Gamma source imaging based on pixellated CdZnTe detection

Miao, 黎淼 Li; Shali, 肖沙里 Xiao; Liuqiang, 张流强 Zhang; Yulin, 曹玉琳 Cao; Yuxiao, 陈宇晓 Chen; Min, 沈敏 Shen; Xi, 王玺 Wang

doi:10.3788/hplpb20102209.2165

Cited by 3 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In 2010, Miao et al [184][185][186][187][188] established a γ-ray pinhole imaging detection system using a 39 mm × 39 mm CZT pixel array detector. They analyzed the response characteristics of the CZT detector to the 662 keV 137 Cs source, obtained the system's overall modulation transfer function through 137 Cs point source response imaging, and acquired and analyzed degraded images of the 137 Cs source at the center and edge positions of the CZT detector.…”

Section: Developments In Imaging Technologymentioning

confidence: 99%

Research on the Technological Progress of CZT Array Detectors

Li,

Cheng,

Liu

et al. 2024

Sensors

View full text Add to dashboard Cite

CdZnTe (CZT) is a new type of compound semiconductor that has emerged in recent years. Compared to other semiconductor materials, it possesses an ideal bandgap, high density, and high electron mobility, rendering it an excellent room-temperature composite semiconductor material for X-ray and γ-ray detectors. Due to the exceptional performance of CZT material, detectors manufactured using it exhibit high energy resolution, spatial resolution, and detection efficiency. They also have the advantage of operating at room temperature. CZT array detectors, furthermore, demonstrate outstanding spatial detection and three-dimensional imaging capabilities. Researchers worldwide have conducted extensive studies on this subject. This paper, building upon this foundation, provides a comprehensive analysis of CZT crystals and CZT array detectors and summarizes existing research to offer valuable insights for envisioning new detector methodologies.

show abstract

Section: Developments In Imaging Technologymentioning

confidence: 99%

Research on the Technological Progress of CZT Array Detectors

Li,

Cheng,

Liu

et al. 2024

Sensors

View full text Add to dashboard Cite

show abstract

Accumulated-carrier screening effect based investigation for the pixellated CdZnTe radiation detector

Xiao

Wang

et al. 2013

2013 IEEE 12th International Conference on Cognitive Informatics and Cognitive Computing

View full text Add to dashboard Cite

Based Rh Rh Rh target target target target X-ray X-ray X-ray X-ray source source source source is is is is accomplished. accomplished. accomplished. accomplished. The The The The experimental experimental experimental experimental results results results results indicate indicate indicate indicate that that that that the the the the response response response response signals signals signals signals of of of of the the the the anode anode anode anode pixels, pixels, pixels, pixels, which which which which distribute distribute distribute distribute over over over over the the the the center center center center irradiated irradiated irradiated irradiated area, area, area, area, are are are are completely completely completely completely shut-off shut-off shut-off shut-off when when when when the the the the tube tube tube tube voltage voltage voltage voltage is is is is 45 45 45 45 kV kV kV kV and and and and the the the the tube tube tube tube current current current current increases increases increases increases to to to to 20 20 20 20 μ μ μ μA. A. A. A. Moreover, Moreover, Moreover, Moreover, the the the the non-response non-response non-response non-response pixel pixel pixel pixel area area area area expands expands expands expands with with with with the the the the increase increase increase increase of of of of the the the the tube tube tube tube current, current, current, current, and and and and the the the the total total total total event event event event count count count count of of of of the the the the CdZnTe CdZnTe CdZnTe CdZnTe detector detector detector detector reduces reduces reduces reduces obviously. obviously. obviously. obviously. Furthermore, Furthermore, Furthermore, Furthermore, the the the the inner inner inner inner electric electric electric electric potential potential potential potential and and and and electric electric electric electric field field field field distributions distributions distributions distributions of of of of the the the the pixellated pixellated pixellated pixellated CdZnTe CdZnTe CdZnTe CdZnTe detector detector detector detector are are are are simulated simulated simulated simulated based based based based on on on on the the the the Poisson Poisson Poisson Poisson equation. equation. equation. equation. The The The The simulation simulation simulation simulation results results results results revealreveal reveal reveal that that that that the the the the accumulation accumulation accumulation accumulation of of of of the the the the hole hole hole hole carriers, carriers, carriers, carriers, which which which which resulted resulted resulted resulted from from from from the the the the extremely extremely extremely extremely low low low low drift drift drift drift ability ability ability ability of of of of the the the the hole hole hole hole carrier, carrier, carrier, carrier, leads leads leads leads to to to to a a a a relatively relatively relatively relatively high high high high spacespace-space-spacecharge-density charge-density charge-density char...

show abstract

Research on the Technological Progress of CZT Array Detectors

Li,

Cheng,

Liu

et al. 2023

Preprint

View full text Add to dashboard Cite

CdZnTe (CZT) is a new type of compound semiconductor that has emerged in recent years. Compared to other semiconductor materials, it possesses an ideal bandgap, high density, and high electron mobility, rendering it an excellent room-temperature composite semiconductor material for X-ray and γ-ray detectors. Due to the exceptional performance of CZT material, detectors manufactured using it exhibit high energy resolution, spatial resolution, and detection efficiency. They also have the advantage of operating at room temperature. CZT array detectors, furthermore, demonstrate outstanding spatial detection and three-dimensional imaging capabilities. Researchers worldwide have conducted extensive studies on this subject. This paper, building upon this foundation, provides a comprehensive analysis of CZT crystals and CZT array detectors, summarizes existing research to offer valuable insights for envisioning new detector methodologies.

show abstract

Gamma source imaging based on pixellated CdZnTe detection

Cited by 3 publications

References 0 publications

Research on the Technological Progress of CZT Array Detectors

Research on the Technological Progress of CZT Array Detectors

Accumulated-carrier screening effect based investigation for the pixellated CdZnTe radiation detector

Research on the Technological Progress of CZT Array Detectors

Contact Info

Product

Resources

About