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Long-range alpha detector.

D W MacArthur1, K S Allander, J A Bounds

  • 1Los Alamos Laboratory, NM 87645.

Health Physics
|September 1, 1992
PubMed
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This study introduces a novel long-range alpha detector that overcomes limitations of traditional alpha contamination detectors. It uses a fan to transport ions, enabling sensitive detection over several meters.

Area of Science:

  • Nuclear Physics
  • Radiation Detection Technology

Background:

  • Traditional alpha particle detectors face challenges due to the short range of alpha particles in air.
  • These limitations include poor sensitivity, geometric constraints, and inefficient monitoring.

Purpose of the Study:

  • To test and document the performance of a new long-range alpha detector.
  • To address the inherent problems associated with conventional alpha contamination detection methods.

Main Methods:

  • Utilizing a fan to create an airflow that transports ionized particles generated by alpha interactions over several meters.
  • Employing an ion chamber positioned before the fan to measure the current carried by these moving ions.

Main Results:

  • Demonstrated the capability of transporting alpha-induced charges over significant distances (meters) via airflow.

Related Experiment Videos

  • Successfully detected alpha decays by measuring the ion current.

    • Conclusions:

    • The new long-range alpha detector design effectively overcomes the range limitations of alpha particles.
    • This technology offers improved sensitivity and monitoring efficiency for alpha contamination detection.