Picture of Open Access badges

Discover Open Access research at Strathprints

It's International Open Access Week, 24-30 October 2016. This year's theme is "Open in Action" and is all about taking meaningful steps towards opening up research and scholarship. The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. Explore recent world leading Open Access research content by University of Strathclyde researchers and see how Strathclyde researchers are committing to putting "Open in Action".


Image: h_pampel, CC-BY

A W-band Gyro-BWO based on helically corrugated waveguide

He, Wenlong and Phelps, A.D.R. and Donaldson, C. R. and Cross, A.W. and Ronald, Kevin (2007) A W-band Gyro-BWO based on helically corrugated waveguide. In: Joint 32nd International Conference on Infrared and Millimeter Waves/15th International Conference on Terahertz Electronics, 2007-09-03 - 2007-09-09.

Full text not available in this repository. (Request a copy from the Strathclyde author)


We present a viewport for use in ultrahigh vacuum (UHV) based upon the preflattened solder seal design presented in earlier work [Cox , 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 cm(3)/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.