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Measurement of persistence in YAG:Ce3+ scintillator with pulsed synchrotron X-rays

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      Abstract

      The decay time of YAG:Ce 3+ scintillator was estimated to be 60 ns by using a fast CMOS camera and synchrotron bunches.

      Abstract

      The decay time of YAG:Ce 3+ phosphor was studied using a CMOS camera with a frame rate of 1302000 s −1 and pulsed X-rays from SPring-8. A high-resolution X-ray detector with YAG:Ce 3+ was used with the camera to view the focused beam from the helical undulator. Mismatch between the ring circulation time and the frame time gave rise to a periodic variation of beam intensity in successive frames. Analysis of data obtained with two bunch modes showed that the decay time of YAG:Ce 3+ was 60 ns. The variation of the beam positions in isolated bunches was small enough to be neglected in experiments using the focused beam. The results also show the possibility of an X-ray diffraction study at high time and space resolution.

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      Affiliations
      [a ]Japan Synchrotron Research Institute, SPring-8, 1-1-1 Kouto, Sayo, Hyogo 688-5198, Japan
      [b ]Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, Japan
      Author notes
      Correspondence e-mail: yagi@ 123456spring8.or.jp
      Journal
      J Synchrotron Radiat
      J. Synchrotron Rad.
      Journal of Synchrotron Radiation
      International Union of Crystallography
      0909-0495
      1600-5775
      01 July 2011
      11 May 2011
      11 May 2011
      : 18
      : Pt 4 ( publisher-idID: s110400 )
      : 601-604
      3121232
      21685677
      ve5004
      10.1107/S0909049511010843
      JSYRES S0909049511010843
      © Matsuo and Yagi 2011

      This is an open-access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.

      Categories
      Research Papers

      Radiology & Imaging

      scintillator, high-speed camera, synchrotron bunches

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