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arXiv · 1904.13242

A room-temperature ion trapping apparatus with hydrogen partial pressure below $10^{-11}$ mBar

P. Obšil·A. Lešundák·T. Pham·K. Lakhmanskiy·L. Podhora·M. Oral·O. Číp·L. Slodička
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Abstract

The lifetime of trapped ion ensembles corresponds to a crucial parameter determining the potential scalability of their prospective applications and is often limited by the achievable vacuum level in the apparatus. We report on the realization of a room-temperature $^{40}{\rm Ca}^{+}$ ion trapping vacuum apparatus with unprecedentedly low reaction rates of ions with a dominant vacuum contaminant: hydrogen. We present our trap assembly procedures and hydrogen pressure characterization by analysis of the CaH$^+$ molecule formation rate.

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P. Obšil, A. Lešundák, T. Pham, K. Lakhmanskiy, L. Podhora, M. Oral, O. Číp, L. Slodička. 2019-04-30. A room-temperature ion trapping apparatus with hydrogen partial pressure below $10^{-11}$ mBar. https://doi.org/10.1063/1.5104346

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