Conferences related to SQUID magnetometers

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2020 IEEE International Magnetic Conference (INTERMAG)

INTERMAG is the premier conference on all aspects of applied magnetism and provides a range of oral and poster presentations, invited talks and symposia, a tutorial session, and exhibits reviewing the latest developments in magnetism.


2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)

Science, technology and applications spanning the millimeter-waves, terahertz and infrared spectral regions


2019 Joint Conference of the IEEE International Frequency Control Symposium anEuropean Frequency and Time Forum (EFTF/IFC)

The 33RD European Frequency and Time Forum and the 73rd consecutive meeting of the IEEE International Frequency Control Symposium will be held as a joint conference in Orlando, Florida, USA April 14-18, 2019. The conference will provide information on recent advances and trends on scientific research, development and manufacturing technology in the area of frequency and time and frequency control. A technical exhibition will be held during the conference, which will be hosted at the Caribe Royale Hotel and Convention Center.


2018 IEEE 18th International Conference on Nanotechnology (IEEE-NANO)

Nanotechnology


2018 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD)

International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD 2018) will be held from April 15 to 18, 2018 in Tianjin, sponsored by IEEE Beijing Section. ASEMD2018 continues the focus on the applied superconductivity and electromagnetic devices. It provides a forum for both university and industry academic researchers and experts in the relevant fields to discuss and share ideas, present results, reflect on past experiences and discuss future developments. The scope of the conference includes principally the following topics:Strong Current and Large Scale Applied SuperconductivitySuperconducting ElectronicsSuperconducting MaterialsElectromagnetic MaterialsElectromagnetic DevicesElectric Power DevicesElectrical MachinesEnergy Efficiency DevicesPower Electronic Devices and CircuitsMechatronicsControl and Measurement Computing and Informatics

  • 2015 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD)

    International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD2015) will be held from 20 to 23 November 2015 in Shanghai, sponsored by IEEE Beijing Section. ASEMD2015 continues the focus on the applied superconductivity and electromagnetic devices. It provides a forum for both university and industry academic researchers and experts in the relevant fields to discuss and share ideas, present results, reflect on past experiences and discuss future developments. The accepted conference papers will be uploaded to the IEEE Xplore and EI indexed.The scope of the conference includes principally the following topics:Strong Current and Large Scale Applied SuperconductivitySuperconducting ElectronicsSuperconducting MaterialsElectromagnetic MaterialsElectromagnetic DevicesElectric Power DevicesElectrical MachinesEnergy Efficiency DevicesPower Electronic Devices and CircuitsMechatronicsControl and Measurement Computing and Informatics

  • 2013 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD)

    Strong Current and Large Scale Applied SuperconductivitySuperconducting ElectronicsSuperconducting and Electromagnetic MaterialsElectromagnetic DevicesElectric Power DevicesElectrical MachinesEnergy Efficiency DevicesPower Electronic Devices and CircuitsControl and Measurement Applied superconductivity, Electromagnetic devices, Electric machine, Electric power, Electronic devices, Strong current and large scale superconductor applications, Superconducting materials, Electromagnetic materials, Control, Measurement

  • 2011 International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD)

    Strong Current and Large Scale Applied Superconductivity, Superconducting Electronics, Superconducting and Electromagnetic Materials, Electromagnetic Devices, Electric Power Devices, Electrical Machines, Energy Efficiency Devices, Power Electronic Devices and Circuits, Control and Measurement.

  • 2009 International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD)

    Strong Current and Large Scale Applied Superconductivity Superconducting Electronics Superconducting and Electromagnetic Materials Electromagnetic Devices Electric Power Devices Electrical Machines Energy Efficiency Devices Power Electronic Devices and Circuits Advanced Devices of Control and Measurement


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Periodicals related to SQUID magnetometers

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Applied Superconductivity, IEEE Transactions on

Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission


Biomedical Circuits and Systems, IEEE Transactions on

The Transactions on Biomedical Circuits and Systems addresses areas at the crossroads of Circuits and Systems and Life Sciences. The main emphasis is on microelectronic issues in a wide range of applications found in life sciences, physical sciences and engineering. The primary goal of the journal is to bridge the unique scientific and technical activities of the Circuits and Systems ...


