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20 results on '"Iida, Masahisa"'

1. Test result of a full-scale prototype of beam separation dipole magnet for the High-Luminosity LHC upgrade

Author

Sugano, Michinaka, primary, Suzuki, Kento, additional, Nakamoto, Tatsushi, additional, Iida, Masahisa, additional, Ikemoto, Yukiko, additional, Kawamata, Hiroshi, additional, Ogitsu, Toru, additional, Ohhata, Hirokatsu, additional, Okada, Naoki, additional, Okada, Ryutaro, additional, Sasaki, Ken-ichi, additional, Takahashi, Naoto, additional, Tanaka, Kenichi, additional, Terashima, Akio, additional, Kimura, Nobuhiro, additional, Horikoshi, Atsushi, additional, Yanagisawa, Masaki, additional, Chiba, Tomoo, additional, Musso, Andrea, additional, and Todesco, Ezio, additional

Published
2022
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2. Magnetic field measurement system in superconducting combined function magnets for the J-PARC neutrino beam line

Author

Sasaki, Ken-ichi, Tomaru, Takayuki, Ajima, Yasuo, Ogitsu, Toru, Araoka, Osamu, Higashi, Norio, Iida, Masahisa, Kasami, Katsuyu, Kimura, Nobuhiro, Makida, Yasuhiro, Nakamoto, Tatsushi, Ohhata, Hirokatsu, Okamura, Takahiro, Sugawara, Shigekatsu, Tanaka, Ken-ichi, and Yamamoto, Akira

Subjects
Magnetic fields -- Analysis, Neutrino interactions -- Analysis, Superconductors -- Magnetic properties, Business, Electronics, Electronics and electrical industries
Abstract

Magnetic measurements are used for studying the full-scale magnet system assembled with the cryostat for the J-PARC neutrino proton beam line. The beam simulation has shown that the measured values of magnetic field are sufficient for the primary proton beam transport.

Published
2008

3. Performance tests of superconducting combined function magnets in the first full-scale prototype cryostat for the J-PARC neutrino beam line

Author

Sasaki, Ken-Ichi, Kimura, Nobuhiro, Ajima, Yasuo, Nakamoto, Tatsushi, Ogitsu, Toru, Higashi, Norio, Araoke, Osamu, Iida, Masahisa, Kasami, Katsuyu, Makida, Yasuhiro, Ohhata, Hirokatsu, Okamura, Takahiro, Sugawara, Shigekatsu, Tanaka, Ken-Ichi, Tomaru, Takayuki, Terashima, Akio, Yamamoto, Akira, Okada, Yasuyuki, Minato, Tsuneaki, and Ichihara, Tadashi

Subjects
Proton beams -- Research, Particle accelerators -- Design and construction, Neutrinos -- Research, Business, Electronics, Electronics and electrical industries
Abstract

The development and testing of the first full-scale prototype magnet system assembled with the cryostat for the Japan Proton Accelerator Research Complex (J-PARC) proton beam line of neutrino experiment are discussed. Findings reveal the successful cooling of the magnets to 4.5 K by forced flow supercritical helium and excitation up to the current of 7345 A.

Published
2007

4. Test results of superconducting combined function magnets for the J-PARC neutrino beam line

Author

Sasaki, Ken-Ichi, Nakamoto, Tatsushi, Kimura, Nobuhiro, Tomaru, Takayuki, Ogitsu, Toru, Higashi, Norio, Ajima, Yasuo, Aroaka, Osamu, Iida, Masahisa, Kasami, Katsuyu, Makida, Yasuhiro, Ohhata, Hirokatsu, Okamura, Takahiro, Sugawara, Shigekatsu, Tanaka, Ken-Ichi, Terashima, Akio, Yamamoto, Akira, Obana, Tetsuhiro, Okada, Yasuyuki, Minato, Tsuneaki, and Ichihara, Tadashi

Subjects
Magnetic fields -- Measurement, Neutrinos -- Research, Particle accelerators -- Magnetic properties, Business, Electronics, Electronics and electrical industries
Abstract

The article studies the fabrication and testing of three superconducting combined function magnets for the Japan Proton Accelerator Research Complex (J-PARC) neutrino beam line. Findings reveal the observation of excellent excitation and quench performances in the magnets.

