Ion Transport on Phased Radiofrequency Carpets in Xenon Gas

TL;DR

This paper introduces a four-phased RF carpet system for efficient ion transport in high-pressure xenon gas, demonstrating high transport efficiency and potential for advanced neutrino detection applications.

Contribution

The study presents a novel N-phased RF carpet design capable of ion levitation and controlled movement at high gas pressures, advancing ion transport technology in dense environments.

Findings

Achieved ion transport efficiency in xenon up to 600 mbar.

Validated transport performance with microscopic simulations.

Demonstrated potential for use in neutrinoless double-beta decay experiments.

Abstract

We present the design and performance of a four-phased radiofrequency (RF) carpet system for ion transport in high-pressure xenon gas. The RF carpet, designed with a 160 $\mu$m pitch, is applied to the lateral collection of ions in xenon at pressures up to 600 mbar. We demonstrate transport efficiency of caesium ions across varying pressures, and compare with microscopic simulations made in the SIMION package. The novel use of an N-phased RF carpet at high pressure can achieve ion levitation and controlled lateral motion in a denser environment than is typical for RF ion transport in gases. This feature makes such carpets strong candidates for ion transport to single ion sensors envisaged for future neutrinoless double-beta decay experiments in xenon gas.