Biomedical Engineering, IEEE Transactions on

Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.


Electromagnetic Compatibility, IEEE Transactions on

EMC standards; measurement technology; undesired sources; cable/grounding; filters/shielding; equipment EMC; systems EMC; antennas and propagation; spectrum utilization; electromagnetic pulses; lightning; radiation hazards; and Walsh functions


Electron Devices, IEEE Transactions on

Publishes original and significant contributions relating to the theory, design, performance and reliability of electron devices, including optoelectronics devices, nanoscale devices, solid-state devices, integrated electronic devices, energy sources, power devices, displays, sensors, electro-mechanical devices, quantum devices and electron tubes.


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Most published Xplore authors for SQUID magnetometers

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Xplore Articles related to SQUID magnetometers

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Medium noise and grain size analysis of CoCrPt/Ti perpendicular media with NiAl seed layer

IEEE Transactions on Magnetics, 2001

Perpendicular medium with an average grain size of 8.2 nm have been produced by using a-CoCrPt/Ti/NiAl tri-layer structure. The signal-to-noise ratio for the tri-layer medium is 2-7 dB higher than CoCrPt/Ti bi-layer medium at low deposition temperatures. The medium noise is dominated by dc noise and exhibits little transition noise for densities less than 500 kFCI. The ultra- small grain ...


Effect of repetitive transmitter signals on SQUID response in geophysical TEM

IEEE Transactions on Applied Superconductivity, 2001

Results of SQUID application in geophysical time domain transient electromagnetic (TEM) measurements are presented. We analyze peculiarities of SQUID TEM recordings, comparing them to data of commonly used induction coil. Two significant effects have been observed with the SQUID TEM system which are less pronounced or not observed in corresponding reference coil data. We consider a model for SQUID TEM ...


Proposal of fully complex-valued neural networks

[Proceedings 1992] IJCNN International Joint Conference on Neural Networks, 1992

A novel neural network that processes input vectors and attractors fully in complex space is proposed. Real and imaginary data are treated consistently with an equivalent significance. This network can be applied for ill-posed problems concerning realistic physical objects, e.g., brain current estimations using highly sensitive magnetometers and sonic field reconstructions. A kind of local minima existing in conventional neural ...


High slew rate large bandwidth integrated dc SQUID magnetometer for NMR applications

IEEE Transactions on Applied Superconductivity, 1995

We have developed an integrated dc SQUID magnetometer, with additional positive feedback (APF) unmodulated SQUID electronics system for low frequency true NMR applications. We constructed our SQUID circuit using an 11-layer Nb/Al/AlO/sub x//Nb process. Our design modifies previous APF approaches by incorporating selectable, high resolution on-chip feedback resistance. The on- chip resistance selection allows us to maximize the SQUID gain, ...


Low-noise, single-layer YBa/sub 2/Cu/sub 3/O/sub 7-x/ DC SQUID magnetometers at 77 K

IEEE Transactions on Applied Superconductivity, 1995

We describe a low-noise dc Superconducting QUantum Interference Device (SQUID) magnetometer that is fabricated from a single layer of YBa/sub 2/Cu/sub 3/O/sub 7-x/ on a 2 cm/spl times/2 cm bicrystal substrate. The magnetometer design consists of a single-turn pickup loop that is directly coupled to a low inductance SQUID. Using conventional flux-locked loop electronics with bias current reversal, the white ...


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Educational Resources on SQUID magnetometers

