ISAS Space Science Colloquium & Space Science Seminar
A cLosed cycled dilution refrigerator for LiteBIRD / SPICA, LiteBIRD and ATHENA-XIFU Technology of space cryocoolers below 1 K
"A cLosed cycled dilution refrigerator for LiteBIRD"
I will briefly review the principles of operation of the CCDR and discuss the results of the test of a "negative gravity" CCDR with a JAXA helium-3 circulation pump.
Then, I will describe discuss the current design of a demonstration model for X-IFU in the context of LiteBIRD with emphasis on thermal interfaces with the instrument and with warmer stages in the cooling chain.
"SPICA, LiteBIRD and ATHENA-XIFU Technology of space cryocoolers below 1 K"
The science of the universe implies the use of very sensitive detectors operated in space, below 1 K, on large observation satellites.
Herschel, Plank, ASTRO missions, SPICA, LiteBIRD and ATHENA X-IFU have been and will equipped with cryogenic coolers operating between 100 mK and 50 mK.
Sorption, adiabatic demagnetization and dilution refrigerators are the three space compatible solutions to reach such low temperatures with limited resources.
These coolers will be presented as well as the future technical challenges of the future missions.
Place: 2F Conf. room（1204） / 研究管理棟２階小会議室（1204号室）