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Journal Articles

High oxide-ion conductivity in Si-deficient La$$_{9.565}$$(Si$$_{5.826}$$[]$$_{0.174}$$)O$$_{26}$$ apatite without interstitial oxygens due to the overbonded channel oxygens

Fujii, Kotaro*; Yashima, Masatomo*; Hibino, Keisuke*; Shiraiwa, Masahiro*; Fukuda, Koichiro*; Nakayama, Susumu*; Ishizawa, Nobuo*; Hanashima, Takayasu*; Ohara, Takashi

Journal of Materials Chemistry A, 6(23), p.10835 - 10846, 2018/06

 Times Cited Count:12 Percentile:61.53(Chemistry, Physical)

Journal Articles

The Failure example of the Tokai tandem accelerator

Matsuda, Makoto; Abe, Shinichi; Ishizaki, Nobuhiro; Tayama, Hidekazu; Nakanoya, Takamitsu; Kabumoto, Hiroshi; Nakamura, Masahiko; Kutsukake, Kenichi; Otokawa, Yoshinori; Asozu, Takuhiro; et al.

Dai-27-Kai Tandemu Kasokuki Oyobi Sono Shuhen Gijutsu No Kenkyukai Hokokushu, p.142 - 145, 2015/03

no abstracts in English

Journal Articles

Development of intense high-energy noble gas ion beams from the in-terminal ion injector of tandem accelerator using an ECR ion source

Matsuda, Makoto; Nakanoya, Takamitsu; Hanashima, Susumu; Takeuchi, Suehiro

Nuclear Instruments and Methods in Physics Research A, 654(1), p.45 - 51, 2011/10

 Times Cited Count:4 Percentile:36.36(Instruments & Instrumentation)

In order to develop new beam species of highly charged noble gas ions, we have constructed an in-terminal heavy ion injector in the JAEA-Tokai tandem accelerator using a compact ECR ion source. This work was associated with a lot of development to operate the ion source on the 20UR Pelletron high voltage terminal in high pressure SF$$_{6}$$ gas environment. Highly charged ions of N, O, Ne, Ar, Kr and Xe have been accelerated satisfactorily. Operating data integrated during many years long beam delivery service are summarized.

Journal Articles

Development of ion beam applications for JAEA-Tokai tandem accelerator

Matsuda, Makoto; Asozu, Takuhiro; Sataka, Masao; Hanashima, Susumu; Nakamura, Masahiko; Kabumoto, Hiroshi; Kutsukake, Kenichi

Dai-23-Kai Tandemu Kasokuki Oyobi Sono Shuhen Gijutsu No Kenkyukai Hokokushu, p.65 - 68, 2011/07

no abstracts in English

Journal Articles

The Earthquake-damage of the JAEA-Tokai tandem accelerator

Matsuda, Makoto; Osa, Akihiko; Abe, Shinichi; Ishizaki, Nobuhiro; Tayama, Hidekazu; Nakanoya, Takamitsu; Kabumoto, Hiroshi; Nakamura, Masahiko; Kutsukake, Kenichi; Otokawa, Yoshinori; et al.

Dai-24-Kai Tandemu Kasokuki Oyobi Sono Shuhen Gijutsu No Kenkyukai Hokokushu, p.51 - 54, 2011/07

no abstracts in English

Journal Articles

Present status of JAEA-Tokai tandem accelerator facility

Ishizaki, Nobuhiro; Ishii, Tetsuro; Abe, Shinichi; Hanashima, Susumu; Osa, Akihiko; Tayama, Hidekazu; Matsuda, Makoto; Nakanoya, Takamitsu; Kabumoto, Hiroshi; Nakamura, Masahiko; et al.

Dai-23-Kai Tandemu Kasokuki Oyobi Sono Shuhen Gijutsu No Kenkyukai Hokokushu, p.13 - 16, 2010/11

no abstracts in English

Journal Articles

Use of an ECR ion source in the large electrostatic accelerator

Matsuda, Makoto; Asozu, Takuhiro; Kutsukake, Kenichi; Nakanoya, Takamitsu; Hanashima, Susumu; Takeuchi, Suehiro

Proceedings of 6th Annual Meeting of Particle Accelerator Society of Japan (CD-ROM), p.827 - 829, 2010/03

no abstracts in English

Journal Articles

Present status of JAEA-Tokai tandem accelerator facility

Matsuda, Makoto; Ishii, Tetsuro; Tsukihashi, Yoshihiro; Hanashima, Susumu; Abe, Shinichi; Osa, Akihiko; Ishizaki, Nobuhiro; Tayama, Hidekazu; Nakanoya, Takamitsu; Kabumoto, Hiroshi; et al.