Published
2007

6. Improvement in Training Performance by Enhancing Coil Mechanical Support in the Beam Separation Dipole Model Magnet for the HL-LHC Upgrade

Author

Sugano, Michinaka, primary, Ogitsu, Toru, additional, Ohhata, Hirokatsu, additional, Okada, Naoki, additional, Okada, Ryutaro, additional, Sasaki, Ken-ichi, additional, Tanaka, Kenichi, additional, Takahashi, Naoto, additional, Musso, Andrea, additional, Todesco, Ezio, additional, Suzuki, Kento, additional, Nakamoto, Tatsushi, additional, Higashi, Norio, additional, Iida, Masahisa, additional, Ikeda, Hiroshi, additional, Ikemoto, Yukiko, additional, Kawamata, Hiroshi, additional, and Kimura, Nobuhiro, additional

Published
2020
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7. Magnetic Field Design of a Full-Scale Prototype of the HL-LHC Beam Separation Dipole With Geometrical and Iron-Saturation Corrections

Author

Suzuki, Kento, primary, Higashi, Norio, additional, Iida, Masahisa, additional, Ikeda, Hiroshi, additional, Ikemoto, Yukiko, additional, Kawamata, Hiroshi, additional, Kimura, Nobuhiro, additional, Nakamoto, Tatsushi, additional, Ogitsu, Toru, additional, Ohata, Hirokatsu, additional, Okada, Naoki, additional, Okada, Ryutaro, additional, Sasaki, Ken-ichi, additional, Sugano, Michinaka, additional, Tanaka, Kenichi, additional, Takahashi, Naoto, additional, Musso, Andrea, additional, and Todesco, Ezio, additional

Published
2020
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8. Performance of the Quench Protection Heater for the HL-LHC Beam Separation Dipole

Author

Suzuki, Kento, primary, Ohata, Hirokatsu, additional, Okada, Naoki, additional, Okada, Ryutaro, additional, Sasaki, Ken-ichi, additional, Sugano, Michinaka, additional, Tanaka, Kenichi, additional, Takahashi, Naoto, additional, Musso, Andrea, additional, Todesco, Ezio, additional, Higashi, Norio, additional, Iida, Masahisa, additional, Ikeda, Hiroshi, additional, Ikemoto, Yukiko, additional, Kawamata, Hiroshi, additional, Kimura, Nobuhiro, additional, Nakamoto, Tatsushi, additional, and Ogitsu, Toru, additional

Published
2020
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9. Development of 2-m Model Magnet of the Beam Separation Dipole With New Iron Cross Section for the High-Luminosity LHC Upgrade

Author

Sugano, Michinaka, primary, Enomoto, Shun, additional, Higashi, Norio, additional, Iida, Masahisa, additional, Ikemoto, Yukiko, additional, Kawamata, Hiroshi, additional, Kimura, Nobuhiro, additional, Nakamoto, Tatsushi, additional, Ogitsu, Toru, additional, Ohhata, Hirokatsu, additional, Okada, Naoki, additional, Okada, Ryutaro, additional, Sasaki, Keni-chi, additional, Suzuki, Kento, additional, Tanaka, Kenichi, additional, Takahashi, Naoto, additional, Musso, Andrea, additional, and Todesco, Ezio, additional

Published
2019
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10. Test Result of the HL-LHC Beam Separation Dipole Model Magnet With the New Iron Cross Section

Author

Suzuki, Kento, primary, Enomoto, Shun, additional, Higashi, Norio, additional, Iida, Masahisa, additional, Ikemoto, Yukiko, additional, Kawamata, Hiroshi, additional, Kimura, Nobuhiro, additional, Nakamoto, Tatsushi, additional, Ogitsu, Toru, additional, Ohata, Hirokatsu, additional, Okada, Naoki, additional, Okada, Ryutaro, additional, Sugano, Michinaka, additional, Musso, Andrea, additional, and Todesco, Ezio, additional

Published
2019
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11. Quench Protection Heater Study With the 2-m Model Magnet of Beam Separation Dipole for the HL-LHC Upgrade

Author

Suzuki, Kento, primary, Enomoto, Shun, additional, Higashi, Norio, additional, Iida, Masahisa, additional, Ikemoto, Yukiko, additional, Kawamata, Hiroshi, additional, Kimura, Nobuhiro, additional, Nakamoto, Tatsushi, additional, Ogitsu, Toru, additional, Ohata, H., additional, Okada, Naoki, additional, Okada, Ryutaro, additional, Sugano, Michinaka, additional, Musso, Andrea, additional, and Todesco, Ezio, additional

Published
2018
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12. Field Measurement to Evaluate Iron Saturation and Coil End Effects in a Modified Model Magnet of Beam Separation Dipole for the HL-LHC Upgrade

