Optical characteristics of pure poly (vinyltoluene) for scintillation applications

Hidehito Nakamura, Yoshiyuki Shirakawa, Nobuhiro Sato, Hisashi Kitamura, Osamu Shinji, Katashi Saito, Sentaro Takahashi

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Advanced refining techniques have enabled the application of high-purity aromatic ring polymers with favourable scintillation characteristics for radiation detection, without requiring doped fluorescent guest molecules. Here, we show the optical characteristics of pure poly (vinyltoluene) (PVT). It has a 285-nm excitation maximum and a 315-nm emission maximum. The effective refractive index is 1.66, which was derived from its emission spectrum. Light yields were determined by irradiation with 137Cs and 207Bi radioactive sources. The light attenuation length is an unexpectedly high 40.5±0.3 mm. These results indicate that thick samples of undoped PVT can be used as effective scintillation materials, and will stimulate future applications.

Original languageEnglish
Pages (from-to)131-134
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume770
DOIs
Publication statusPublished - 2015 Jan 11
Externally publishedYes

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Keywords

  • Aromatic ring polymer
  • Excitation and emission
  • Light attenuation length
  • Poly (vinyltoluene)
  • Refractive index

ASJC Scopus subject areas

  • Instrumentation
  • Nuclear and High Energy Physics

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