Conveners
Wed-Or10: Cryocoolers Applications
- Holger Neumann (Karlsruhe Insitute of Technology - Insitute for Technical Physics - Cryogenics)
The Einstein Telescope is a proposed ground-based third-generation gravitational wave observatory. The extreme sensitivity with which current second-generation gravitational observatories have measured gravitational waves is to be improved even further. One of the ways in which this is achieved is by cooling down the mirrors of the interferometers. Brownian noise, mainly originating from the...
GM-JT (Gifford-McMahon-Joule-Thomson) cryocooler systems consist of GM cryocooler for pre-cooling and JT cryocooler system. GM-JT cryocooler systems have the cooling capacity of several GM or PT cryocooler systems by combination of GM and JT cryocoolers. This leads to better power consumption (efficiency), footprint, and maintenance costs for the customer's system.
Last November, SHI released...
This paper presents a novel cryogenic cooling method for Superconducting Radio Frequency (SRF) cavities, utilizing a cold helium flow passed through a brazed capillary for their cooling. Such novel and drastically reduced helium content cooling scheme can be applied to a wide variety of superconducting cavities, and it has many advantages compared to the traditional cooling method of SRF...
Magnetic compensation of gravity allows for ground-based experiments to be carried out under weightless conditions at reasonable cost and without the time limitation of systems such as zero-g airplanes or drop towers. In this paper a superconducting magnet for gravity compensation is described. The magnet warm bore diameter is 380mm and the center field is 2T. The magnet is comprised by nine...
Abstract: Joule-Thomson (J-T) effect is pivotal in refrigeration applications spanning a broad spectrum of temperature ranges. Miniature open-cycle J-T cryocoolers stand out for their remarkable cooling speed, capable of fast cooling from room temperature to 100 K within mere seconds. This rapid cooling capability renders them ideal for addressing immediate and transient cooling requirements,...
For the cooling of new superconducting components, cryocoolers are increasingly favored over traditional immersion bath cooling. The efficient thermal connection between superconducting elements, like coils, and cryocoolers is vital for the system performance. Pulsating Heat Pipes (PHPs) utilize two-phase flow to transfer heat from a warmer evaporator section to a colder condenser part using...
In the design of a cryostat, the characterization of their cryocoolers is critical for vibration-sensitive applications. These components are used for achieving and maintaining low temperatures. In this work, the characterization of the PT410 pulse tube cryoocoler through modal and microvibration testing has been conducted.
Modal testing was conducted to examine the natural frequencies and...
To improve the precision and the efficiency of cancer treatment, a new kind of radiotherapy using ions carbon is under development in France. This project called C400, involved a 400 Mev/u cyclotron composed of a 15 tons supraconducting magnet cooling by a 470 L liquid helium bath.
In order to cool down of the magnet from 300 K, Absolut System designed, manufactured and tested a high...