Dai-22-Kai Tandemu Kasokuki Oyobi Sono Shuhen Gijutsu No Kenkyukai Hokokushu, p.10 - 14, 2010/01

no abstracts in English

Journal Articles

Highly charged ion injector in the terminal of tandem accelerator

Matsuda, Makoto; Asozu, Takuhiro; Nakanoya, Takamitsu; Kutsukake, Kenichi; Hanashima, Susumu; Takeuchi, Suehiro

Journal of Physics; Conference Series, 163, p.012112_1 - 012112_4, 2009/06

 Times Cited Count:3 Percentile:76.56

Journal Articles

Present status of JAEA-Tokai Tandem Accelerator

Matsuda, Makoto; Sataka, Masao; Tsukihashi, Yoshihiro; Hanashima, Susumu; Abe, Shinichi; Osa, Akihiko; Ishizaki, Nobuhiro; Nakanoya, Takamitsu; Kabumoto, Hiroshi; Nakamura, Masahiko; et al.

JAEA-Conf 2008-012, p.39 - 43, 2009/03

no abstracts in English

JAEA Reports

Improvement the transmission of ion beams and replacement of charge analysis electromagnet coil at tandem accelerator

Ishizaki, Nobuhiro; Matsuda, Makoto; Hanashima, Susumu; Nakamura, Masahiko; Kutsukake, Kenichi; Otokawa, Yoshinori; Asozu, Takuhiro

JAEA-Technology 2008-055, 24 Pages, 2008/08

JAEA-Technology-2008-055.pdf:6.28MB

The JAEA-Tokai folding-type tandem accelerator has been operated for 25 years. There are many optical devices at the terminal, such as a 180-degeree bending magnet (charge-analysis electromagnet) and electrostatic quadrupole lens, used for transporting ion beams from low-energy accelerating tubes to high-energy accelerating tubes. We have replaced the aged coil inside the 180-degeree bending magnet for a maintenance period of 2007. At this time, we have carried out the project to align the whole optical devices at the terminal. Precise measurement of the positions for these devices revealed that they were misaligned by 5 mm at the maximum deviation. By aligning these devices with the standard beam axis, we have improved the transmission of ion beams and increased beam currents with stable operation.

Journal Articles

Present status of JAEA-Tokai tandem accelerator

Matsuda, Makoto; Sataka, Masao; Takeuchi, Suehiro; Tsukihashi, Yoshihiro; Hanashima, Susumu; Abe, Shinichi; Osa, Akihiko; Ishizaki, Nobuhiro; Tayama, Hidekazu; Nakanoya, Takamitsu; et al.

JAEA-Conf 2008-005, p.42 - 45, 2008/03

In FY2006, a tandem accelerator was operated for 201days. The maximum voltage was 18 MV and the accelerated ion species was 19 elements (26 nuclides). As the trouble case which occurred previous year, the change of the beam shape occurred often in the injection beam line of the tandem accelerator. The cause was the contact failure of the pole connector of the electrostatics quadrupole lens. Generally, it was difficult to confirm the connection status of the opened pole but we specified a connection abnormal part by the capacitive coupling method. This technique is useful technology which can be applied to the other electrostatics optics elements. Because the charging electric current flowed only about usual about 60% and the terminal voltage became unstable, we opened a tank and checked the charging system. As a result, a problem was confirmed to the damaging of resistance and the installation of the cable. In the seminar, the operation, maintenance and the accelerator development of the tandem accelerator in FY2006 are described.

