The Vienna Nuclear Demagnetization Refrigerator

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A microprocessor controller for a nuclear demagnetization refrigerator

For the past six years microprocessor systems have been coming into use in research laboratories, but they have not yet gained the general acceptance that one might have expected. We would like to describe the use of a microcomputer system which has already been a great help to us. This paper has been prepared to answer numerous queries about our system and to encourage other laboratories to us...

متن کامل

The Continuous Adiabatic Demagnetization Refrigerator (CADR) Innovation Pathway

This pathway describes the development of a Continuous Adiabatic Demagnetization Refrigerator (CADR) within NASA’s Goddard Space Flight Center’s (GSFC, or Goddard) cryogenics and fluids branch. After more than a decade of concerted development efforts, the team is still awaiting a mission opportunity on which to fly the full system. Like the traditional ADR, the CADR will maintain spacecraft in...

متن کامل

A Miniature Adiabatic Demagnetization Refrigerator with a Magnetoresistive Heat Switch

We present the design of a novel, miniature ADR with no moving parts, which could be used to cool detectors for astrophysics research, semiconductor analysis, and mass spectrometry. The miniature ADR relies on the development of a magnetoresistive heat switch. We present measurements of the thermal conductivity of a single-crystal tungsten heat switch at temperatures below 4 K and magnetic fiel...

متن کامل

Demagnetization Fields

Generaly in the study of magnetism, and specifically for micromagnetics simulations, one needs to know the magnetic field ~ HM inside a macroscopic magnet, that is caused by the magnetization ~ M (the dipole moment per unit volume) of that magnet itself. Some aspects of how that demagnetization field can be found are discussed. There are two basic cases: (1) The demagnetization field ~ HM insid...

متن کامل

The Quantum Absorption Refrigerator

A quantum absorption refrigerator driven by noise is studied with the purpose of determining the limitations of cooling to absolute zero. The model consists of a working medium coupled simultaneously to hot, cold and noise baths. Explicit expressions for the cooling power are obtained for Gaussian and Poisson white noise. The quantum model is consistent with the first and second laws of thermod...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Physics: Conference Series

سال: 2012

ISSN: 1742-6588,1742-6596

DOI: 10.1088/1742-6596/400/5/052024