Performance of a Superconducting Magnet System Operated in the Super Omega Muon Beam Line at J-PARC

被引：0
|
作者：
Makida, Yasuhiro [1 ]
Ikedo, Yutaka [1 ]
Ogitsu, Toru [1 ]
Shimomura, Koichiro [1 ]
Miyake, Yasuhiro [1 ]
Yoshida, Makoto [1 ]
Adachi, Taihei [1 ]
Kadono, Ryosuke [1 ]
Kawamura, Naritoshi [1 ]
Strasser, Patric [1 ]
Koda, Akihiro [1 ]
Fujimori, Hiroshi [1 ]
Nishiyama, Kusuo [1 ]
Ohhata, Hirokatsu [1 ]
Okamura, Takahiro [1 ]
Okada, Ryutaro [1 ]
Orikasa, Tomofumi [2 ]
机构：
[1] KEK, J PARC, Shirakata 203-1, Naka, Ibaraki, Japan
[2] Kehin Product Operat, Yokohama, Kanagawa, Japan
来源：
ADVANCES IN CRYOGENIC ENGINEERING | 2014年 / 1573卷
关键词：
Muon; cryocooler;
D O I：
10.1063/1.4860734
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A superconducting magnet system, which is composed of an 8 m long solenoid for transportation and 12 short solenoids for focusing, has been developed for Muon Science Establishment facility of J-PARC. The transport solenoid is composed of a 6 m straight section connected to a 45 degree curved section at each end. Muons of various momenta and of both electric charges are transported through the solenoid inner bore with an effective diameter of 0.3 m, where 2 T magnetic field is induced. There are 12 focusing solenoids with an effective bore diameter of 0.6 m and a length of 0.35 m arranged on a straight line at suitable intervals. The maximum central field of each focusing solenoid is 0.66 T. All solenoid coils are cooled by GM cryocoolers through their own conductions. The magnet system has been installed into the beam line in the summer of 2012, and its performance has been checked. Beam commissioning has been carried out since October 2012. During beam operation, temperature rise over 6 K in the transport solenoid due to a nuclear heating from the muon production target is observed at beam intensity of about 300 kW.
引用
收藏
页码：438 / 447
页数：10
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