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Cryogenic Differential Amplifier for NMR Applications

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Zavjalov, V. V.
dc.contributor.author Savin, A. M.
dc.contributor.author Hakonen, P. J.
dc.date.accessioned 2019-01-14T09:20:18Z
dc.date.available 2019-01-14T09:20:18Z
dc.date.issued 2018
dc.identifier.citation Zavjalov , V V , Savin , A M & Hakonen , P J 2018 , ' Cryogenic Differential Amplifier for NMR Applications ' , Journal of Low Temperature Physics . https://doi.org/10.1007/s10909-018-02130-1 en
dc.identifier.issn 0022-2291
dc.identifier.issn 1573-7357
dc.identifier.other PURE UUID: 33ddef4d-8889-4eb0-84e4-b5ec7e96635d
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/cryogenic-differential-amplifier-for-nmr-applications(33ddef4d-8889-4eb0-84e4-b5ec7e96635d).html
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85058714705&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/31374270/Zavjalov2018_Article_CryogenicDifferentialAmplifier.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/35936
dc.description | openaire: EC/H2020/670743/EU//QuDeT
dc.description.abstract We have designed and characterized a cryogenic amplifier for use in 3He NMR spectrometry. The amplifier, with a power consumption of ∼ 2.5 mW, works at temperatures down to 4 K. It has a high-impedance input for measuring a signal from NMR resonant circuit, and a 50 Ω differential input which can be used for pick-up compensation and gain calibration. At 4.2 K, the amplifier has a voltage gain of 45, output resistance 146 Ω and a 4.4 MHz bandwidth starting from DC. At 1 MHz, the voltage and current noise amount to 1.3 nV/Hz and 12 fA/Hz, respectively, which yields an optimal source impedance of ∼ 100 kΩ. en
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation info:eu-repo/grantAgreement/EC/H2020/670743/EU//QuDeT
dc.relation.ispartofseries Journal of Low Temperature Physics en
dc.rights openAccess en
dc.subject.other Atomic and Molecular Physics, and Optics en
dc.subject.other Materials Science(all) en
dc.subject.other Condensed Matter Physics en
dc.subject.other 114 Physical sciences en
dc.title Cryogenic Differential Amplifier for NMR Applications en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Centre of Excellence in Quantum Technology, QTF
dc.contributor.department Department of Applied Physics en
dc.subject.keyword Cryogenic amplifier
dc.subject.keyword Differential input
dc.subject.keyword HEMT
dc.subject.keyword Low-noise
dc.subject.keyword Atomic and Molecular Physics, and Optics
dc.subject.keyword Materials Science(all)
dc.subject.keyword Condensed Matter Physics
dc.subject.keyword 114 Physical sciences
dc.identifier.urn URN:NBN:fi:aalto-201901141119
dc.identifier.doi 10.1007/s10909-018-02130-1

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