Projects per year
Abstract
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.
Original language | English |
---|---|
Publication status | Published - 2 Sept 2007 |
Event | Joint 32nd International Conference on Infrared and Millimeter Waves/15th International Conference on Terahertz Electronics - Cardiff Duration: 3 Sept 2007 → 9 Sept 2007 |
Conference
Conference | Joint 32nd International Conference on Infrared and Millimeter Waves/15th International Conference on Terahertz Electronics |
---|---|
City | Cardiff |
Period | 3/09/07 → 9/09/07 |
Keywords
- physics
- waveguide
- helically corrugated waveguide
Fingerprint
Dive into the research topics of 'A W-band Gyro-BWO based on helically corrugated waveguide'. Together they form a unique fingerprint.Projects
- 2 Finished
-
Compression of frequency modulated pulses using a high order helically corrugated waveguide
Cross, A. (Principal Investigator), Phelps, A. (Co-investigator), Ronald, K. (Co-investigator) & Zhang, L. (Researcher)
EPSRC (Engineering and Physical Sciences Research Council)
1/10/06 → 30/09/10
Project: Research
-
Wave dispersion measurement of helically corrugated waveguides using Vector Network Analyser
Phelps, A. (Principal Investigator), Cross, A. (Co-investigator), Ronald, K. (Co-investigator) & Whyte, C. (Co-investigator)
EPSRC (Engineering and Physical Sciences Research Council)
1/10/05 → 28/02/09
Project: Research
Research output
- 1 Citations
- 1 Conference contribution book
-
Microwave pulse compression using helically corrugated waveguides
Young, A., Ronald, K., Macinnes, P., Whyte, C., Burt, G., He, W., Konoplev, I., Phelps, A., Cross, A., Samsonov, S. V., Bratman, V. L. & Denisov, G. G., 2006, 2006 IEEE International vacuum electronics conference held jointly with 2006 IEEE international vacuum electron sources . New York: IEEE, p. 555-556 (IEEE International Vacuum Electronics Conference IVEC ).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book