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.
Original language | English |
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Article number | 026105 |
Number of pages | 3 |
Journal | Review of Scientific Instruments |
Volume | 80 |
Issue number | 2 |
DOIs | |
Publication status | Published - Feb 2009 |
Keywords
- magneto-optical effects
- radiation pressure
- rubidium