Line emission mapper cryogenic system design
JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS(2023)
Abstract
The line emission mapper x-ray microcalorimeter instrument requires a 4 K cryogenic system to precool a continuous adiabatic demagnetization refrigerator enabling high-resolution x-ray spectroscopy. The cryogenic system described in this work provides the required structural and thermal environments using mature cooling and structural technologies. The system is comprised of a dewar design based on heritage manufacturing processes and an efficient four-stage pulse tube cryocooler with supporting control electronics.
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Key words
cryogenics,cryocooler,dewar,x-ray,space
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