Test operation of superconductive part in 40 tesla class hybrid magnet system
✍ Scribed by Kiyoshi Inoue; Takao Takeuchi; Kanji Takehana; Kikuo Itoh; Tsukasa Kiyoshi; Hiroshi Maeda; Tsutomu Fujioka; Satoru Murase; Yoshihiro Wachi; Satoshi Hanai; Yoshikazu Dozono; Tetsuya Kojo
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 723 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0011-2275
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✦ Synopsis
We are constructing a 40 T class hybrid magnet composed of a 25 T inner resistive part and a 15 T outer superconductive part. We have performed successfully the first test operation of the superconductive part.
It took about 145 hr to cool down the superconductive part from room-temperature to 4.2 K by using a helium refrigerator of 200 W. The magnet could generate a central field up to 14.01 T in a 400 mm roomtemperature bore without quenching, when the operation current was 1384.5 A with helium evaporating rate of 18.8 l/hr. After detailed check on the magnet system the full operation at 15 T will be carried out at the end of 1994.