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Capture of Highly Charged Ions in a Pseudo-Hyperbolic Paul Trap



Joan M. Dreiling, Aung S. Naing, Joseph N. Tan, Joshua Hanson, Shannon Hoogerheide, Samuel M. Brewer


The confinement of ions in a radio-frequency (RF) trap (also known as a Paul trap) has proven to be advantageous in many applications. Typically, singly- or few-times-ionized atoms can be created in situ within the ion trap. Highly charged ions, on the other hand, are produced efficiently in dedicated external sources. In the work presented here, phase-space-optimized bunches of highly charged ions produced by an electron beam ion trap/source are extracted via a 7 m long beamline and captured in a cylindrically symmetric RF trap with a pseudo-hyperbolic electrode geometry. The capture efficiency and storage lifetime are compared to those of a contiguous, unitary Penning trap. The RF drive parameter space is surveyed both experimentally and computationally to map out those regions favorable for ion capture.
Journal of Applied Physics


Ion trapping and cooling, Highly Charged Ions, Radio-frequency trap


Dreiling, J. , Naing, A. , Tan, J. , Hanson, J. , Hoogerheide, S. and Brewer, S. (2019), Capture of Highly Charged Ions in a Pseudo-Hyperbolic Paul Trap, Journal of Applied Physics, [online], (Accessed May 30, 2024)


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Created July 12, 2019, Updated June 30, 2023