Improvement of xenon purification system using a combination of a pulse tube refrigerator and a coaxial heat exchanger

TL;DR

This paper presents a compact cryogenic xenon purification system combining a pulse tube refrigerator and a coaxial heat exchanger, achieving high efficiency and rapid impurity reduction for large-scale applications.

Contribution

It introduces a novel integrated system that enhances xenon purification speed and efficiency, reducing thermal losses and enabling fast gas recirculation.

Findings

Heat exchanger efficiency of 99%

Reduced thermal losses in xenon recirculation

Faster impurity removal in large-scale systems

Abstract

We have developed a compact cryogenic system with a pulse tube refrigerator and a coaxial heat exchanger. This liquefaction-purification system not only saves the cooling power used to reach high gaseous recirculation rate, but also reduces the impurity level with high speed. The heat exchanger operates with an efficiency of 99%, which indicates the possibility for fast xenon gas recirculation in a highpressurized large-scale xenon storage with much less thermal losses.