A simple, reliable, and no-destructive method for the measurement of vacuum pressure
arXiv:1304.7064 · doi:10.1364/AO.52.006195
Abstract
We present a simple, reliable, and no-destructive method for the measurement of vacuum pressure in a magneto-optical trap. The vacuum pressure is verified to be proportional to collision rate constant between cold atoms and background gas with a coefficient k, which can be calculated by simple ideal gas law. The rate constant for loss due to collisions with all background gases can be derived from the total collision loss rate by a series of loading curve of cold atoms under different trapping laser intensities. The presented method is also applicable for other cold atom systems and meets the miniaturization requirement of commercial applications.
submitted to Appl. Phys. B. arXiv admin note: text overlap with arXiv:1203.0189 by other authors
References in corpus (2)
Cited by in corpus (6)
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- Cross-calibration of atomic pressure sensors and deviation from quantum diffractive collision universality for light particles
- On the effect of "glancing" collisions in the cold atom vacuum standard