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Photon Counting Imaging with an Electron-Bombarded Pixel Image Sensor.

Liisa M Hirvonen1, Klaus Suhling2

  • 1Department of Physics, King's College London, Strand, London WC2R 2LS, UK. liisa.2.hirvonen@kcl.ac.uk.

Sensors (Basel, Switzerland)
|May 3, 2016
PubMed
Summary
This summary is machine-generated.

Electron-bombarded pixel image sensors detect single photons for low-light imaging. This technology enables precise photon arrival time determination, enhancing imaging resolution and capabilities.

Keywords:
EBCCDEBCMOSelectron-bombarded sensorlow light level imagingphoton countingsingle photon detection

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Area of Science:

  • Physics
  • Electrical Engineering
  • Image Processing

Background:

  • Electron-bombarded pixel image sensors offer high sensitivity for single-photon detection.
  • These sensors are crucial for imaging applications at extremely low light levels.

Purpose of the Study:

  • To provide an overview of electron-bombarded pixel image sensor technology.
  • To discuss recent developments in single photon counting imaging using this technology.
  • To explore potential applications of this advanced imaging technique.

Main Methods:

  • Utilizing Charge-Coupled Device (CCD) or Complementary Metal-Oxide-Semiconductor (CMOS) sensors.
  • Accelerating single photoelectrons directly into the sensor.
  • Employing photon event centroiding to reconstruct lost resolution.
  • Implementing gain voltage sweeps for photon arrival time determination.

Main Results:

  • Demonstrated capability for detecting hundreds to thousands of photon events per frame.
  • Achieved narrow, acceleration-voltage-dependent pulse height distributions for photon events.
  • Showcased potential for sub-frame exposure time resolution in photon arrival time determination.

Conclusions:

  • Electron-bombarded sensors are effective for single photon counting imaging.
  • The technology allows for high-resolution imaging at extremely low light levels.
  • Further developments promise enhanced capabilities for time-resolved photon detection.