Transient and steady-state dark current mechanisms in polycrystalline mercuric iodide X-ray imaging detectors

Author(s):  
M.Z. Kabir
2008 ◽  
Vol 92 (22) ◽  
pp. 223506 ◽  
Author(s):  
S. A. Mahmood ◽  
M. Z. Kabir ◽  
O. Tousignant ◽  
H. Mani ◽  
J. Greenspan ◽  
...  

2021 ◽  
Author(s):  
Jesse Tanguay ◽  
Devon Richtsmeier ◽  
Christopher Dydula ◽  
James A. Day ◽  
Kris Iniewski ◽  
...  

Author(s):  
S. Hasan ◽  
V. Joekar-Niasar ◽  
H. Steeb ◽  
N. Karadimitriou ◽  
J. Godinho ◽  
...  

2019 ◽  
Vol 59 (SB) ◽  
pp. SBBB06 ◽  
Author(s):  
Nasser Razek ◽  
Jorge Neves ◽  
Philippe Le Corre ◽  
Pierrre-François Rüedi ◽  
Riccardo Quaglia ◽  
...  

Author(s):  
Byung-Youl Cha ◽  
Ji-Koon Park ◽  
Sang-Sik Kang ◽  
Jung-Wook Shin ◽  
Jin-Young Kim ◽  
...  

1994 ◽  
Vol 38 ◽  
pp. 615-624
Author(s):  
Bradley E. Patt ◽  
Jan S. Iwanczyk ◽  
Martin P. Tornai ◽  
Craig S. Levin ◽  
Edward J. Hoffman

Abstract A nineteen element mercuric iodide (HgI2) detector array has been developed in order to investigate the potential of using this technology for in-vivo x-ray and gamma-ray imaging. A prototype cross-grid detector array was constructed with hexagonal pixels of 1.9 mm diameter (active area = 3.28 mm2) and 0.2 mm thick septa. The overall detector active area is roughly 65 mm2. A detector thickness of 1.2 mm was used to achieve about 100% efficiency at 60 keV and 67% efficiency at 140 keV The detector fabrication, geometry and structure were optimized for charge collection and to minimize crosstalk between elements. A section of a standard high resolution cast-lead gamma-camera collimator was incorporated into the detector to provide collimation matching the discrete pixel geometry. Measurements of spectral and spatial performance of the array were made using 241-Am and 99m-Tc sources. These measurements were compared with similar measurements made using an optimized single HgI2 x-ray detector with active area of about 3 mm2 and thickness of 500 μm.


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