| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2025-12-11 |
| タイトル |
|
|
タイトル |
Linear IFMIF Prototype Accelerator (LIPAc) Radio Frequency Quadrupole's (RFQ) RF couplers enhancement towards CW operation at nominal voltage |
|
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 |
Francesco Scantamburlo
Fabio Cismondi
Cesar Caballero
Philippe Cara
Yann Carin
Michele Comunian
Andrea De Franco
Hervé Dzitko
Enrico Fagotti
Luis González Gallego
Juan Manuel Garcia Gonzalez
Dominique Gex
Francesco Grespan
Hirosawa Koki
Kondo Keitaro
Naoya Kubo
Masuda Kai
Ivan Moya
Antonio Palmieri
Andrea Pisent
Sugimoto Masayoshi
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
Under the Broader Approach (BA) agreement, the Accelerator Facility validation activities aim at demonstratingthe acceleration of 125 mA D+ beam up to 9 MeV. This is the main goal of the Linear IFMIF Prototype Accel-erator (LIPAc) under installation and commissioning in Rokkasho, Japan.The LIPAc commissioning by accelerating the beam through the entire line is currently on-going at RokkashoFusion Institute. Other than the beam commissioning, in 2021 and 2022 extensive conditioning experi-mental campaigns have been carried out on the Radio Frequency Power System (RFPS)-RFQ system to reach CW[5]. The RFPS-RFQ is composed of 8 RF-RFQ tetrode based chains injecting RF power into the RFQ by 8 couplers.The target of the RFQ conditioning campaigns is to reach CW operation at nominal vane-voltage of 132 kV. RFQcould achieve CW field of 105 kV at the end of 2021.During the RFQ conditioning campaigns in 2022, the conditioning was stopped because of abnormal increaseof vacuum pressure due to a leak from one O-Ring of the couplers. The 8 couplers are equipped with a ceramicwindow (vacuum barrier) using O-ring for sealing purposes. Extensive simulation and design studies havebeen carried out and an upgraded design of the parts near the RF window of RFQ coupler has been proposed andvalidated for implementation.This paper will focus on the RFQ couplers technical issue, analysis of the design upgrade, implementation ofthe upgraded solution and perspective for future improvements of the RFQ couplers designs in view of FNS andDONES application. |
| 書誌情報 |
Fusion Engineering and Design
巻 204,
p. 114508,
発行日 2024-07
|
| 出版者 |
|
|
出版者 |
Elsevier B.V. |
| ISSN |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0920-3796 |
| DOI |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1016/j.fusengdes.2024.114508 |
