Author: Ilkka Suni

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AUTHOR

Ilkka Suni

showing 1 related works from this author

Sub-kelvin current amplifier using DC-SQUID

2000

Abstract We have set up a system where a low-noise DC-SQUID is used as a current amplifier. The SQUID output is read using a wide band electronics unit based on the noise cancellation scheme. The SQUID has been installed in a compact Nanoway PDR50 dilution refrigerator, and superconducting transitions of Ti/Au thermometer strips for X-ray calorimeter applications have been measured. We can operate at 100 mK using a SQUID with Pd shunt resistors. Noise and bandwidth results of the setup are presented.

PhysicsSuperconductivityCurrent-feedback operational amplifierbusiness.industryPhysics::Instrumentation and DetectorsAmplifierPhysics::Medical PhysicsSTRIPSCondensed Matter PhysicsElectronic Optical and Magnetic Materialslaw.inventionNuclear magnetic resonancelawThermometerCondensed Matter::SuperconductivityOptoelectronicsElectronicsDilution refrigeratorElectrical and Electronic EngineeringbusinessActive noise controlPhysica B: Condensed Matter

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