[Gate-users] about time stamp of singles

[张辉]

Hi all:

       When I  used root to analyse the singles signal time stamps of one module in a pet scanner, and static the time interval of time stamps of every two near singles' time stamp. I get a curious result, the histogram of the interval of time stamps presented a exponent attenuation curve. But I think the result should be a gussian distribution curve with the mean value at average time interval of the singles beating the same module.
      I tried the experiment under gate4.0 and 6.0, changed many shape of phantom and source and  tried fdg/backtoback/ion source, they all give me a  exponent attenuation curve. Is it  a bug in gate source code?
      I analysised the time interval of single signal using the benchmarkPET.mac , only opened the singleflag to get single root output and write the root analysis code. I applied it in this letter and hope someone could help me.
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