Unshielded SQUID Sensors for Ultra-Low-Field Magnetic Resonance Imaging

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Unshielded SQUID Sensors for Ultra-Low-Field Magnetic Resonance Imaging. / Luomahaara, Juho; Kiviranta, Mikko; Grönberg, Leif; Zevenhoven, Koos C.J.; Laine, Petteri.

julkaisussa: IEEE Transactions on Applied Superconductivity, Vuosikerta 28, Nro 4, 1600204, 01.06.2018.

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

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Luomahaara, Juho ; Kiviranta, Mikko ; Grönberg, Leif ; Zevenhoven, Koos C.J. ; Laine, Petteri. / Unshielded SQUID Sensors for Ultra-Low-Field Magnetic Resonance Imaging. Julkaisussa: IEEE Transactions on Applied Superconductivity. 2018 ; Vuosikerta 28, Nro 4.

Bibtex - Lataa

@article{7c2ab12bdc0a4679919a2a83556ec4af,
title = "Unshielded SQUID Sensors for Ultra-Low-Field Magnetic Resonance Imaging",
abstract = "We have implemented a new field-tolerant low-critical-temperature superconducting quantum interference device current sensor with submicrometer Josephson junctions. The small junction area enables the fabrication of devices with lower sensor noise and higher tolerance against magnetic fields. An application benefitting from these properties is ultra-low-field magnetic resonance imaging (ULF MRI). In the currently ongoing BREAKBEN project, new technology is being pushed forward by combining ULF MRI with magnetoencephalography in a single instrument. We describe the sensor architecture aimed for this purpose and justify the guidelines behind the design. Experimental characterization reveals that, with the aid of reasonable amount of heating, unshielded sensor operation after high magnetic pulses at least up to 150 mT appears to be possible.",
keywords = "flux trapping, magnetoencephalography, Superconducting quantum interference device, ultra-low-field magnetic resonance imaging",
author = "Juho Luomahaara and Mikko Kiviranta and Leif Gr{\"o}nberg and Zevenhoven, {Koos C.J.} and Petteri Laine",
year = "2018",
month = "6",
day = "1",
doi = "10.1109/TASC.2018.2791022",
language = "English",
volume = "28",
journal = "IEEE Transactions on Applied Superconductivity",
issn = "1051-8223",
number = "4",

}

RIS - Lataa

TY - JOUR

T1 - Unshielded SQUID Sensors for Ultra-Low-Field Magnetic Resonance Imaging

AU - Luomahaara, Juho

AU - Kiviranta, Mikko

AU - Grönberg, Leif

AU - Zevenhoven, Koos C.J.

AU - Laine, Petteri

PY - 2018/6/1

Y1 - 2018/6/1

N2 - We have implemented a new field-tolerant low-critical-temperature superconducting quantum interference device current sensor with submicrometer Josephson junctions. The small junction area enables the fabrication of devices with lower sensor noise and higher tolerance against magnetic fields. An application benefitting from these properties is ultra-low-field magnetic resonance imaging (ULF MRI). In the currently ongoing BREAKBEN project, new technology is being pushed forward by combining ULF MRI with magnetoencephalography in a single instrument. We describe the sensor architecture aimed for this purpose and justify the guidelines behind the design. Experimental characterization reveals that, with the aid of reasonable amount of heating, unshielded sensor operation after high magnetic pulses at least up to 150 mT appears to be possible.

AB - We have implemented a new field-tolerant low-critical-temperature superconducting quantum interference device current sensor with submicrometer Josephson junctions. The small junction area enables the fabrication of devices with lower sensor noise and higher tolerance against magnetic fields. An application benefitting from these properties is ultra-low-field magnetic resonance imaging (ULF MRI). In the currently ongoing BREAKBEN project, new technology is being pushed forward by combining ULF MRI with magnetoencephalography in a single instrument. We describe the sensor architecture aimed for this purpose and justify the guidelines behind the design. Experimental characterization reveals that, with the aid of reasonable amount of heating, unshielded sensor operation after high magnetic pulses at least up to 150 mT appears to be possible.

KW - flux trapping

KW - magnetoencephalography

KW - Superconducting quantum interference device

KW - ultra-low-field magnetic resonance imaging

UR - http://www.scopus.com/inward/record.url?scp=85041225549&partnerID=8YFLogxK

U2 - 10.1109/TASC.2018.2791022

DO - 10.1109/TASC.2018.2791022

M3 - Article

AN - SCOPUS:85041225549

VL - 28

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

SN - 1051-8223

IS - 4

M1 - 1600204

ER -

ID: 17473234