levels and their quantitive relationship with the device’s performance are not yet clearly understood. In this study, a 16-pixel CdZnTe X-ray photon counting detector with a non-uniform counting performance is investigated. The deep-level defect characteristics of each pixel region are analyzed by the current–voltage curves (I–V), infrared (IR) optical microscope photography, photoluminescence (PL) and thermally stimulated current (TSC) measurements, which indicate that the difference in counting performance is caused by the non-uniformly distributed deep-level defects in the CdZnTe crystals. Based on these results, we conclude that the CdZnTe detectors with a good photon counting performance should have a larger Te cd 2 + and Cd vacancy-related defect concentration and a lower A-center and Tei concentration. We consider the deep hole trap Tei, with the activation energy of 0.638–0.642 eV, to be the key deep-level trap affecting the photon counting performance. In addition, a theoretical model of the native defect reaction is proposed to understand the underlying relationships of resistivity, deep-level defect characteristics and photon counting performance.

scholarly journals Photon-counting gamma camera based on columnar CsI(Tl) optically coupled to a back-illuminated CCD

2007 ◽  
Author(s):  
Brian W. Miller ◽  
H. Bradford Barber ◽  
Harrison H. Barrett ◽  
Liying Chen ◽  
Sean J. Taylor
Keyword(s):  
Gamma Camera ◽  
Photon Counting ◽  
Back Illuminated

Imaging performance comparison between a LaBr3:Ce scintillator based and a CdTe semiconductor based photon counting compact gamma camera

2009 ◽  
Vol 36 (4) ◽  
pp. 1298-1317 ◽  
Author(s):  
P. Russo ◽  
G. Mettivier ◽  
R. Pani ◽  
R. Pellegrini ◽  
M. N. Cinti ◽  
...  
Keyword(s):  
Gamma Camera ◽  
Photon Counting ◽  
Performance Comparison ◽  
Imaging Performance

scholarly journals On-Chip Pixel Binning in Photon-Counting EMCCD-Based Gamma Camera: A Powerful Tool for Noise Reduction

2009 ◽  
Vol 56 (5) ◽  
pp. 2559-2565 ◽  
Author(s):  
Albert H. Westra ◽  
Jan W. T. Heemskerk ◽  
Marc A. N. Korevaar ◽  
Albert J. P. Theuwissen ◽  
Rob Kreuger ◽  
...  
Keyword(s):  
Noise Reduction ◽  
Gamma Camera ◽  
Photon Counting ◽  
On Chip

High-Resolution Photon Counting Using a Lens-Coupled EMCCD Gamma Camera

2010 ◽  
Vol 57 (3) ◽  
pp. 958-963 ◽  
Author(s):  
Todd C. Soesbe ◽  
Matthew A. Lewis ◽  
Nikolai V. Slavine ◽  
Edmond Richer ◽  
Frederick J. Bonte ◽  
...  
Keyword(s):  
High Resolution ◽  
Gamma Camera ◽  
Photon Counting
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