Operation of a high-T-C SQUID gradiometer with a two-stage MEMS-based Joule-Thomson micro-cooler
Artikel i vetenskaplig tidskrift, 2016
Practical applications of high-T-C superconducting quantum interference devices (SQUIDs) require cheap, simple in operation, and cryogen-free cooling. Mechanical cryo-coolers are generally not suitable for operation with SQUIDs due to their inherent magnetic and vibrational noise. In this work, we utilized a commercial Joule-Thomson microfluidic two-stage cooling system with base temperature of 75 K. We achieved successful operation of a bicrystal high-T-C SQUID gradiometer in shielded magnetic environment. The micro-cooler head contains neither moving nor magnetic parts, and thus does not affect magnetic flux noise of the SQUID even at low frequencies. Our results demonstrate that such a microfluidic cooling system is a promising technology for cooling of high-T-C SQUIDs in practical applications such as magnetic bioassays.
Physics
sensor
system
high-T-C planar SQUID gradiometers
micro-coolers
p3494
cryocooler
noise
1994
applied physics letters
superconducting quantum interference device
klich ah
v64
Författare
Alexei Kalaboukhov
Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik
E. J. de Hoon
Kryoz Technologies B.V.
K. Kuit
Kryoz Technologies B.V.
Ppppm Lerou
Kryoz Technologies B.V.
Maxim Chukharkin Leonidovich
Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik
Justin Schneiderman
Göteborgs universitet
Sobhan Sepehri
Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik
Anke Sanz-Velasco
IMT Masken und Teilungen AG
Aldo Jesorka
Chalmers, Kemi och kemiteknik, Kemi och biokemi, Fysikalisk kemi
Dag Winkler
Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik
Superconductor Science and Technology
0953-2048 (ISSN) 1361-6668 (eISSN)
Vol. 29 9Styrkeområden
Nanovetenskap och nanoteknik (2010-2017)
Ämneskategorier
Elektroteknik och elektronik
Nanoteknik
DOI
10.1088/0953-2048/29/9/095014