A position-sensitive alpha detector using a thin plastic scintillator combined with a position-sensitive photomultiplier tube

Seiichi Yamamoto*, Takao Iida

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)

Abstract

A position-sensitive alpha detector was developed and tested. The alpha detector consists of a thin plastic scintillator, a position-sensitive photomultiplier tube, a position calculation circuit and a personal computer based data acquisition system. Because the thin plastic scintillator has high-detection efficiency for alpha particles while it has low-sensitivity for beta particles or gamma ray, the detector can selectively detect alpha particles with low background counts. The spatial resolution of the detector was approximately 3 mm FWHM. An autoradiographic images of plutonium distribution in the lung of an animal as well as an image of an uranium particle were successively obtained. Spatial and energy distribution of radon daughters could also be measured. We conclude that the developed position-sensitive alpha detector is useful for some applications such as plutonium detection or alpha autoradiography as well as distribution analysis of radon daughters.

Original languageEnglish
Pages (from-to)387-393
Number of pages7
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume418
Issue number2-3
DOIs
Publication statusPublished - 1998 Dec 1
Externally publishedYes

Keywords

  • Autoradiography
  • Gamma rays
  • Photomultiplier tube
  • Position-sensitive alpha detectors

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

Fingerprint

Dive into the research topics of 'A position-sensitive alpha detector using a thin plastic scintillator combined with a position-sensitive photomultiplier tube'. Together they form a unique fingerprint.

Cite this