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Title: Si-APD linear-array x-ray detector with 10-100 μm spatial and sub-nanosecond time resolution

Abstract

We developed a silicon avalanche photodiode (Si-APD) linear-array detector to be used for time-resolved X-ray scattering experiments using synchrotron X-rays. The Si-APD linear array consists of 64 pixels (pixel size: 100 × 200 μm{sup 2}) with a pixel pitch of 150 μm and a depletion depth of 10 μm. The multichannel scaler counted X-ray pulses over continuous 2046 time bins for every 0.5 ns and recorded a time spectrum at each pixel with a time resolution of 0.5 ns (FWHM) for 8.0 keV X-rays. Using the detector system, we were able to observe X-ray peaks clearly separated with 2 ns interval in the multibunch-mode operation of the Photon Factory ring. The small-angle X-ray scattering for polyvinylidene fluoride film was also observed with the detector.

Authors:
;  [1];  [2];  [3]; ; ; ;  [4]
  1. Inst. of Materials Structure Science, KEK, 1-1 Oho, Tsukuba, Ibaraki 305-0801 (Japan)
  2. Kansai Photon Science Institute, JAEA, 1-1-1 Kouto, Sayo-cho, Hyogo 679-5198 (Japan)
  3. Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo-cho, Hyogo 679-5198 (Japan)
  4. Inst. of Particle and Nuclear Physics. KEK, 1-1 Oho, Tsukuba, Ibaraki 305-0801 (Japan)
Publication Date:
OSTI Identifier:
22608416
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1741; Journal Issue: 1; Conference: SRI2015: 12. international conference on synchrotron radiation instrumentation, New York, NY (United States), 6-10 Jul 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; FILMS; KEV RANGE 01-10; PHOTONS; PITCHES; POLYVINYLS; SCINTILLATOR-PHOTODIODE DETECTORS; SILICON; SMALL ANGLE SCATTERING; SPECTRA; SYNCHROTRONS; TIME RESOLUTION; X RADIATION; X-RAY DIFFRACTION

Citation Formats

Kishimoto, S., E-mail: syunji.kishimoto@kek.jp, Haruki, R., Mitsui, T., Yoda, Y., Shimazaki, S., Saito, M., Ikeno, M., and Tanaka, M.. Si-APD linear-array x-ray detector with 10-100 μm spatial and sub-nanosecond time resolution. United States: N. p., 2016. Web. doi:10.1063/1.4952906.
Kishimoto, S., E-mail: syunji.kishimoto@kek.jp, Haruki, R., Mitsui, T., Yoda, Y., Shimazaki, S., Saito, M., Ikeno, M., & Tanaka, M.. Si-APD linear-array x-ray detector with 10-100 μm spatial and sub-nanosecond time resolution. United States. doi:10.1063/1.4952906.
Kishimoto, S., E-mail: syunji.kishimoto@kek.jp, Haruki, R., Mitsui, T., Yoda, Y., Shimazaki, S., Saito, M., Ikeno, M., and Tanaka, M.. 2016. "Si-APD linear-array x-ray detector with 10-100 μm spatial and sub-nanosecond time resolution". United States. doi:10.1063/1.4952906.
@article{osti_22608416,
title = {Si-APD linear-array x-ray detector with 10-100 μm spatial and sub-nanosecond time resolution},
author = {Kishimoto, S., E-mail: syunji.kishimoto@kek.jp and Haruki, R. and Mitsui, T. and Yoda, Y. and Shimazaki, S. and Saito, M. and Ikeno, M. and Tanaka, M.},
abstractNote = {We developed a silicon avalanche photodiode (Si-APD) linear-array detector to be used for time-resolved X-ray scattering experiments using synchrotron X-rays. The Si-APD linear array consists of 64 pixels (pixel size: 100 × 200 μm{sup 2}) with a pixel pitch of 150 μm and a depletion depth of 10 μm. The multichannel scaler counted X-ray pulses over continuous 2046 time bins for every 0.5 ns and recorded a time spectrum at each pixel with a time resolution of 0.5 ns (FWHM) for 8.0 keV X-rays. Using the detector system, we were able to observe X-ray peaks clearly separated with 2 ns interval in the multibunch-mode operation of the Photon Factory ring. The small-angle X-ray scattering for polyvinylidene fluoride film was also observed with the detector.},
doi = {10.1063/1.4952906},
journal = {AIP Conference Proceedings},
number = 1,
volume = 1741,
place = {United States},
year = 2016,
month = 7
}
  • A novel computerized electro-optic detector was designed, constructed, and characterized. The results of the experiments performed were as follows: (1) To obtain a maximum SNR when operating at any radiation intensity, the designed detector must be operated at the lowest temperature-- -5 degrees C in this configuration. This temperature permits a maximum integration time of 9.7 s without signal distortion. (2) The detector was found to be linear in the range of operation studied, 2.8 X 10(-3) to 2.0 X 10(-2) C kg-1 h-1 (11-78 R h-1), with a sensitivity of 4.2 X 10(4) mV per C kg-1 h-1 (10.8more » mV per R h-1). (3) A simulated stepped phantom was imaged, illustrating the possibility of positional measurements. (4) Very little blooming was noticed.« less
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  • X-ray detectors that combine two-dimensional spatial resolution with a high time resolution are needed in numerous applications of synchrotron radiation. Most detectors with this combination of capabilities are based on semiconductor technology and are therefore limited in size. Furthermore, the time resolution is often realised through rapid time-gating of the acquisition, followed by a slower readout. Here, a detector technology is realised based on relatively inexpensive microchannel plates that uses GHz waveform sampling for a millimeter-scale spatial resolution and better than 100?ps time resolution. The technology is capable of continuous streaming of time- and location-tagged events at rates greater thanmore » 10 7events per cm 2. Time-gating can be used for improved dynamic range.« less
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