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A versatile and reliably reusable ultrahigh vacuum viewport

Weatherill, K. J. and Pritchard, J. D. and Griffin, P. F. and Dammalapati, U. and Adams, C. S. and Riis, E. (2009) A versatile and reliably reusable ultrahigh vacuum viewport. Review of Scientific Instruments, 80 (2). ISSN 0034-6748

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We present a viewport for use in ultrahigh vacuum (UHV) based upon the preflattened solder seal design presented in earlier work [Cox et al., Rev. Sci. Instrum. 74, 3185 (2003)]. The design features significant modifications to improve long term performance. The windows have been leak tested to less than 10-10 atm cm3/s. From atom number measurements in an optical dipole trap loaded from a vapor cell magneto-optical trap inside a vacuum chamber accommodating these viewports, we measure a trap lifetime of 9.5 s suggesting a pressure of around 10-10 Torr limited by background rubidium vapor pressure. We also present a simplified design where the UHV seal is made directly to a vacuum pipe.

Item type: Article
ID code: 26578
Keywords: magneto-optical effects, radiation pressure, rubidium, Physics, Instrumentation
Subjects: Science > Physics
Department: Faculty of Science > Physics
University of Strathclyde > University of Strathclyde
Depositing user: Miss Leonie Airley
Date Deposited: 04 Aug 2010 10:50
Last modified: 14 Sep 2015 13:15
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