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  • Title: An evaluation of HgI2 detectors for x-ray computed tomography.
    Author: Beinglass I, Kaufman L, Hoisier K, Hoenninger J.
    Journal: Med Phys; 1980; 7(4):370-3. PubMed ID: 7393164.
    Abstract:
    Mercuric iodide (HgI2) presents a set of attractive features as a semiconductor x-ray detector for computed tomography (CT). Its response is stable, it operates at room temperature, and thin detectors have a high detection efficiency. The properties of HgI2 permit the assembly of high spatial resolution detectors in a compact configuration. On the other hand, HgI2 exhibits a long memory, and some detectors also exhibit polarization effects, both of which are detrimental in CT. A pulse-shaping technique has been used to overcome these effects, thus demonstrating the suitability of HgI2 for use in CT.
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