<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Heat-Switches on Joe Wiedemann</title><link>https://joewiedemann.info/tags/heat-switches/</link><description>Recent content in Heat-Switches on Joe Wiedemann</description><generator>Hugo</generator><language>en-us</language><lastBuildDate>Wed, 10 Apr 2024 00:00:00 +0000</lastBuildDate><atom:link href="https://joewiedemann.info/tags/heat-switches/index.xml" rel="self" type="application/rss+xml"/><item><title>PXS Cryogenics</title><link>https://joewiedemann.info/research/pxs-cryogenics/</link><pubDate>Wed, 10 Apr 2024 00:00:00 +0000</pubDate><guid>https://joewiedemann.info/research/pxs-cryogenics/</guid><description>&lt;h2 id="pxs-cryogenic-requirements"&gt;PXS Cryogenic Requirements&lt;/h2&gt;
&lt;p&gt;The Princeton Axion Search is a cavity Haloscope-style experiment, which requires cryogenic solutions to cool a superconducting magnet storing 6 mega-joules of energy, while simultaneously bringing the cavity detector and readout electronics to 40 milli-Kelvin (40 thousandths of a degree above absolute zero). Similar systems that cool large magnets, like MRI machiens, cool the magnet down by containing the system in a liquid Helium bath. These liquid helium baths are expensive and require sophisticated pressure vessels to handle the forces in case a magnet disruption rapidly boils the liquid Helium. As an academic research group, these requirements for liquid Helium designs would make the experiment prohibitively expensive. We are designing the experiment to be cooled entirely through conduction paths to pulse tube cryocoolers.&lt;/p&gt;</description></item></channel></rss>