A new positron annihilation lifetime spectrometer based on DRS4 waveform digitizing board

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AN Ran, CHEN Bin, LIU Yan-Fen, YE Bang-Jiao, KONG Wei and Stefan Ritt. A new positron annihilation lifetime spectrometer based on DRS4 waveform digitizing board[J]. Chinese Physics C, 2014, 38(5): 056001. doi: 10.1088/1674-1137/38/5/056001
AN Ran, CHEN Bin, LIU Yan-Fen, YE Bang-Jiao, KONG Wei and Stefan Ritt. A new positron annihilation lifetime spectrometer based on DRS4 waveform digitizing board[J]. Chinese Physics C, 2014, 38(5): 056001.  doi: 10.1088/1674-1137/38/5/056001 shu
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Received: 2013-06-17
Revised: 1900-01-01
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A new positron annihilation lifetime spectrometer based on DRS4 waveform digitizing board

    Corresponding author: AN Ran,

Abstract: A new simple digital positron lifetime spectrometer has been developed. It includes a DRS4 waveform digitizing board and two scintillation detectors based on the XP2020Q photomultiplier tubes and LaBr3 scintillators. The DRS4 waveform digitizing can handle small pulses, down to few tens of millivolts, and its time scale linearity and stability are very good. The new system has reached a 206 ps time resolution, which is better than the conventional analog apparatus using the same detectors. These improvements make this spectrometer more simple and convenient in comparison with other spectrometers, and it can be applied to the other scintillation timing measurements with picosecond accuracy.

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