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IEEE.tv Videos

The Josephson Effect: SQUIDs Then and Now: From SLUGS to Axions
ISEC 2013 Special Gordon Donaldson Session: Remembering Gordon Donaldson - 7 of 7 - SQUID-based noise thermometers for sub-Kelvin thermometry
ASC-2014 SQUIDs 50th Anniversary: 3 of 6 - Bob Fagaly
ASC-2014 SQUIDs 50th Anniversary: 2 of 6 - John Clarke - The Ubiquitous SQUID
ASC-2014 SQUIDs 50th Anniversary: 1 of 6 Arnold Silver
ISEC 2013 Special Gordon Donaldson Session: Remembering Gordon Donaldson - 5 of 7 - SQUID Instrumentation for Early Cancer Diagnostics
ASC-2014 SQUIDs 50th Anniversary: 5 of 6 - Ronny Stolz - SQUIDs in Geophysics
ASC-2014 SQUIDs 50th Anniversary: 4 of 6 - Keiji Enpuku
ISEC 2013 Special Gordon Donaldson Session: Remembering Gordon Donaldson - 6 of 7 - A high sensitive magnetometer system for natural magnetic field measurements
One HTS Josephson Junction, An Array of Applications: Has anything come from HTS devices in the last 30 years?
ISEC 2013 Special Gordon Donaldson Session: Remembering Gordon Donaldson - 3 of 7 - MEG and ULF-MRI
ISEC 2013 Special Gordon Donaldson Session: Remembering Gordon Donaldson - 4 of 7 - MRI at 130 Microtesla
ASC-2014 SQUIDs 50th Anniversary: 6 of 6 - Kent Irwin - SQUIDs as detectors for cosmology
ISEC 2013 Special Gordon Donaldson Session: Remembering Gordon Donaldson - 2 of 7 - Gordon Donaldson: A Memory - part II - Colin Pegrum
ISEC 2013 Special Gordon Donaldson Session: Remembering Gordon Donaldson - 1 of 7 - Gordon Donaldson: A Memory - part I - John Clarke

IEEE-USA E-Books

  • Medium noise and grain size analysis of CoCrPt/Ti perpendicular media with NiAl seed layer

    Perpendicular medium with an average grain size of 8.2 nm have been produced by using a-CoCrPt/Ti/NiAl tri-layer structure. The signal-to-noise ratio for the tri-layer medium is 2-7 dB higher than CoCrPt/Ti bi-layer medium at low deposition temperatures. The medium noise is dominated by dc noise and exhibits little transition noise for densities less than 500 kFCI. The ultra- small grain size will improve the performance of perpendicular media for future high-density recording applications.

  • Effect of repetitive transmitter signals on SQUID response in geophysical TEM

    Results of SQUID application in geophysical time domain transient electromagnetic (TEM) measurements are presented. We analyze peculiarities of SQUID TEM recordings, comparing them to data of commonly used induction coil. Two significant effects have been observed with the SQUID TEM system which are less pronounced or not observed in corresponding reference coil data. We consider a model for SQUID TEM measurements, taking into account the effect of repetitive transmitter signals which gives a possible explanation for these effects.

  • Proposal of fully complex-valued neural networks

    A novel neural network that processes input vectors and attractors fully in complex space is proposed. Real and imaginary data are treated consistently with an equivalent significance. This network can be applied for ill-posed problems concerning realistic physical objects, e.g., brain current estimations using highly sensitive magnetometers and sonic field reconstructions. A kind of local minima existing in conventional neural networks can be extinguished in this system because the proposed neural network deals with the data in a doubled dimension. Conventional systems using only real values do so in a degenerate space. The dynamics of the fully complex-valued neural networks are presented and the features are analyzed.<<ETX>>

  • High slew rate large bandwidth integrated dc SQUID magnetometer for NMR applications

    We have developed an integrated dc SQUID magnetometer, with additional positive feedback (APF) unmodulated SQUID electronics system for low frequency true NMR applications. We constructed our SQUID circuit using an 11-layer Nb/Al/AlO/sub x//Nb process. Our design modifies previous APF approaches by incorporating selectable, high resolution on-chip feedback resistance. The on- chip resistance selection allows us to maximize the SQUID gain, dV/d/spl Phi/, at the operating point. With the use of APF we have achieved a slew rate greater than 10/sup 6/ /spl Phi//sub 0//s, and a bandwidth of approximately 300 kHz, which is suitable for sensitive NMR measurements.<<ETX>>

  • Low-noise, single-layer YBa/sub 2/Cu/sub 3/O/sub 7-x/ DC SQUID magnetometers at 77 K

