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Electrical characteristics of microdot sensors for X-ray imaging applications

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3 Author(s)
Dong Hyun Cho ; Dept. of Radiol. Sci., Yonsei Univ., Wonju, South Korea ; Sin Kim ; Bongsoo Lee

In this paper, a recently interested radiation sensor operating in the gas proportional mode, the so-called microdot-typed radiation sensor, is described for inherently two-dimensional (2-D) readout capability. We present new observations and measurements realized with the microdot-typed sensor of a 50-μm pitch, including gas gain, rate capability, aging effect, and insensitive zone. The intrinsically 2-D structure of this sensor makes it attractive for potential applications, such as X-ray imaging devices and tracking sensors, at colliders for the next-generation synchrotron radiation sources.

Published in:

Sensors Journal, IEEE  (Volume:5 ,  Issue: 2 )