Author

Enomoto, Shun, primary, Sugano, Michinaka, additional, Nakamoto, Tatsushi, additional, Suzuki, Kento, additional, Okada, Naoki, additional, Kawamata, Hiroshi, additional, Sasaki, Ken-ichi, additional, Ikemoto, Yukiko, additional, Tanaka, Kenichi, additional, Ohhata, Hirokatsu, additional, Iida, Masahisa, additional, Okada, Ryutaro, additional, Higashi, Norio, additional, Takahashi, Naoto, additional, Ogitsu, Toru, additional, Kimura, Nobuhiro, additional, Musso, Andrea, additional, and Todesco, Ezio, additional

Published
2018
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13. Fabrication and Test Results of the First 2 m Model Magnet of Beam Separation Dipole for the HL-LHC Upgrade

Author

Sugano, Michinaka, primary, Nakamoto, Tatsushi, additional, Enomoto, Shun, additional, Kawamata, Hiroshi, additional, Okada, Naoki, additional, Okada, Ryutaro, additional, Sasaki, Ken-ichi, additional, Ogitsu, Toru, additional, Kimura, Nobuhiro, additional, Tanaka, Kenichi, additional, Ohata, Hirokatsu, additional, Iida, Masahisa, additional, Higashi, Norio, additional, Takahashi, Naoto, additional, Sugawara, Sigekatu, additional, Musso, Andrea, additional, and Todesco, Ezio, additional

Published
2017
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14. Magnetic Field Measurement of 2-m-Long Model of Beam Separation Dipole for the HL-LHC Upgrade

Author

Enomoto, Shun, primary, Sugano, Michinaka, additional, Nakamoto, Tatsushi, additional, Okada, Naoki, additional, Kawamata, Hiroshi, additional, Sasaki, Ken-ichi, additional, Tanaka, Kenichi, additional, Ohhata, Hirokatsu, additional, Iida, Masahisa, additional, Okada, Ryutaro, additional, Takahashi, Naoto, additional, Sugawara, Shigekatu, additional, Higashi, Norio, additional, Ogitsu, Toru, additional, Kimura, Nobuhiro, additional, Musso, Andrea, additional, and Todesco, Ezio, additional

Published
2017
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15. Beam and SKS spectrometers at the K1.8 beam line

Author

Takahashi, Toshiyuki, primary, Adachi, Satoshi, additional, Agnello, Michelangelo, additional, Aoki, Kanae, additional, Araoka, Osamu, additional, Bassalleck, Bernd, additional, Botta, Elena, additional, Bufalino, Stefania, additional, Chiga, Nobuyuki, additional, Evtoukhovitch, Petr, additional, Feliciello, Alessandro, additional, Franz, Juergen, additional, Fujioka, Hiroyuki, additional, Hayakawa, Shuhei, additional, Hirose, Erina, additional, Honda, Ryotaro, additional, Hosomi, Kenji, additional, Ichikawa, Yudai, additional, Igarashi, Youichi, additional, Iida, Masahisa, additional, Ikeno, Masahiro, additional, Itahashi, Kenta, additional, Ishibashi, Naoya, additional, Ishimoto, Shigeru, additional, Iwasaki, Ruri, additional, Kakiguchi, Yutaka, additional, Kasami, Katsuyu, additional, Kim, Sunji, additional, Kiuchi, Ryuta, additional, Koike, Takeshi, additional, Komatsu, Yusuke, additional, Kustov, Alexandr, additional, Mjavia, David, additional, Makida, Yasuhiro, additional, Marcello, Simonetta, additional, Maruta, Tomofumi, additional, Masumoto, Shinichi, additional, Matsuoka, Kenji, additional, Miwa, Koji, additional, Moiseenko, Anatolii, additional, Moritsu, Manabu, additional, Nagae, Tomofumi, additional, Naruki, Megumi, additional, Noumi, Hiroyuki, additional, Ohhata, Hirokazu, additional, Okamura, Takahiro, additional, Ota, Ryosuke, additional, Saito, Masatoshi, additional, Sakaguchi, Atsushi, additional, Samoilov, Valentin, additional, Sato, Misako, additional, Sato, Yoshinori, additional, Sekimoto, Michiko, additional, Shirakabe, Yoshihisa, additional, Shirotori, Kotaro, additional, Sugimura, Hitoshi, additional, Suzuki, Shoji, additional, Suzuki, Yoshihiro, additional, Takahashi, Hitoshi, additional, Takahashi, Tomonori N., additional, Tamura, Hirokazu, additional, Tanaka, Manobu, additional, Tauchi, Kazuya, additional, Tanaka, Toshiyuki, additional, Tanida, Kiyoshi, additional, Tokiyasu, Atsushi O., additional, Yoshida, Kotaro, additional, Toyoda, Akihisa, additional, Tsamalaidze, Zviadi, additional, Uchida, Tomohisa, additional, Ukai, Mifuyu, additional, Watanabe, Hiroaki, additional, Yamamoto, Takeshi O., additional, Yonemoto, Yoshio, additional, and Yoon, Choong-Jae, additional

