Year: 2018
Type: conference-paper
Abstract: We report the design and performance characteristics of a compact cryogen-free platform. The system is based around a continuous 1 K pot which operates using a small (10 m 3 h −1 ) room temperature circulation pump. The pot cools an experimental plate to ≈ 1.2 K, and has a cooling capacity of 100 mW at a temperature ≈ 1.9 K. Cooling the pot from room temperature to < 2 K takes around 12 hours. The temperature range of the platform can be lowered to < 50 mK with the addition of a small dilution refrigerator, using the 1 K pot as a pre-cooling stage for the circulating 3 He. The dilution stage has a typical (continuous) cooling capacity of 30 µ W at 100 mK (300 µ W at 250 mK) and is designed to operate with just 3 litres of (NTP) 3 He.
Authors: A J Matthews, M Patton, T Marsh, H van der Vliet
Institution: Oxford Instruments (United Kingdom)
Language: English
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W2801699451