Abstract
Tandem accelerator in Science Faculty, Kyoto University was renewed from 5 MV in the highest terminal voltage of Van de Graaff to 8 MV of Peletron in 1992. And, AMS effective for cosmic ray, dating, environment measurement and so forth is determined to a column of collaborative studies by universities and institutes in Japan. On this renewal, because of using high energy beam transportation of the present tandem accelerator, super high sensitivity measurement of long half-life radioactive isotopes of heavy elements such as {sup 36}Cl, {sup 41}Ca, {sup 129}I and so forth is aimed, although having some limitations due to small magnet. The accelerator is active in characteristics of the middle size tandem accelerator, and developing {sup 14}C measurement for its standard technology, as aiming at {sup 36}Cl measurement, at first. As a result, in this tandem accelerator stable and high beam transmittance could be obtained by adding a slit at negative ion source to make emittance of incident beam smaller. {sup 14}C/{sup 12}C ratio of Modan`s sample obtained by graphitizing NBS oxalic acid and Ded`s sample consisting of mineral graphite produced in Sri Lanka are measured to confirm better reproductivity of this system. Future development of successive incident method
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Nakamura, Masanobu;
Tazawa, Yuji;
Matsumoto, Hiroshi;
Hirose, Masanori;
[1]
Ogino, Koya;
Kohno, Masuchika;
Funaba, Hiroyuki
- Kyoto Univ. (Japan). Faculty of Science
Citation Formats
Nakamura, Masanobu, Tazawa, Yuji, Matsumoto, Hiroshi, Hirose, Masanori, Ogino, Koya, Kohno, Masuchika, and Funaba, Hiroyuki.
Accelerator mass analysis at tandem accelerator in Kyoto University.
Japan: N. p.,
1996.
Web.
Nakamura, Masanobu, Tazawa, Yuji, Matsumoto, Hiroshi, Hirose, Masanori, Ogino, Koya, Kohno, Masuchika, & Funaba, Hiroyuki.
Accelerator mass analysis at tandem accelerator in Kyoto University.
Japan.
Nakamura, Masanobu, Tazawa, Yuji, Matsumoto, Hiroshi, Hirose, Masanori, Ogino, Koya, Kohno, Masuchika, and Funaba, Hiroyuki.
1996.
"Accelerator mass analysis at tandem accelerator in Kyoto University."
Japan.
@misc{etde_588132,
title = {Accelerator mass analysis at tandem accelerator in Kyoto University}
author = {Nakamura, Masanobu, Tazawa, Yuji, Matsumoto, Hiroshi, Hirose, Masanori, Ogino, Koya, Kohno, Masuchika, and Funaba, Hiroyuki}
abstractNote = {Tandem accelerator in Science Faculty, Kyoto University was renewed from 5 MV in the highest terminal voltage of Van de Graaff to 8 MV of Peletron in 1992. And, AMS effective for cosmic ray, dating, environment measurement and so forth is determined to a column of collaborative studies by universities and institutes in Japan. On this renewal, because of using high energy beam transportation of the present tandem accelerator, super high sensitivity measurement of long half-life radioactive isotopes of heavy elements such as {sup 36}Cl, {sup 41}Ca, {sup 129}I and so forth is aimed, although having some limitations due to small magnet. The accelerator is active in characteristics of the middle size tandem accelerator, and developing {sup 14}C measurement for its standard technology, as aiming at {sup 36}Cl measurement, at first. As a result, in this tandem accelerator stable and high beam transmittance could be obtained by adding a slit at negative ion source to make emittance of incident beam smaller. {sup 14}C/{sup 12}C ratio of Modan`s sample obtained by graphitizing NBS oxalic acid and Ded`s sample consisting of mineral graphite produced in Sri Lanka are measured to confirm better reproductivity of this system. Future development of successive incident method is planned to test actual carbon samples. (G.K.)}
place = {Japan}
year = {1996}
month = {Dec}
}
title = {Accelerator mass analysis at tandem accelerator in Kyoto University}
author = {Nakamura, Masanobu, Tazawa, Yuji, Matsumoto, Hiroshi, Hirose, Masanori, Ogino, Koya, Kohno, Masuchika, and Funaba, Hiroyuki}
abstractNote = {Tandem accelerator in Science Faculty, Kyoto University was renewed from 5 MV in the highest terminal voltage of Van de Graaff to 8 MV of Peletron in 1992. And, AMS effective for cosmic ray, dating, environment measurement and so forth is determined to a column of collaborative studies by universities and institutes in Japan. On this renewal, because of using high energy beam transportation of the present tandem accelerator, super high sensitivity measurement of long half-life radioactive isotopes of heavy elements such as {sup 36}Cl, {sup 41}Ca, {sup 129}I and so forth is aimed, although having some limitations due to small magnet. The accelerator is active in characteristics of the middle size tandem accelerator, and developing {sup 14}C measurement for its standard technology, as aiming at {sup 36}Cl measurement, at first. As a result, in this tandem accelerator stable and high beam transmittance could be obtained by adding a slit at negative ion source to make emittance of incident beam smaller. {sup 14}C/{sup 12}C ratio of Modan`s sample obtained by graphitizing NBS oxalic acid and Ded`s sample consisting of mineral graphite produced in Sri Lanka are measured to confirm better reproductivity of this system. Future development of successive incident method is planned to test actual carbon samples. (G.K.)}
place = {Japan}
year = {1996}
month = {Dec}
}