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Related Experiment Videos

New methods for semiconductor charge-diffusion-length measurements using synchrotron radiation.

J Kohagura1, T Cho, M Hirata

  • 1Plasma Research Centre, University of Tsukuba, Ibaraki 305, Japan.

Journal of Synchrotron Radiation
|July 21, 2004
PubMed
Summary
This summary is machine-generated.

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A new theory on semiconductor detector X-ray energy response was extended and verified. This work experimentally demonstrates 3D charge diffusion effects in multichannel detectors, aiding diffusion length measurements.

Area of Science:

  • Physics
  • Materials Science
  • Detector Technology

Background:

  • Multichannel semiconductor detectors are crucial for position-sensitive observations in fields like synchrotron radiation research.
  • Accurate characterization of their X-ray energy response is essential for reliable data acquisition.
  • Existing theories require extension to fully describe complex detector behaviors.

Purpose of the Study:

  • To extend and verify a new theory on the X-ray energy response of semiconductor detectors.
  • To characterize the X-ray response of a silicon-wafer-based multichannel semiconductor detector.
  • To experimentally demonstrate three-dimensional charge-diffusion effects on detector signals.

Main Methods:

  • Extension of a theoretical framework for X-ray energy response.

Related Experiment Videos

  • Fabrication of multichannel semiconductor detectors on a silicon wafer.
  • Experimental verification using synchrotron radiation at the Photon Factory.
  • Analysis of signals from two types of multichannel detectors.

    • Main Results:

    • Experimental demonstration of three-dimensional charge-diffusion effects impacting adjacent detector channels.
    • Verification of the essential physics principles of the proposed X-ray response theory.
    • Characterization of the X-ray response for specific multichannel detector designs.

    Conclusions:

    • The extended theory accurately describes the X-ray response of multichannel semiconductor detectors.
    • Observed charge-diffusion effects provide insights into detector physics.
    • The findings offer practical methods for measuring diffusion lengths in industrial applications.