國家衛生研究院 NHRI:Item 3990099045/8931
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    题名: Device and method for digitizing gamma ray energy and characterizing peak time and decay time constant without the use of ADC
    作者: Guo, XQ;Kao, CM;Hsiau, Zk;Chen, CT
    贡献者: Institute of Biomedical Engineering and Nanomedicine
    摘要: A device and method used in high resolution positron emission tomography (PET) systems for digitizing gamma ray energy and characterizing peak time and decay time constant, models a voltage pulse generated upon a PET event detection as a fast linearly rising edge followed by a slower exponential decay. The model includes parameters of the voltage pulse that are relevant for PET event detection including a decay constant, a peak voltage value, and a peak time, which are determined from time interval measurements of the voltage pulse. The time interval measurements are made using comparators and counters in an exemplary electronic implementation.
    日期: 2007-04-03
    關聯: US7199370B2/2007-04-03
    Link to: http://v3.espacenet.com/publicationDetails/biblio?CC=US&NR=7199370&KC=B2
    显示于类别:[蕭子凱(2001-2004)] 專利

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