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名古屋大学タンデトロンAMS14Cシステムの現状と利用(2012)
https://doi.org/10.18999/sumrua.24.13
https://doi.org/10.18999/sumrua.24.1377b60b93-2148-4f0b-b669-6d81400c9edd
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
sumrua_24_13.pdf (10.1 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2014-06-06 | |||||
| タイトル | ||||||
| タイトル | 名古屋大学タンデトロンAMS14Cシステムの現状と利用(2012) | |||||
| 言語 | ja | |||||
| その他のタイトル | ||||||
| その他のタイトル | Status and Applications of a Tandetron AMS System at Nagoya University in 2012 | |||||
| 言語 | en | |||||
| 著者 |
中村, 俊夫
× 中村, 俊夫× 南, 雅代× 小田, 寛貴× 池田, 晃子× 一木, 絵理× 伊藤, 一充× 宮田, 佳樹× 箱崎, 真隆× 太田, 友子× 西田, 真砂美× 池盛, 文数× 城森, 由佳× 加藤, ともみ× 早田, 葵× 長谷, 和磨× 冨山, 慎二× Nakamura, Toshio× Minami, Masayo× Oda, Hirotaka× Ikeda, Akiko× Hitoki, Eri× Itoh, Kazumi× Hakozaki, Masataka× Miyata, Yoshiki× Ohta, Tomoko× Nishida, Masami× Ikemori, Kazufumi× Jyomori, Yuka× Kato, Tomomi× Soda, Aoi× Hase, Kazuma× Tomiyama, Shinji |
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| アクセス権 | ||||||
| アクセス権 | open access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | accelerator mass spectrometry | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | radiocarbon | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | ferro-fluid feedthrough | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | turbo molecular vacuum pump | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | accelerator terminal pump | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | generator | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 14C wiggle matching | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 加速器質量分析 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 放射性炭素 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 磁気流体軸受 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | ターボ分子真空ポンプ | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 加速器ターミナルポンプ | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 発電機 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 14Cウイグルマッチング | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | An AMS system (Model 4130-AMS) dedicated to14C measurements, built by High Voltage Engineering Europe (HVEE), B.V., The Netherlands, was delivered to Nagoya University in 1996/97. Acceptance tests of its performance on carbon isotope measurements were completed in January of 1999, and routine measurements began in mid-2000. Since completion of the acceptance tests in early 1999, we have encountered a lot of troubles with the machine, particularly in 2002. Since the end of 2002, the machine has worked relatively well, expect for minor problems. The standard deviation (one sigma) of the 14C/12C ratio is around ±0.3% to ±0.4% (a bit larger than the uncertainty of about ±0.3% calculated from 14C counting statistics) and that of the corresponding 13C/12C ratio is ±0.03% to ±0.07% ， as are tested for HOxII targets. The number of targets measured was 330, 1430, 2077, 1003, 1,979, 1679, 1772, 1115, 1339, 866, 1300, 1701, 1449, 1634 in each year from 1999 to 2012, respectively, and total number of targets measured by the end of 2012 is 19,674. The Tandetron AMS system worked well in the early half of 2012, with only minor failures. In September, a noise became large from the 12C-beam chopper, in the recombinator system, owing to the problem of a ferro-fluid-feedthrough, which had been used since June, 2008. We have replaced the ferro-fluid feedthrough to a new one. Soon after the chopper problem, the turbo molecular pump (TMP) in the recombinator system was damaged with the bearing of the rotating fan. We sent the pump to the supplier for repair. Because of the broken bearing, the rotating fan was seriously damaged, and we must purchase a new one. On 24th October, a large noise was generated from inside of the accelerator tank. We decided to open the tank and check the parts inside. The problem was also a bearing mounted in the power generator that supplies electric power to a terminal turbo-pump mounted inside the tank. We can get a new generator in a few weeks, because HVEE possessed one for spare by chance. We purchased it and replaced the damage generator on November. After tank opening, inner surfaces of the accelerator tank absorbed water in the atmosphere, we spent much time to remove water vapor from SF6 insulator gas. We had experienced twice of high voltage sparks, but no detectable damage occurred with the accelerator system. We could have restarted 14C measurements at around mid of December. Owing to these difficulties with the machine, the total number of graphite targets measured was 1634 in 2012, smaller in number than that in 2010 (1701), but a larger than in 2011 (1449). | |||||
| 言語 | en | |||||
| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 名古屋大学年代測定総合研究センターシンポジウム報告 | |||||
| 言語 | ja | |||||
| 出版者 | ||||||
| 出版者 | 名古屋大学年代測定資料研究センター | |||||
| 言語 | ja | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 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 | departmental bulletin paper | |||||
| 出版タイプ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| ID登録 | ||||||
| ID登録 | 10.18999/sumrua.24.13 | |||||
| ID登録タイプ | JaLC | |||||
| 書誌情報 |
ja : 名古屋大学加速器質量分析計業績報告書 巻 24, p. 13-24, 発行日 2013-03 |
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| 著者版フラグ | ||||||
| 値 | publisher | |||||
