WEKO3
アイテム
Micro-collimators fabricated by chemical etching of thin polyallyldiglycol carbonate polymer films exposed to oxygen ions
https://repo.qst.go.jp/records/45992
https://repo.qst.go.jp/records/459927cc02146-d253-4792-a04e-ced649462989
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2011-02-03 | |||||
| タイトル | ||||||
| タイトル | Micro-collimators fabricated by chemical etching of thin polyallyldiglycol carbonate polymer films exposed to oxygen ions | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
W.Y., Choi Viann
× W.Y., Choi Viann× Ng, C.K.M.× Nikezic, Dragoslav× Konishi, Teruaki× K.N., Yu Peter× 小西 輝昭 |
|||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | One approach for alpha-particle radiobiological experiments is to use solid-state nuclear track detectors (SSNTDs) as support substrates to record the -particle hit positions on the targets. To facilitate accurate characterization of the hit positions as well as the incident alpha-particle energies, micro-collimators are required in these experiments to restrict the incident  particles to those with small deviations from normal incidence with respect to the collimator. In the present paper, we fabricated micro-collimators which restricted alpha-particles to those with deviations as low as 12o. Specially etched polyallyldiglycol carbonate (PADC) films, which are a kind of SSNTD, with a thickness 70 µm were prepared from commercially available PADC films. These were then irradiated by 4.83 MeV/n oxygen ions generated from the heavy-ion medical accelerator in Chiba (HIMAC), Japan. The irradiated films were chemically etched for at least 2.7 h to achieve etched-through air channels to form the micro-collimators. The micro-collimators formed by etching the irradiated films for 2.7, 3, 4 h were experimentally shown to be able to restrict alpha-particles to those very close to normal incidence, while that formed by etching the irradiated film for 4.5 h started to allow alpha-particles with larger deviations from normal incidence to pass through, the latter being likely due to overlapping of air channels from excessive etching. | |||||
| 書誌情報 |
Nuclear Instruments & Methods in Physics Research Section A 巻 631, 号 1, p. 6-11, 発行日 2010-12 |
|||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0168-9002 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.nima.2010.12.100 | |||||
