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Note: A timing micro-channel plate detector with backside fast preamplifier.

Wei Wang1, Deyang Yu1, Rongchun Lu1

  • 1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China.

The Review of Scientific Instruments
|April 3, 2014
PubMed
Summary
This summary is machine-generated.

A new micro-channel plate detector with a backside preamplifier was developed to prevent signal distortion. This timing detector achieved a fast ~2 ns rise time with low background noise.

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Area of Science:

  • Nuclear instrumentation
  • Particle detection technologies

Background:

  • Signal distortion in micro-channel plate detectors can limit timing precision.
  • Traditional preamplifier configurations may introduce signal degradation.

Purpose of the Study:

  • To develop a timing micro-channel plate detector with a backside preamplifier to minimize signal distortion.
  • To characterize the performance of the novel detector system.

Main Methods:

  • Designed and constructed a micro-channel plate detector with an integrated backside double-channel fast preamplifier.
  • Described the mechanical and electronic architecture of the detector system.
  • Tested the detector's performance using an Americium-241 (241Am) alpha-source.

Main Results:

  • Achieved a signal rise time of approximately 2 nanoseconds (~2 ns).
  • Measured an output background noise level of 4 millivolts root-mean-square (4 mV(rms)).
  • Successfully mitigated signal distortion during propagation from the anode to the preamplifier.

Conclusions:

  • The developed backside preamplifier design effectively preserves signal integrity in micro-channel plate detectors.
  • The detector system demonstrates excellent timing resolution suitable for high-speed applications.
  • This advancement offers improved performance for particle detection and timing measurements.