The HAWC and SAFIRE adiabatic demagnetization refrigerators
نویسندگان
چکیده
منابع مشابه
Construction techniques for adiabatic demagnetization refrigerators using ferric ammonium alum
We describe techniques used to fabricate the cold stage of an adiabatic demagnetization refrigerator that uses the paramagnetic salt ferric ammonium alum. We discuss the design of a leak-tight housing for the salt as well as a technique for growing ferric ammonium alum crystals that results in a housing filled with > 98% refrigerant. These techniques have proven to be reliable in creating robus...
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متن کاملEntanglement of systems of dipolar coupled nuclear spins at the adiabatic demagnetization.
We consider the adiabatic demagnetization in the rotating reference frame (ADRF) of a system of dipolar coupled nuclear spins s = 1/2 in an external magnetic field. The demagnetization starts with the offset of the external magnetic field (in frequency units) from the Larmor frequency being several times greater than the local dipolar field. For different subsystem sizes, we have found from num...
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ژورنال
عنوان ژورنال: Cryogenics
سال: 2001
ISSN: 0011-2275
DOI: 10.1016/s0011-2275(01)00169-2