| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2025-03-12 |
| タイトル |
|
|
タイトル |
Strain analysis by neutron diffraction on Nb3 Sn strands in ITER central solenoid conductors of short and long twist pitch |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 著者 |
諏訪 友音
礒野 高明
Stefanus Harjo
川崎 卓郎
相澤 一也
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
The ITER central solenoid (CS) conductors are composed of Nb3Sn superconducting cables and stainless steel jackets. Approximately 60 000 electromagnetic loading cycles will be applied to the Nb3Sn strands in the CS conductor over the course of ITER tokamak operation, and the CS conductor is required to maintain the current sharing temperature (Tcs) for these electromagnetic loading cycles. However, in CS conductor prototypes, degradation of Tcs was observed after electromagnetic loading cycles. Visual inspections of the tested CS conductors revealed large bending and buckling of the Nb3Sn strands. These strand deformations were considered to be the cause of Tcs degradation because even a small amount of strain markedly affects the critical current of Nb3Sn strands. To prevent the strands from bending and buckling, the twist pitch of the cable was shortened to improve stiffness. The stiffer cables did prevent Tcs from degrading after electromagnetic loading cycles owing to the shortened twist pitch of the cond |
| 書誌情報 |
Superconductor Science and Technology
巻 38,
号 1,
p. 015008,
発行日 2024-12
|
| DOI |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1088/1361-6668/ad9417 |