Published
2012
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16. Commissioning Results of Superconducting Magnet System for the Neutrino Beam Line

Author

Sasaki, Ken-ichi, primary, Okamura, Takahiro, additional, Kimura, Nobuhiro, additional, Nakamoto, Tatsushi, additional, Ohhata, Hirokatsu, additional, Makida, Yasuhiro, additional, Ogitsu, Toru, additional, Araoka, Osamu, additional, Iida, Masahisa, additional, Suzuki, Shoji, additional, Tanaka, Ken-ichi, additional, Tomaru, Takayuki, additional, and Yamamoto, Akira, additional

Published
2010
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19. Test Results of Superconducting Combined Function Prototype Magnets for the J-PARC Neutrino Beam Line.

Author

Sasaki, Ken-ichi, Nakamoto, Tatsushi, Higashi, Norio, Kimura, Nobuhiro, Ajima, Yasuo, Ogitsu, Toru, Tomaru, Takayuki, Iida, Masahisa, Ohhata, Hirokatsu, Sugawara, Shigekatsu, Tanaka, Ken-ichi, Makida, Yasuhiro, Okamura, Takahiro, Araoka, Osamu, Kasami, Katsuyu, and Yamamoto, Akira

Subjects
MAGNETICS, ELECTRIC conductivity, MAGNETS, ELECTRICAL conductors, ELECTRONICS, RESEARCH
Abstract

Superconducting combined function magnets are adopted for the 50 GeV, 750 kW proton beam line for the J-PARC neutrino experiment, and two full-scale prototype magnets have been developed successfully at KEK. In the cold tests, both prototypes were excited up to 7700 A without spontaneous quenches. The measured field quality of the both prototypes agreed well with the design field, indicating that the fabrication process has no major problem. The heater quench tests of the first prototype, however, showed that the magnet was not self-protected. Consequently, the design was revised and quench protection heaters were adopted. In quench heater tests of the second prototype magnet using small sheet heaters, the fundamental characteristics of the quench protection heaters were studied. [ABSTRACT FROM AUTHOR]

Published
2006
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20. Operation of superconducting combined function magnet system for J-PARC neutrino beam line

Author

Ogitsu, Toru, Ajima, Yasuo, Araoka, Osamu, Fujii, Yoshiaki, Hastings, Nick, Higashi, Norio, IIda, Masahisa, Ichikawa, Atsuko, Kakuno, Hidekazu, Kimura, Nobuhiro, Kobayashi, Takashi, Makida, Yasuhiro, Nakadaira, Takeshi, Nakamoto, Tatsushi, Ohhata, Hirokatsu, Okamura, Takahiro, Sakashita, Ken, Sasaki, Ken-Ichi, Shibata, Masahiro, Suzuki, Shoji, Tanaka, Ken-Ichi, Terashima, Akio, Tomaru, Takayuki, and Yamamoto, Akira

Subjects
07 Accelerator Technology, T10 Superconducting Magnets, Accelerator Physics
Abstract

A superconducting magnet system for the J-PARC neutrino beam line was completed at the end of 2008. The system consists of 14 doublet cryostats; each contains 2 combined function magnets (SCFM). The SCFM uses two single layer left/right asymmetric coils that produce a dipole field of 2.6 T and quadrupole of 19 T/m. By 2008, the world first SCFM had been developed and tested successfully at KEK. The mass-production was started in 2005, and completed by summer 2008. The system installation and commissioning took place from Feb. 2008 to Mar. 2009. The beam operation was started in April 2009 and the first neutrino beam was generated on April 23rd. Since then beam operation and commissioning to increase beam intensity has been performed to achieve the near term milestone of 100 kW beam operation. The paper briefly summarizes the history of SCFM development and the system construction as an introduction to a discussion on beam operation experience of the SCFM system., Proceedings of the 1st International Particle Accelerator Conference, IPAC2010, Kyoto, Japan

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