A versatile and reliably reusable ultrahigh vacuum viewport

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

doi:10.1063/1.3075547

A versatile and reliably reusable ultrahigh vacuum viewport

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

Research output: Contribution to journal › Article

8 Citations (Scopus)

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
Article number	026105
Number of pages	3
Journal	Review of Scientific Instruments
Volume	80
Issue number	2
DOIs	https://doi.org/10.1063/1.3075547
Publication status	Published - Feb 2009

Keywords

magneto-optical effects
radiation pressure
rubidium

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10.1063/1.3075547

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title = "A versatile and reliably reusable ultrahigh vacuum viewport",

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.",

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AU - Weatherill, K. J.

AU - Pritchard, J. D.

AU - Griffin, P. F.

AU - Dammalapati, U.

AU - Adams, C. S.

AU - Riis, E.

PY - 2009/2

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AB - 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.

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KW - radiation pressure

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