國家衛生研究院 NHRI:Item 3990099045/8932
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    題名: Device and method for digitizing PET radiation events
    作者: Guo, XQ;Kao, CM;Hsiau, Zk;Chen, CT
    貢獻者: Institute of Biomedical Engineering and Nanomedicine
    摘要: A device and method used in the high resolution Positron Emission Tomography (PET) systems for digitizing radiation events for a scintillation camera and a data acquisition system. The device comprises a scintillation digitizer, including a plurality of comparators and amplifiers, two ADCs, and an analyzer for resolving the digital values of radiation events. The method comprises comparing a plurality of analog electric pulses generated upon radiation event detections with a reference voltage corresponding to an energy level of interest, amplifying all of the signals with two groups of coefficients, summing the two groups of amplified signals, digitizing the summed signals, and analyzing the digitized sums to determine digital values corresponding to a plurality of the radiation events.
    日期: 2008-03-11
    關聯: US7342232B2/2008-03-11
    Link to: http://v3.espacenet.com/publicationDetails/biblio?CC=US&NR=7342232&KC=B2
    顯示於類別:[蕭子凱(2001-2004)] 專利

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