A versatile and reliably re-usable ultra-high vacuum viewport

Weatherill, K.; Pritchard, J.D.; Griffin, P.F.; Dammalapati, U.; Adams, C.S.; Riis, E.

Abstract

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.

Citation

Weatherill, K., Pritchard, J., Griffin, P., Dammalapati, U., Adams, C., & Riis, E. (2009). A versatile and reliably re-usable ultra-high vacuum viewport. Review of Scientific Instruments, 80(2), https://doi.org/10.1063/1.3075547

• Journal Article Type: Article
• Publication Date: Feb 1, 2009
• Deposit Date: Sep 24, 2010
• Publicly Available Date: Oct 6, 2010
• Journal: Review of Scientific Instruments
• Print ISSN: 0034-6748
• Electronic ISSN: 1089-7623
• Publisher: American Institute of Physics
• Peer Reviewed: Not Peer Reviewed
• Volume: 80
• Issue: 2
• DOI: https://doi.org/10.1063/1.3075547
• Publisher URL: http://rsi.aip.org/resource/1/rsinak/v80/i2/p026105_s1