Abstract

Helium liquid-gap and gas-gap heat switches are operated at 2 K. They are tested for their on- and off-conductance and turn-on and turn-off times. The measured on- and off-conductance of the heat switches are close to the theoretical values. The on- to off- conductance ratio of the liquid-gap heat switch is 6900 and that of the gas-gap heat switch is 1300. The turn-on times of both heat switches are approximately one minute. For the liquid- gap heat switch the turn-off time is under three minutes. The turn-off time of the gas-gap heat switch is on the order of ten minutes due to the adsorbed helium on the interior surfaces of the heat switch.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.