Indirectly Cooled Radiation-Resistant Magnets for Hadron Target Station at J-PARC

被引：5

作者：

Takahashi, H. ^{[1
]}

Agari, K. ^{[1
]}

Hirose, E. ^{[1
]}

Ieiri, M. ^{[1
]}

Iio, M. ^{[2
]}

Katoh, Y. ^{[1
]}

Kiyomichi, A. ^{[1
]}

Minakawa, M. ^{[1
]}

Muto, R. ^{[1
]}

Naruki, M. ^{[1
]}

Noumi, H. ^{[3
]}

Sato, Y. ^{[1
]}

Sawada, S. ^{[1
]}

Shirakabe, Y. ^{[1
]}

Suzuki, Y. ^{[1
]}

Takasaki, M. ^{[1
]}

Tanaka, K. H. ^{[1
]}

Toyoda, A. ^{[1
]}

Watanabe, H. ^{[1
]}

Yamanoi, Y. ^{[1
]}

Ogata, K. ^{[4
]}

Saijyo, M. ^{[4
]}

Saitoh, Y. ^{[4
]}

Katoh, K. ^{[4
]}

Yahata, K. ^{[4
]}

机构：

[1] High Energy Accelerator Res Org KEK, Inst Particle & Nucl Studies, Hadron Beam Line Grp, Tsukuba, Ibaraki 3050801, Japan

[2] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan

[3] Osaka Univ, Res Ctr Nucl Phys RCNP, Ibaraki 5670047, Japan

[4] TOKIN Machinery Corp, Taihaku Ku, Sendai, Miyagi 9820003, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2010年 / 20卷 / 03期

关键词：

High intensity accelerator; high intensity beam lines; radiation resistant magnet;

D O I：

10.1109/TASC.2009.2038930

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The target station in the hadron experimental facility at J-PARC consists of a production target and a huge vacuum chamber in which several secondary-beam-line magnets can work. This vacuum chamber system aims to remove the vacuum beam pipe from the magnet gap, because the cooling of the beam pipe is the most serious problem in the high intensity beam facility. We have developed indirectly cooled radiation-resistant magnets for the hadron target station. Their coils are made of solid-conductor type mineral-insulation cables and stainless-steel water pipes. They have the great advantages that electric circuits can be completely independent of water pass. The mechanical strength and the insulation performance of the coil are significantly improved also because the insulation water pipes can be avoided from the water pass. A C-type sector dipole and a figure-8-type quadrupole magnet have been fabricated by using indirectly cooled radiation-resistant magnet technology, and installed in the vacuum chamber. We have succeeded to operate them in vacuum stably with the current of DC 1000 A by improving the end structure of the MIC coils and increasing their emissivity. These magnets have been used for the real beam operation without any serious problems.

引用

页码：344 / 347

页数：4

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