The analysis of the cooling power using the present result allows more detailed evaluation of the refrigerator performance than has been possible with the analysis of the base temperature. An approximate expression for the cooling power is discussed which simplifies the prediction of the cooling rate ...
A dilution refrigerator is described which is precooled by a two-stage pulse-tube refrigerator and thus no cryoliquids are needed to operate this millikelv... K Uhlig - 《Cryogenics》 被引量: 54发表: 2002年 DRY DILUTION REFRIGERATOR WITH HIGH COOLING POWER We present the construction concept...
The cooling power of the refrigerator can be controlled and matched to a heat load for steady state operation by: (1) adjusting the temperature of adsorption pumps by using and adjusting electrical heaters 29 and 30, and (2) adjusting the temperature of the liquid in the condenser-collector ...
Our JDry cryogen-free dilution refrigerator series includes multiple standard models like JDry-500 which provides a cooling power of more than 450 µW at 100 mK.
Here we examine the residual heat load onto the mixing chamber of a cryogen-free dilution refrigerator when wiring cartridges are installed. This heat load can be extracted using knowledge of the cooling power of the dilution refrigerator at the temperatures of interest. With knowledge of the ...
coolinghelium 3ultralow temperatureThe mixing chamber of the Leiden alternative dilution refrigerator has been used as a compression cell for Pomeranchuk cooling. A description is given of the construction of this cooling device and its performance. The lowest magnetic temperature reached so far is ...
The helium-free dilution refrigerator performs the cooling power of 20 渭W at 100 mK. The TES and SQUID chips suffered from mechanical vibrations induced by a reciprocating motion of the displacer of the GM cooler. Detection signals of LX-ray photons emitted from 241Am source were observed by...
1. In a3He --4He dilution refrigerator for temperatures below the λ point of helium, including first means for condensing and cooling gaseous helium into concentrated liquid3He, a mixing chamber containing concentrated3He and superfluid dilute3He, a distillation chamber for separating dilute3He int...
Cooling down nanomechanical force probes is a generic strategy to enhance their sensitivities through the concomitant reduction of their thermal noise and mechanical damping rates. However, heat conduction becomes less efficient at low temperatures, whic
The 3He-4He Dilution Refrigerator Until about the 1950s the only method of achieving temperatures below 1K was magnetic refrigeration using demagnetization of a paramagnetic salt (Chap. 9)... F Pobell 被引量: 5发表: 1996年 DRY DILUTION REFRIGERATOR WITH HIGH COOLING POWER liquefier with a rela...