JAEA Reports

Screening test of relays used under pressurized sulfur hexafluoride (SF$$_{6}$$)

Kutsukake, Kenichi; Matsuda, Makoto; Hanashima, Susumu; Obara, Kenjiro*

JAEA-Technology 2007-068, 52 Pages, 2008/01

JAEA-Technology-2007-068.pdf:3.02MB

Many measurement and control equipment is installed inside of a high voltage terminal of the JAEA-Tokai tandem accelerator and operated under pressurized sulfur hexafluoride (SF$$_{6}$$) of 0.5 MPa. This screening test has been carried out to select a relay, which is usable under the SF$$_{6}$$ for turn on and off a power supply of the devices, from commercial relays used in the atmospheric condition. Four kinds of relay were tested: electromechanical relay (EMR), magnet contactor (MAG), solid-state relay (SSR) and hybrid relay (HYB). Temperature of the relay, change of appearance of the relay including contact surface using the SEM and EDS were measured and observed. The EMR and the MAG showed irregular contact because of the sulfide or fluoride, and these compounds which are formed by chemical reaction between metals and sulfur or hydrogen fluoride due to dissociation of SF$$_{6}$$ in electric arcs. Solid-state relay and hybrid relay are available in the pressurized SF$$_{6}$$ of 0.5 MPa.

Journal Articles

A Renewal plan of a power supply for the folding magnet on the high voltage terminal of JAEA-Tokai tandem accelerator

Hanashima, Susumu

Dai-19-Kai Tandemu Kasokuki Oyobi Sono Shuhen Gijutsu No Kenkyukai Hokokushu, p.50 - 53, 2007/01

no abstracts in English

Journal Articles

The Trouble occurred at the JAEA tandem accelerator and that correspondence

Kutsukake, Kenichi; Nakamura, Masahiko; Matsuda, Makoto; Hanashima, Susumu; Horie, Katsuzo

Dai-19-Kai Tandemu Kasokuki Oyobi Sono Shuhen Gijutsu No Kenkyukai Hokokushu, p.92 - 94, 2007/01

no abstracts in English

Journal Articles

Present status of JAEA-Tokai tandem accelerator

Matsuda, Makoto; Takeuchi, Suehiro; Tsukihashi, Yoshihiro; Hanashima, Susumu; Abe, Shinichi; Osa, Akihiko; Ishizaki, Nobuhiro; Tayama, Hidekazu; Nakanoya, Takamitsu; Kabumoto, Hiroshi; et al.

Dai-19-Kai Tandemu Kasokuki Oyobi Sono Shuhen Gijutsu No Kenkyukai Hokokushu, p.9 - 12, 2007/01

no abstracts in English

Journal Articles

Development of the heavy ion injector in the high voltage terminal

Matsuda, Makoto; Nakanoya, Takamitsu; Kutsukake, Kenichi; Hanashima, Susumu; Takeuchi, Suehiro

Proceedings of 4th Annual Meeting of Particle Accelerator Society of Japan and 32nd Linear Accelerator Meeting in Japan (CD-ROM), p.736 - 738, 2007/00

no abstracts in English

Journal Articles

Present status of JAEA-Tokai tandem accelerator

Matsuda, Makoto; Takeuchi, Suehiro; Tsukihashi, Yoshihiro; Hanashima, Susumu; Abe, Shinichi; Osa, Akihiko; Ishizaki, Nobuhiro; Tayama, Hidekazu; Nakanoya, Takamitsu; Kabumoto, Hiroshi; et al.

Proceedings of 3rd Annual Meeting of Particle Accelerator Society of Japan and 31st Linear Accelerator Meeting in Japan, p.275 - 277, 2006/00

no abstracts in English

Journal Articles

Status report of the JAERI tandem accelerator

Matsuda, Makoto; Takeuchi, Suehiro; Tsukihashi, Yoshihiro; Horie, Katsuzo*; Ouchi, Isao*; Hanashima, Susumu; Abe, Shinichi; Ishizaki, Nobuhiro; Tayama, Hidekazu; Nakanoya, Takamitsu; et al.

Dai-18-Kai Tandemu Kasokuki Oyobi Sono Shuhen Gijutsu No Kenkyukai Hokokushu, p.11 - 14, 2005/11

no abstracts in English

Journal Articles

Renewal of interlock system for the JAERI tandem accelerator facility

Nakamura, Masahiko; Hanashima, Susumu; Nakanoya, Takamitsu; Yoshida, Tadashi*

Dai-18-Kai Tandemu Kasokuki Oyobi Sono Shuhen Gijutsu No Kenkyukai Hokokushu, p.84 - 87, 2005/11

no abstracts in English

54 (Records 1-20 displayed on this page)