Stable beam operation of approximately 1 mA beam under highly efficient   energy recovery conditions at compact energy-recovery linac

Hiroshi Sakai (1); Dai Arakawa (1); Takaaki Furuya (1); Kaiichi Haga; (1); Masayuki Hagiwara (1); Kentaro Harada (1); Yosuke Honda (1); Teruya; Honma (1); Eiji Kako (1); Ryukou Kato (1); Yuuji Kojima (1); Taro Konomi (1),; Hiroshi Matsumura (1); Taichi Miura (1); Takako Miura (1); Shinya Nagahashi; (1); Hirotaka Nakai (1); Norio Nakamura (1); Kota Nakanishi (1); Kazuyuki; Nigorikawa (1); Takashi Nogami (1); Takashi Obina (1); Feng Qiu (1); Hidenori; Sagehashi (1); Shogo Sakanaka (1); Miho Shimada (1); Mikito Tadano (1),; Takeshi Takahashi (1); Ryota Takai (1); Olga Tanaka (1); Yasunori Tanimoto; (1); Akihiro Toyoda (1); Takashi Uchiyama (1); Kensei Umemori (1); Masahiro; Yamamoto (1); Go Yoshida (1); Nobuyuki Nishimori (2); Ryoichi Hajima (3),; Ryoji Nagai (3); Masaru Sawamura (3) ((1) High Energy Accelerator Research; Organization (KEK); Tsukuba; Ibaraki; Japan; (2) National Institutes for; Quantum; Radiological Science; Technology (QST); Sayo-cho; Hyogo; Japan; (3) National Institutes for Quantum; Radiological Science; Technology; (QST); Tokai; Ibaraki; Japan)

arXiv:2408.13478·physics.acc-ph·August 27, 2024

Stable beam operation of approximately 1 mA beam under highly efficient energy recovery conditions at compact energy-recovery linac

Hiroshi Sakai (1), Dai Arakawa (1), Takaaki Furuya (1), Kaiichi Haga, (1), Masayuki Hagiwara (1), Kentaro Harada (1), Yosuke Honda (1), Teruya, Honma (1), Eiji Kako (1), Ryukou Kato (1), Yuuji Kojima (1), Taro Konomi (1),, Hiroshi Matsumura (1), Taichi Miura (1)

PDF

Open Access

TL;DR

This paper reports on the successful stable operation of a compact energy-recovery linac at KEK, achieving approximately 1 mA CW beam with high efficiency, low emittance, and minimal beam loss, demonstrating key technological advancements.

Contribution

The paper introduces new technologies and methods enabling stable 1 mA CW operation with nearly 100% energy recovery and minimal beam loss in a compact energy-recovery linac.

Findings

01

Achieved stable 1 mA CW beam operation with low emittance.

02

Demonstrated nearly 100% energy recovery during operation.

03

Reduced beam loss to extremely small levels.

Abstract

A compact energy-recovery linac (cERL) has been un-der construction at KEK since 2009 to develop key technologies for the energy-recovery linac. The cERL began operating in 2013 to create a high-current beam with a low-emittance beam with stable continuous wave (CW) superconducting cavities. Owing to the development of critical components, such as the DC gun, superconducting cavities, and the design of ideal beam transport optics, we have successfully established approximately 1 mA stable CW operation with a small beam emittance and extremely small beam loss. This study presents the details of our key technologies and experimental results for achieving 100% energy recovery operation with extremely small beam loss during a stable, approximately 1 mA CW beam operation.

Peer Reviews

No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.

Videos

No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.

Taxonomy

TopicsParticle accelerators and beam dynamics · Plasma Diagnostics and Applications · Particle Accelerators and Free-Electron Lasers