NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Capture of Highly Charged Ions in a Pseudo-Hyperbolic Paul Trap
Published
Author(s)
Joan M. Dreiling, Aung Naing, Joseph Tan, Joshua Hanson, Shannon Hoogerheide, Samuel Brewer
Abstract
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.
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], https://doi.org/10.1063/1.5090338, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=926925
(Accessed October 1, 2025)