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  1. F300 宇宙地球環境研究所
  2. F300b 紀要
  3. 名古屋大学加速器質量分析計業績報告書
  4. 25

名古屋大学タンデトロンAMS14Cシステムの現状と利用(2013)

https://doi.org/10.18999/sumrua.25.30
https://doi.org/10.18999/sumrua.25.30
669781db-4c9a-4e01-8275-f6b28c61b8b1
名前 / ファイル ライセンス アクション
sumrua_25_30.pdf sumrua_25_30.pdf (7.5 MB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2015-05-08
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(2013)
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 2013
言語 en
著者 中村, 俊夫

× 中村, 俊夫

WEKO 83824

ja 中村, 俊夫

Search repository
南, 雅代

× 南, 雅代

WEKO 83825

ja 南, 雅代

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小田, 寛貴

× 小田, 寛貴

WEKO 83826

ja 小田, 寛貴

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池田, 晃子

× 池田, 晃子

WEKO 83827

ja 池田, 晃子

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一木, 絵理

× 一木, 絵理

WEKO 83828

ja 一木, 絵理

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箱崎, 真隆

× 箱崎, 真隆

WEKO 83829

ja 箱崎, 真隆

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太田, 友子

× 太田, 友子

WEKO 83830

ja 太田, 友子

Search repository
西田, 真砂美

× 西田, 真砂美

WEKO 83831

ja 西田, 真砂美

Search repository
池盛, 文教

× 池盛, 文教

WEKO 83832

ja 池盛, 文教

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城森, 由佳

× 城森, 由佳

WEKO 83833

ja 城森, 由佳

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加藤, ともみ

× 加藤, ともみ

WEKO 83834

ja 加藤, ともみ

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早田, 葵

× 早田, 葵

WEKO 83835

ja 早田, 葵

Search repository
國田, 圭佑

× 國田, 圭佑

WEKO 83836

ja 國田, 圭佑

Search repository
冨山, 慎二

× 冨山, 慎二

WEKO 83837

ja 冨山, 慎二

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Nakamura, Toshio

× Nakamura, Toshio

WEKO 83838

en Nakamura, Toshio

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Minami, Masayo

× Minami, Masayo

WEKO 83839

en Minami, Masayo

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Oda, Hirotaka

× Oda, Hirotaka

WEKO 83840

en Oda, Hirotaka

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Ikeda, Akiko

× Ikeda, Akiko

WEKO 83841

en Ikeda, Akiko

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Hitoki, Eri

× Hitoki, Eri

WEKO 83842

en Hitoki, Eri

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Hakozaki, Masataka

× Hakozaki, Masataka

WEKO 83843

en Hakozaki, Masataka

Search repository
Ohta, Tomoko

× Ohta, Tomoko

WEKO 83844

en Ohta, Tomoko

Search repository
Nishida, Masami

× Nishida, Masami

WEKO 83845

en Nishida, Masami

Search repository
Ikemori, Kazufumi

× Ikemori, Kazufumi

WEKO 83846

en Ikemori, Kazufumi

Search repository
Jyomori, Yuka

× Jyomori, Yuka

WEKO 83847

en Jyomori, Yuka

Search repository
Kato, Tomomi

× Kato, Tomomi

WEKO 83848

en Kato, Tomomi

Search repository
Soda, Aoi

× Soda, Aoi

WEKO 83849

en Soda, Aoi

Search repository
Kunita, Keisuke

× Kunita, Keisuke

WEKO 83850

en Kunita, Keisuke

Search repository
Tomiyama, Shinji

× Tomiyama, Shinji

WEKO 83851

en Tomiyama, Shinji

Search repository
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 turbo molecular vacuum pump
キーワード
主題Scheme Other
主題 power transfer system for accelerator terminal pump
キーワード
主題Scheme Other
主題 timing belt
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駆動システム
キーワード
主題Scheme Other
主題 タイミングベルト
抄録
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 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, particulayly 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, 1351 in each year from 1999 to 2013, respectively, and total number of targets measured by the end of 2013 is 21,024. We briefly describe the maintenance processes and application results of the AMS system in 2013. The Tandetron AMS system at Nagoya University worked well in the early four months of 2013, with only minor failures. On 10th May, a noise from the accelerator tank became large, almost similar to the large noise generated on 24th October in 2012. The noise in 2012 was generated from the broken bearing mounted in the power generator that supplied electric power to a terminal turbo-pump mounted inside the tank. It took almost one month to replace it to a new one. So, this time soon opened the tank and checked inside the tank, but could find no special objects that might have generated the noise. Since we could not find the source of the noise, and the noise generated in the normal atmospheric pressure was not so large, we have decided to operate the machine under the small but explicitly existing noise. However, at a pressure of 6.5 bar by SF6 gas, the noise became far bigger and we could not operate the machine. We opened the tank again checked every parts inside the tank more carefully, and finally found out that the noise is generated from the timing belt connecting the power motor at the high-energy end and rotating rod which is transferring mechanical power to the generator used for turbo-molecular pomp operation. The belt was a bit too lose and swinging between the two gear wheels during transferring mechanical power. We tightened the belt and the noise disappeared. It took totally two month to notice the source of the noise. On 22nd October, a big noise was generated again from the tank. This time, we also noticed that the terminal voltage was not stable. At the same condition of high-energy power supply, the terminal voltage readout was a bit low than the normal condition, and the readout decreased with time. We considered that the generating voltmeter (GVM) for measuring the high voltage of the accelerator is in the wrong, and decided to replace it to a new one. We replace it and readout of the high voltage became perfect. Owing to these difficulties with the machine, the total number of graphite targets measured was 1351 in 2013, about 300 smaller in number than that in 2012 (1634).
言語 en
内容記述タイプ Abstract
内容記述
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
内容記述タイプ Other
出版者
言語 ja
出版者 名古屋大学年代測定資料研究センター
言語
言語 jpn
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
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.25.30
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 25, p. 30-39, 発行日 2014-03
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