4
views
0
recommends
+1 Recommend
0 collections
0
shares
• Record: found
• Abstract: found
• Article: found
Is Open Access

# Development of a sub-mK Continuous Nuclear Demagnetization Refrigerator

Preprint

Bookmark
There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

### Abstract

We present the development of a two-stage PrNi$$_5$$ continuous demagnetization refrigerator at the Institut N\'{e}el/CNRS and numerical simulations of its performance. The thermal model used in the simulations is discussed in detail including the likely sources of heating. We demonstrate the effects of the critical thermal links including superconducting heat switches as well as the heat conductivity of the PrNi$$_5$$, accounting for the dependence of cooling power on the PrNi$$_5$$ rod diameter. Our simulations show that if extreme care is taken to minimize the thermal resistance between the nuclear stages, a sample temperature of 1~mK can be maintained under a 20~nW heat load.

### Most cited references2

• Record: found

### Development of a cryogen-free continuous ADR for the constellation-X mission

(2004)
Bookmark
• Record: found

### Electrical Conductance of Bolted Copper Joints for Cryogenic Applications

(2014)
Bookmark

### Author and article information

###### Journal
20 September 2018
###### Article
1809.07670