量研学術機関リポジトリ「QST-Repository」は、国立研究開発法人 量子科学技術研究開発機構に所属する職員等が生み出した学術成果（学会誌発表論文、学会発表、研究開発報告書、特許等）を集積しインターネット上で広く公開するサービスです。 Welcome to QST-Repository where we accumulates and discloses the academic research results(Journal Publications, Conference presentation, Research and Development Report, Patent, etc.) of the members of National Institutes for Quantum and Radiological Science and Technology.
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The radial core size of tracks in CR-39 plastics has been determined for several heavy ions, O(8.6MeV),Ne(18.8MeV),Si(27MeV),Ar(35MeV),by AFM and UV method. Inte AFM method,the core radii were assessed from the growgh behavior of minute etch pits within 1 min of etching. These were derived from each intersection of the extrapolated line,firred to each growth curve of etch pit radius. With the UV method, changes in the UV-visible cpectra of CR-39 with fluence were obtained. Then the critical fluence where the track overlapping became statictically significant was determined for each ion. Based on the track overlapping model, the track core radius was calculated. Both methods were found to give results concordant with each other for those heaby ions.
雑誌名
Nuclear Instruments & Methods in Physics Research Section B
Track core size estimation for heavy ions in CR-39 by AFM and UV methods.
