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Improvement of charge resolution for trans-iron nuclei (Z >=30) in CR-39 plastic nuclear track detectors using trajectory tracing technique
https://repo.qst.go.jp/records/46207
https://repo.qst.go.jp/records/46207ced6e695-9873-447c-ba30-e59441885df7
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2011-11-17 | |||||
| タイトル | ||||||
| タイトル | Improvement of charge resolution for trans-iron nuclei (Z >=30) in CR-39 plastic nuclear track detectors using trajectory tracing technique | |||||
| 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 |
Ota, Syuya
× Ota, Syuya× Yasuda, Nakahiro× Sihver, Lembit× Kodaira, Satoshi× Naka, Shuichiro× Ideguchi, Yusuke× Hasebe, Nobuyuki× 太田 周也× 安田 仲宏× 小平 聡× 仲 秀一郎× 井手口 悠介 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Charge identification of trans-iron nuclei (nuclear charge: Z>=30) using CR-39 plastic nuclear track detector (PNTD) is essential as a part of an effort to our future measurements of the projectile charge changing cross sections for galactic cosmic ray nuclei, but extremely hard. Therefore, an improvement method of the charge resolution (sZ) for 350 MeV/n Ge in CR-39 PNTD using the trajectory tracing technique with averaging the signals of nuclear tracks for each ion was studied. Eight sheets of CR-39 PNTDs were aligned and exposed to Ge beam behind a graphite target to produce projectile fragments. Average of the nuclear track data was taken over 16 detector surfaces for each ion, then the sZ of Ge was successfully improved from 0.31 charge unit on single surface to 0.15 charge unit in rms, which is good enough for making the precise cross section measurements and no other experiments using CR-39 PNTDs or the other passive detectors have achieved such a good sZ for the trans-iron nuclei with Z/beta <50 (beta: relativistic velocity). This method will be very important for our future cross section measurements toward the study of galactic cosmic ray origin. |
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| 書誌情報 |
Astrophysics and Space Sciences Transactions 巻 7, 号 4, p. 495-500, 発行日 2011-11 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1810-6528 | |||||
