Electrical characteristics of microdot sensors for X-ray imaging applications |
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Authors: | Hyosung Cho Sin Kim Bongsoo Lee |
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Affiliation: | Dept. of Radiol. Sci., Yonsei Univ., Wonju, South Korea; |
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Abstract: | 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-/spl mu/m 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. |
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