WEKO3
アイテム
名古屋大学タンデトロンAMS14Cシステムの現状と利用(2011)
https://doi.org/10.18999/sumrua.23.18
https://doi.org/10.18999/sumrua.23.18154e38dc-2088-4225-80ea-3356cfc2fa48
名前 / ファイル | ライセンス | アクション |
---|---|---|
![]() |
|
Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2013-06-03 | |||||
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(2011) | |||||
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 2011 | |||||
言語 | en | |||||
著者 |
南, 雅代
× 南, 雅代× 小田, 寛貴× 池田, 晃子× 宮田, 佳樹× 太田, 友子× 西田, 真砂美× 池盛, 文数× 城森, 由佳× 近藤, 宏樹× 吉光, 貴裕× 坂田, 健× 加藤, ともみ× 長谷, 和磨× Nakamura, Toshio× Minami, Masayo× Oda, Hirotaka× Ikeda, Akiko× Miyata, Yoshiki× Ohta, Tomoko× Nishida, Masami× Ikemori, Kazufumi× Jyomori, Yuka× Kondo, Hiroki× Yoshimitsu, Takahiro× Sakata, Ken× Kato, Tomomi× Hase, Kazumaro |
|||||
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 | failure in target exchange | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | samples with lesser amount of carbon | |||||
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 | ターゲット交換の失敗 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 微少量炭素試料 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | An AMS system (Model 4130-AMS) dedicated to 14C 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 January of 1999, and routine measurements began in mid-2000. Since completion of the acceptance tests 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 ±O.3% to ±O,4% (a bit larger than the uncertainty of about ±O.3% calculated from 14C counting statistics) and that of the corresponding 13C/12C ratio is ±O.03% to ±O.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 in each year from 1999 to 2011, respectively, and total number of targets measured by the end of 2011 is 18,040. The Tandetron AMS system worked well in the early half of 2011, with only minor failures. In August, mistakes of target exchange during the batch measurement runs became frequent. In every mistake, we have to shut down the ion source to open the target chamber to check the source of the problems. After changing interface cards of the ion source control, mistakes became fewer. However, in December, the mistakes of target exchange during the batch measurement runs became quite frequent. In the end, the hand at the end of the rod to grasp the targets in the ion source was broken. We have replaced it to a new one. We also replaced interface cards of the ion source control completely to overcome the problems successfully. Another problem was to cool down the power supply of the high energy analyzing magnets. We should have to frequently clean the water pipe for cooling. About high voltage sparks, we have regularly removed water vapor from SF6 insulation gas. It seems successful, because we had no sparks in 2011. The last spark occurred on February 22nd in 2010. Owing to these difficulties of the machine, the total number of graphite targets measured was 1449, smaller in number than that in 2010 (1701). | |||||
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.23.18 | |||||
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 23, p. 18-26, 発行日 2012-03 |
|||||
著者版フラグ | ||||||
値 | publisher |