タイトル | Secondary electron yield of N[lc]b RF cavity surfaces |
その他のタイトル | ニオブRF空洞表面の2次電子収量 |
著者(日) | Noer, R.; 光延 信二; 来島 裕子; 樋口 玉緒; 斉藤 健治 |
著者(英) | Noer, R.; Mitsunobu, Shinji; Kijima, Yuko; Higuchi, Tamao; Saito, Kenji |
著者所属(日) | Carleton College; 高エネルギー加速器研究機構; 高エネルギー加速器研究機構; 高エネルギー加速器研究機構; 高エネルギー加速器研究機構 |
著者所属(英) | Carleton College; High Energy Accelerator Research Organization; High Energy Accelerator Research Organization; High Energy Accelerator Research Organization; High Energy Accelerator Research Organization |
発行日 | 2003-06 |
刊行物名 | Proceedings of the 10th Workshop on RF Superconductivity, SRF2001 Proceedings of the 10th Workshop on RF Superconductivity, SRF2001 |
開始ページ | 400 |
終了ページ | 402 |
刊行年月日 | 2003-06 |
言語 | eng |
抄録 | Multipacting continues to be a significant issue in the performance of superconducting RF cavities. In order to better understand multipacting behavior observed in these cavities, measurements of secondary electron yield (SEY) have carried out on Nb samples that have been given different elements of standard KEK cavity treatments. These include electropolishing to 100 micrometer depth, 700 C annealing, further electropolishing of 15 micrometer, rinsing with ordinary or ozonized water, and 150 C baking with final exposure to air, nitrogen, or argon. Measurements were made with a specially adapted SEM that allows detailed measurements of SEY as a function of position. Varying degrees of SEY uniformity on sample surfaces, and clear differences in SEY for differing surface treatments are found. |
キーワード | multipacting; electropolishing; superconducting cavity resonator; SEY; surface treatment; annealing; Nb; RRR; uniformity; research and development; water rinsing; secondary emission; マルチパクティング; 電解研磨; 超伝導空洞共振器; SEY; 表面処理; アニーリング; Nb; RRR; 一様性; 研究開発; 水リンス; 2次放出 |
資料種別 | Conference Paper |
SHI-NO | AA0046174072 |
レポートNO | KEK-Proceedings-2003-2 |
URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/37487 |