Ion trap with integrated time-of-flight mass spectrometer

Abstract

Recently, we reported an ion trap experiment with an integrated time-of-flight mass spectrometer (TOFMS) [Phys. Rev. Appl. 2, 034013 (2014)] focussing on the improvement of mass resolution and detection limit due to sample preparation at millikelvin temperatures. The system utilizes a radio-frequency (RF) ion trap with asymmetric drive for storing and manipulating laser-cooled ions and features radial extraction into a compact $275$ mm long TOF drift tube. The mass resolution exceeds $m/\Delta m=500$, which provides isotopic resolution over the whole mass range of interest in current experiments and constitutes an improvement of almost an order of magnitude over other implementations. In this manuscript, we discuss the experimental implementation in detail, which is comprised of newly developed drive electronics for generating the required voltages to operate RF trap and TOFMS, as well as control electronics for regulating RF outputs and synchronizing the TOFMS extraction.

9 pages, 10 figures

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• A trapped single ion inside a Bose-Einstein condensate
• Controlling chemical reactions of a single particle
• Cold heteronuclear atom-ion collisions
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• A far-off-resonance optical trap for a Ba${}^{+}$ ion
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Cited by in corpus (7)

• Synthesis of mixed hypermetallic oxide BaOCa${}^{+}$ from laser-cooled reagents in an atom-ion hybrid trap
• Reaction blockading in charged-neutral excited-state chemistry at low collision energy
• High resolution ion trap time-of-flight mass spectrometer for cold trapped ion experiments
• Laser Cooling of Radium Ions
• Improved magneto-optical trapping of Ca
• Two-photon vibrational transitions in ${\mathrm{O}}_2^{+}$ as probes of variation of the proton-to-electron mass ratio
• High-resolution collision energy control through ion position modulation in atom-ion hybrid systems