論文

査読有り
2017年

Design and commissioning of the RIKEN cryogenic electrostatic ring (RICE)

Review of Scientific Instruments
  • Nakano, Y.
  • ,
  • Enomoto, Y.
  • ,
  • Masunaga, T.
  • ,
  • Menk, S.
  • ,
  • Bertier, P.
  • ,
  • Azuma, T.

88
3
開始ページ
033110
終了ページ
033110
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1063/1.4978454
出版者・発行元
AIP Publishing LLC

A new electrostatic ion storage ring, the RIKEN cryogenic electrostatic ring, has been commissioned with a 15-keV ion beam under cryogenic conditions. The ring was designed with a closed ion beam orbit of about 2.9 m, where the ion beam is guided entirely by electrostatic components. The vacuum chamber of the ring is cooled using a liquid-He-free cooling system to 4.2 K with a temperature difference of 0.4 K at most within all the positions measured by calibrated silicon diode sensors. The first cryogenic operation with a 15-keV Ne+ beam was successfully performed in August 2014. During the measurement, the Ne+ beam was stored under a ring temperature of 4.2 K with a residual-gas lifetime of more than 10 min. This permits an estimation of the residual gas density at a few 104 cm−3, which corresponds to a room-temperature-equivalent pressure of around 1×10−10 Pa. An effect of longitudinal pulse compression at the bunching cavity in the ring was clearly identified by monitoring the pick-up beam detector. Th...

リンク情報
DOI
https://doi.org/10.1063/1.4978454
Scopus Url
http://www.scopus.com/inward/record.url?eid=2-s2.0-85016422265&partnerID=MN8TOARS

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