First cool-down performance of the LHD

Toshiyuki Mito; Ryuji Maekawa; Shuichi Yamada; Arata Nishimura; Kazuya Takahata; Akifumi Iwamoto; Shinsaku Imagawa; Kiyomasa Watanabe; Nagato Yanagi; Hitoshi Tamura; Tomosumi Baba; Sadatomo Moriuchi; Kouki Oba; Haruo Sekiguchi; Isao Ohtake; Takashi Satow; Sadao Satoh; Osamu Motojima

doi:10.1109/77.783377

First cool-down performance of the LHD

Toshiyuki Mito
, Ryuji Maekawa
, Shuichi Yamada
, Arata Nishimura
, Kazuya Takahata
, Akifumi Iwamoto
, Shinsaku Imagawa
, Kiyomasa Watanabe
, Nagato Yanagi
, Hitoshi Tamura
, Tomosumi Baba
, Sadatomo Moriuchi
, Kouki Oba
, Haruo Sekiguchi
, Isao Ohtake
, Takashi Satow
, Sadao Satoh
, Osamu Motojima

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The first cool-down test of the Large Helical Device (LHD) and the performance of the LHD cryogenic system during the first cycle operation are described. The first cool-down started on Feb. 23, 1998 and finished on Mar. 22. After the cool-down, the excitation tests of the SC coils up to 1.5 T and the first cycle operations for plasma physics experiments were conducted until May 18. The first cycle operation was successfully completed after the warm-up process to the room temperature from May 19 to Jun. 15. The cooling characteristics of the LHD, such as temperature distribution during cool-down, heat loads under steady state condition, reliability during long-term operation, are reported.

Original language	English
Pages (from-to)	640-643
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	9
Issue number	2 PART 1
DOIs	https://doi.org/10.1109/77.783377
State	Published - 1999
Externally published	Yes

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Mito, T., Maekawa, R., Yamada, S., Nishimura, A., Takahata, K., Iwamoto, A., Imagawa, S., Watanabe, K., Yanagi, N., Tamura, H., Baba, T., Moriuchi, S., Oba, K., Sekiguchi, H., Ohtake, I., Satow, T., Satoh, S., & Motojima, O. (1999). First cool-down performance of the LHD. IEEE Transactions on Applied Superconductivity, 9(2 PART 1), 640-643. https://doi.org/10.1109/77.783377

@article{d9631a64f5b54b828bbb6c7ed1c5ac97,

title = "First cool-down performance of the LHD",

abstract = "The first cool-down test of the Large Helical Device (LHD) and the performance of the LHD cryogenic system during the first cycle operation are described. The first cool-down started on Feb. 23, 1998 and finished on Mar. 22. After the cool-down, the excitation tests of the SC coils up to 1.5 T and the first cycle operations for plasma physics experiments were conducted until May 18. The first cycle operation was successfully completed after the warm-up process to the room temperature from May 19 to Jun. 15. The cooling characteristics of the LHD, such as temperature distribution during cool-down, heat loads under steady state condition, reliability during long-term operation, are reported.",

author = "Toshiyuki Mito and Ryuji Maekawa and Shuichi Yamada and Arata Nishimura and Kazuya Takahata and Akifumi Iwamoto and Shinsaku Imagawa and Kiyomasa Watanabe and Nagato Yanagi and Hitoshi Tamura and Tomosumi Baba and Sadatomo Moriuchi and Kouki Oba and Haruo Sekiguchi and Isao Ohtake and Takashi Satow and Sadao Satoh and Osamu Motojima",

year = "1999",

doi = "10.1109/77.783377",

language = "English",

volume = "9",

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journal = "IEEE Transactions on Applied Superconductivity",

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Mito, T, Maekawa, R, Yamada, S, Nishimura, A, Takahata, K, Iwamoto, A, Imagawa, S, Watanabe, K, Yanagi, N, Tamura, H, Baba, T, Moriuchi, S, Oba, K, Sekiguchi, H, Ohtake, I, Satow, T, Satoh, S & Motojima, O 1999, 'First cool-down performance of the LHD', IEEE Transactions on Applied Superconductivity, vol. 9, no. 2 PART 1, pp. 640-643. https://doi.org/10.1109/77.783377

TY - JOUR

T1 - First cool-down performance of the LHD

AU - Mito, Toshiyuki

AU - Maekawa, Ryuji

AU - Yamada, Shuichi

AU - Nishimura, Arata

AU - Takahata, Kazuya

AU - Iwamoto, Akifumi

AU - Imagawa, Shinsaku

AU - Watanabe, Kiyomasa

AU - Yanagi, Nagato

AU - Tamura, Hitoshi

AU - Baba, Tomosumi

AU - Moriuchi, Sadatomo

AU - Oba, Kouki

AU - Sekiguchi, Haruo

AU - Ohtake, Isao

AU - Satow, Takashi

AU - Satoh, Sadao

AU - Motojima, Osamu

PY - 1999

Y1 - 1999

N2 - The first cool-down test of the Large Helical Device (LHD) and the performance of the LHD cryogenic system during the first cycle operation are described. The first cool-down started on Feb. 23, 1998 and finished on Mar. 22. After the cool-down, the excitation tests of the SC coils up to 1.5 T and the first cycle operations for plasma physics experiments were conducted until May 18. The first cycle operation was successfully completed after the warm-up process to the room temperature from May 19 to Jun. 15. The cooling characteristics of the LHD, such as temperature distribution during cool-down, heat loads under steady state condition, reliability during long-term operation, are reported.

AB - The first cool-down test of the Large Helical Device (LHD) and the performance of the LHD cryogenic system during the first cycle operation are described. The first cool-down started on Feb. 23, 1998 and finished on Mar. 22. After the cool-down, the excitation tests of the SC coils up to 1.5 T and the first cycle operations for plasma physics experiments were conducted until May 18. The first cycle operation was successfully completed after the warm-up process to the room temperature from May 19 to Jun. 15. The cooling characteristics of the LHD, such as temperature distribution during cool-down, heat loads under steady state condition, reliability during long-term operation, are reported.

UR - https://www.scopus.com/pages/publications/0032638268

U2 - 10.1109/77.783377

DO - 10.1109/77.783377

M3 - Article

AN - SCOPUS:0032638268

SN - 1051-8223

VL - 9

SP - 640

EP - 643

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

IS - 2 PART 1

ER -

First cool-down performance of the LHD

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