Developpment of a portable Cold Atom Vacuum Standard
It is a challenge to measure pressure in ultra-high vacuum (UHV) and extreme-high vacuum (XHV) regimes. At NIST, we developed a portable cold atom vacuum standard (pCAVS) for absolute pressure measurement; the pCAVS uses laser-cooled atoms as a sensing element, where the loss rate of atoms from a magnetic trap is used to determine the background gas pressure.
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L. Ehinger, Bishnu P. Acharya, Daniel S. Barker, et al.
AVS Quantum Science (2024) | arXiv
Featured on cover of AVS Quantum Science Volume 4, Issue 3