Journal
ADVANCES IN CRYOGENIC ENGINEERING
Volume 278, Issue -, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1757-899X/278/1/012010
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We present the current state of development in passive gas-gap heat switches. This type of switch does not require a separate heater to activate heat transfer but, instead, relies upon the warming of one end due to an intrinsic step in a thermodynamic cycle to raise a getter above a threshold temperature. Above this temperature sequestered gas is released to couple both sides of the switch. This enhances the thermodynamic efficiency of the system and reduces the complexity of the control system. Various gas mixtures and getter configurations will be presented.
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