2018年1月1日
Construction and commissioning of the compact energy-recovery linac at KEK
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
- 巻
- 877
- 号
- 開始ページ
- 197
- 終了ページ
- 219
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.nima.2017.08.051
© 2017 Elsevier B.V. Energy-recovery linacs (ERLs) are promising for advanced synchrotron light sources, high-power free electron lasers (FELs), high-brightness gamma-ray sources, and electron–ion colliders. To demonstrate the critical technology of ERL-based light sources, we have designed and constructed a test accelerator, the compact ERL (cERL). Using advanced technology that includes a photocathode direct current (DC) electron gun and two types of 1.3-GHz-frequency superconducting cavities, the cERL was designed to be capable of recirculating low emittance (≤1 mm⋅ mrad) and high average-current (≥10 mA) electron beams while recovering the beam energy. During initial commissioning, the cERL demonstrated successful recirculation of high-quality beams with normalized transverse emittance of ∼0.14 mm⋅ mrad and momentum spread of ∼1.2 × 10−4 (rms) at a beam energy of 20 MeV and bunch charge below 100 fC. Energy recovery in the superconducting main linac was also demonstrated for high-average-current continuous-wave beams. These results constitute an important milestone toward realizing ERL-based light sources.
- リンク情報
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- DOI
- https://doi.org/10.1016/j.nima.2017.08.051
- Scopus
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85031718411&origin=inward
- Scopus Citedby
- https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85031718411&origin=inward
- URL
- https://www.sciencedirect.com/science/article/pii/S0168900217309518
- ID情報
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- DOI : 10.1016/j.nima.2017.08.051
- ISSN : 0168-9002
- SCOPUS ID : 85031718411