Application of Ag+-doped phosphate glasses as nuclear track etch detectors

Satoshi Kodaira*, Yuka Miyamoto, Yasuhiro Koguchi, Daisuke Maki, Hajime Shinomiya, Keisuke Hanaoka, Nobuyuki Hasebe, Hajime Kawashima, Mieko Kurano, Hisashi Kitamura, Yukio Uchihori, Koichi Ogura

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)


    The Ag+-doped phosphate glass which is commonly employed as the radiophotoluminscence (RPL) dosimeter has been applied as a nuclear track etch detector. The glass is etchable in the NaOH solutions and forms clear nuclear etch pit. The etching performances and track parameters vary as a function of the concentration of NaOH solution. The most sensitive normality was confirmed to be 7 N. The track response is controllable with NaOH concentration at the range of Z∗/β ≥ 80 (Z∗: effective charge, β: velocity). The charge spectroscopic resolution for Xe (Z∗/β = 107) was found to be 0.23 cu (charge unit), which would allow to identify individual nuclear charge of ultra heavy nuclei around Actinides in the cosmic rays. The Ag+-doped phosphate glass would be a promising detector for high Z spectroscopy for cosmic ray and nuclear physics fields and has the potential to operate not only RPL dosimeter but also nuclear track etch detector.

    Original languageEnglish
    Pages (from-to)537-540
    Number of pages4
    JournalRadiation Measurements
    Publication statusPublished - 2014


    • Ag-doped phosphate glass
    • Cosmic rays
    • Heavy ions
    • Nuclear track etch detector
    • Personal dosimeter

    ASJC Scopus subject areas

    • Radiation
    • Instrumentation


    Dive into the research topics of 'Application of Ag+-doped phosphate glasses as nuclear track etch detectors'. Together they form a unique fingerprint.

    Cite this