    We describe a low-noise dc Superconducting QUantum Interference Device (SQUID) magnetometer that is fabricated from a single layer of YBa/sub 2/Cu/sub 3/O/sub 7-x/ on a 2 cm/spl times/2 cm bicrystal substrate. The magnetometer design consists of a single-turn pickup loop that is directly coupled to a low inductance SQUID. Using conventional flux-locked loop electronics with bias current reversal, the white flux noise of several of these magnetometers operated at 77 K is observed to be as low as 2.2 /spl mu//spl Phi//sub 0///spl radic/Hz above 10 kHz, increasing to about 5.7 /spl mu//spl Phi//sub 0///spl radic/Hz at 1 Hz. The field-to-flux conversion efficiency is measured to be 4.6 nT//spl Phi//sub 0/, resulting in a white magnetic field noise of to fT//spl radic/Hz above 10 kHz, increasing to 26 fT//spl radic/Hz at 1 Hz.<<ETX>>

  • SQUID detection of electronic circuits

    The author reports on the use of a SQUID (superconducting quantum interference device) magnetometer to detect audio-frequency timing signals from electronic and electromechanical clock circuits. Narrowband spectrum analysis was used to determine the quality factor (Q) in one case. Magnetic field maps indicated that the source of the magnetic fields could be localized to better than 1 mm. X-rays showed the presence of circuit elements in the region of the magnetic field maxima. Interpretation of the field sources as magnetic dipoles yielded m/sub 2/ values ranging from 10/sup -6/ Am/sup 2/ to 10/sup -8/ Am/sup 2/. The implication of this work is that SQUID magnetometers have potential use in noncontact detection of timing signals of timing circuits and microprocessors.<<ETX>>

  • Three-dimensional positioning setup for magnetometer sensors

    As the sensors of many magnetometers, such as SQUID magnetometers, are not directly accessible, their spatial location is often known only approximately. To be able to position such sensors more accurately, a novel measuring setup has been developed to determine the sensor location by means of magnetic measurements. The system has a resolution of better than 0.1 mm. It can be used with virtually any magnetometer that is capable of working in inhomogeneous fields. Measurements with SQUIDs inside two different commercial Dewars yielded out-of-axis sensor displacements of 1.6 mm and 7.5 mm, which show clearly that the performing of such measurements is essential in experiments where the exact sensor location could be crucial.

  • First results for a novel superconducting imaging-surface sensor array

    A superconducting imaging-surface system was constructed using 12 coplanar thin-film SQUID magnetometers located parallel to and spaced 2 cm from a 25 cm diameter lead imaging-plane. Some measurements included two additional sensors on the "back" side of the superconducting imaging-plane to study the field symmetry for our system. Performance was measured in a shielded can and in the open laboratory environment. Data from this system has been used to: (a) understand the noise characteristics of the dewar-SQUID imaging plate arrangement, (b) to verify the imaging principle, (c) measure the background rejection factor of the imaging plane, and (d) compare superconducting materials for the imaging plane. A phantom source field was measured at the sensors as a function of phantom distance from the sensor array to verify the imaging theory. Both the shape and absolute values of the measured and predicted curves agree very well indicating the system Is behaving as a gradiometer in accordance with theory. The output from SQUIDs located behind the imaging surface that sense background fields can be used for software or analog background cancellation. Fields arising from sources close to the imaging plane were shielded form the background sensors by more than a factor of 1000. Measurement of the symmetry of sensor sensitivity to uniform fields exactly followed theoretical predictions.

  • Calculation Of The Magnetic Field Of A Muscle Fiber As Measured By A Squid Magnetometer

    None

  • Analysis of Critical State Response in Thin Films by AC Susceptibility Measurements

    Low frequency AC magnetic response of the Nb thin film in perpendicular oscillating applied fields is detected by continuously reading SQUID magnetometer. Harmonic analysis of the temperature dependence of the nonlinear AC susceptibility gives excellent agreement with the susceptibility calculated on basis of model of the hysteretic critical state in 2D disk. This complete analytical model relates to Bean's critical state described by the critical depinning current density. We map the experimental and model data and we trace the temperature dependence of the critical current density. The model fits up to temperature above which nonlinear response turns to linear one. This technique is also suitable for characterization of HTS thin films.



Standards related to SQUID magnetometers

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