Separation method of heavy-ion particle image from gamma-ray mixed images using an imaging plate

Akira Yamadera, Shingo Taniguchi, Hiroko Ohuchi, Takashi Nakamura, Akifumi Fukumura

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

We have developed a separation method of alpha-ray and gamma-ray images using the imaging plate (IP). The IP from which the first image was read out by an image reader was annealed at 50°C for 2 h in a drying oven and the second image was read out by the image reader. It was found out that an annealing ratio, k, which is defined as a ratio of the photo-stimulated luminescence (PSL) density at the first measurement to that at the second measurement, was different for alpha rays and gamma rays. By subtracting the second image multiplied by a factor of k from the first image, the alpha-ray image was separated from the alpha and gamma-ray mixed images. This method was applied to identify the images of helium, carbon and neon particles of high energies using the heavy-ion medical accelerator, HIMAC.

Original languageEnglish
Pages (from-to)318-325
Number of pages8
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume432
Issue number2-3
DOIs
Publication statusPublished - 1999 Aug 11

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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