Optimized SQUID sensors for low frequency measurements

Jari S. Penttilä, Leif Grönberg, Juha Hassel, Mikko Kiviranta

Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review

6 Citations (Scopus)

Abstract

We have fabricated and measured optimized SQUID sensors (superconducting quantum interference device) for low frequency measurements of magnetic field. We have also investigated the dependence of flux trapping field on the position of Josephson junctions with respect to the Ketchen-type washer.
The sensors are measured using direct room temperature readout utilizing noise cancellation techniques based on negative and positive feedback.
A superconducting magnesium diboride can is used to shield the sample in pulse-tube cryocooler measurements.
Original languageEnglish
Article number052209
JournalJournal of Physics: Conference Series
Volume150
Issue numberPart 5
DOIs
Publication statusPublished - 2009
MoE publication typeA4 Article in a conference publication
Event25th International Conference on Low Temperature Physics - Amsterdam, Netherlands
Duration: 6 Aug 200913 Aug 2009

Fingerprint

frequency measurement
washers
low frequencies
negative feedback
positive feedback
sensors
cancellation
Josephson junctions
readout
magnesium
trapping
tubes
interference
room temperature
pulses
magnetic fields

Cite this

@article{f65c2e2abad6447e8f5562f0ab456a0e,
title = "Optimized SQUID sensors for low frequency measurements",
abstract = "We have fabricated and measured optimized SQUID sensors (superconducting quantum interference device) for low frequency measurements of magnetic field. We have also investigated the dependence of flux trapping field on the position of Josephson junctions with respect to the Ketchen-type washer. The sensors are measured using direct room temperature readout utilizing noise cancellation techniques based on negative and positive feedback. A superconducting magnesium diboride can is used to shield the sample in pulse-tube cryocooler measurements.",
author = "Penttil{\"a}, {Jari S.} and Leif Gr{\"o}nberg and Juha Hassel and Mikko Kiviranta",
note = "Project code: 23861",
year = "2009",
doi = "10.1088/1742-6596/150/5/052209",
language = "English",
volume = "150",
journal = "Journal of Physics: Conference Series",
issn = "1742-6588",
publisher = "Institute of Physics IOP",
number = "Part 5",

}

Optimized SQUID sensors for low frequency measurements. / Penttilä, Jari S.; Grönberg, Leif; Hassel, Juha; Kiviranta, Mikko.

In: Journal of Physics: Conference Series, Vol. 150, No. Part 5, 052209, 2009.

Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review

TY - JOUR

T1 - Optimized SQUID sensors for low frequency measurements

AU - Penttilä, Jari S.

AU - Grönberg, Leif

AU - Hassel, Juha

AU - Kiviranta, Mikko

N1 - Project code: 23861

PY - 2009

Y1 - 2009

N2 - We have fabricated and measured optimized SQUID sensors (superconducting quantum interference device) for low frequency measurements of magnetic field. We have also investigated the dependence of flux trapping field on the position of Josephson junctions with respect to the Ketchen-type washer. The sensors are measured using direct room temperature readout utilizing noise cancellation techniques based on negative and positive feedback. A superconducting magnesium diboride can is used to shield the sample in pulse-tube cryocooler measurements.

AB - We have fabricated and measured optimized SQUID sensors (superconducting quantum interference device) for low frequency measurements of magnetic field. We have also investigated the dependence of flux trapping field on the position of Josephson junctions with respect to the Ketchen-type washer. The sensors are measured using direct room temperature readout utilizing noise cancellation techniques based on negative and positive feedback. A superconducting magnesium diboride can is used to shield the sample in pulse-tube cryocooler measurements.

U2 - 10.1088/1742-6596/150/5/052209

DO - 10.1088/1742-6596/150/5/052209

M3 - Article in a proceedings journal

VL - 150

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - Part 5

M1 - 052209

ER -