Issues of Ohmic Contacts in Human Medical Photon-Counting CT Detectors

Christoph Herrmann,Ira Blevis,Roger Steadman,Amir Livne

IEEE Transactions on Radiation and Plasma Medical Sciences（2021）

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摘要

Human medical computed tomography (CT) detectors based on photon-counting have to support high photon event rates and at the same time must not polarize. CZT/CdTe has become the most promising direct conversion material for this purpose and is in use on photon-counting CT prototype scanners at several CT manufacturers. An important design choice is the type of electrode contacts used. In the past,...

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关键词

Electron tubes,Computed tomography,Optical character recognition software,Cathodes,Ohmic contacts,Photonics,X-ray imaging

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