Short Courses

Short Courses

1. Design of Superconducting Magnets for Particle Accelerators and Detectors

Date: Sunday, September 1, 2024
Time: 8:30 am – 5:00 p.m.
Location: Salt Palace Convention Center – Room TBD
Fee: Full conference participant early: $325; regular: $400; onsite: $475
Student participant early: $250; regular: $300; onsite: $350
Fee includes a continental breakfast, boxed lunch and coffee breaks.
Instructors: Susana Izquierdo Bermudez and Herman ten Kate

Course Description: This course covers the design of superconducting magnets for particle accelerators and detectors. The lectures are intended for physicists and engineers working in the areas of magnet technology and applied superconductivity, and interested in basic principles, physical parameters, analytical and numerical tools used for superconducting magnet design. For each of the applications considered, the courses will start by presenting the properties and characteristics of superconducting strands and cables. The main concepts related to magnetic design and coil lay-outs will be then outlined. In addition, the lectures will deal with the mechanics and fabrication techniques of a superconducting magnet, focusing in particular on coils and the structural components aimed at containing the electro-magnetic forces and managing the stresses. Finally, a description of the different systems devoted to cool and protect a magnet after a quench will be provided.

2. High Temperature Superconductors: From the Materials to Magnet Technology

Date: Sunday, September 1, 2024
Time: 8:30 a.m. – 5:00 p.m.
Location: Salt Palace Convention Center – Room TBD
Fee: Full conference participant early: $325; regular: $400; onsite: $475
Student participant early: $250; regular: $300; onsite: $350
Fee includes a continental breakfast, boxed lunch and coffee breaks.
Instructors: Teresa Puig and Tengming Shen

Course Description:This course addresses the current state and prospects of high temperature superconductor (HTS) technology. After three decades of arduous development, three high-Tc cuprate materials have been developed into long-length composite conductors with high critical current density at magnetic fields or temperatures beyond the reach of Nb-Ti and Nb3Sn. The scope of the course is to illustrate the close synergetic relationship between the development of a deeper understanding of the material properties and the progresses in the conductor technology, with a focus on high field magnet applications. The course is organized in four parts:

  1. An introduction to high temperature superconductivity;
  2. The basics of HTS conductor fabrication (REBCO coated conductors, BSCCO-2223 tapes and BSCCO-2212 wires), including latest developments to improve performance;
  3. An overview of the electromagnetic, electromechanical and thermophysical properties of tape, wire, and cable conductors;
  4. Critical issues and innovative design concepts for the HTS-based magnets with an overview of noteworthy ongoing projects, including magnets for >1 GHz NMR spectroscopy, high-field fusions, and the next generation of high energy particle colliders.

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3. Superconducting Power Devices and Cryogen-Free HTS Magnets

Date: Sunday, September 1, 2024
Time: 8:30 a.m. – 5:00 p.m.
Location: Salt Palace Convention Center – Room TBD
Fee: Full conference participant early: $325; regular: $400; onsite: $475
Student participant early: $250; regular: $300; onsite: $350
Fee includes a continental breakfast, boxed lunch and coffee breaks.
Instructors: Tabea Arndt, Antonio Morandi, and Kiruba S. Haran

Course Description: Power devices using Superconductors (especially High-Temperature Superconductors HTS) can be designed to have outstanding performances e.g. very high capacitiy,  efficiency and/ or compactness. However, design and engineering have to be adopted to access the full potential using HTS. The short course on Superconducting Power Devices will be organized in four slots covering:

  1. Superconductivity for electric power grid – power cables, transformers and fault current limiters, part 1 (AM)
  2. Superconductivity for electric power grid – power cables, transformers and fault current limiters, part 2 (AM)
  3. Superconducting rotating machines (KH)
  4. Cryogen-free HTS magnets (TA).

The short course will cover the basic design of each application and present appropriate case studies underpinning the designs. The short course will provide an overview on present limitations, future directions and research needs in the field of these Superconducting Power Devices.

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4. Superconducting Electronics

Date: Sunday, September 1, 2024
Time: 8:30 a.m. – 5:00 p.m.
Location: Salt Palace Convention Center – Room TBD
Fee: Full conference participant early: $325; regular: $400; onsite: $475
Student participant early: $250; regular: $300; onsite: $350
Fee includes a continental breakfast, boxed lunch and coffee breaks.
Instructors: John Clark, Steve Anlage, Nobuyuki Yoshikawa, Britton Plourde, Kent Irwin

Introduction to Josephson Junctions and the DC SQUIDS Course Description: John Clark will begin with a brief introduction to the concept of Josephson tunneling of Cooper pairs, which he first learned about from a talk by Brian Josephson when he was a beginning graduate student at the Royal Society Mond Laboratory at the University of Cambridge, England.

An elementary Josephson junction consists of two superconducting films separated by a thin oxide layer. He will discuss the resistively shunted junction (RSJ) model, in which the two films are shunted by a normal metal film, in terms of the tilted washboard potential. This model leads to the effects of damping on the hysteresis on the current-voltage characteristic and to the theory of noise in the RSJ in both the thermal and quantum limits.

The DC SQUID (Superconducting Quantum Interference Device) consists of two resistively shunted Josephson junctions connected in series on a superconducting loop. For non-hysteretic junctions, the voltage across the SQUID is modulated with a period of one flux quantum Φ0 as the magnetic flux Φ threading the loop is swept. The noise theory for the RSJ is adapted to calculate the noise in the DC SQUID. This enables us to calculate the voltage noise across the SQUID for a given set of parameters, and hence the equivalent flux noise. The effects of thermal noise place limits on the values of SQUID parameters for practical devices.

The design and implementation of practical SQUIDs are discussed. Almost all SQUIDs are operated in a flux locked loop in which the voltage change across the SQUID due to a change in the applied flux is amplified and fed back as a flux to cancel the flux change. This provides an output voltage that is linear in the applied flux, enabling the measurement of both minute changes in flux and many flux quanta. Highly sensitive magnetometers are based on superconducting flux transformers in which a large area pickup loop is connected to a multiturn coil coupled to the SQUID. He will discuss optimization of flux transformer and achievable magnetic field sensitivities. An important practical implementation of the flux transformer is the gradiometer—both first derivative and second derivative—in which superconducting loops of matched size are coupled to the input coil of the SQUID.

RF Superconductive Electronics Course Description: This tutorial session will begin with a quick review of the basics of superconductivity and BCS theory, with a focus on electrodynamic properties. Discussion of complex conductivity and surface impedance, both in the Meissner-state and in the mixed state with magnetic vortices. We then introduce applications that make use of the unique electromagnetic properties of superconductors, including high-Q superconducting radio frequency cavities for particle accelerators, as well as planar high-Q resonators, microwave kinetic inductance detectors, low insertion-loss microwave filters, and Josephson-based travelling wave parametric amplifiers.

Superconducting Digital Circuits Course Description: Superconducting digital integrated circuit technology has been attracting attention in recent years not only for high-performance computing applications due to its high speed and low power consumption but also as an interface for quantum computers and as readout circuits for superconducting detector arrays. The goal of this course is to understand the fundamentals of superconducting digital electronics and to become acquainted with the latest research developments and future trends in this field. Initially, we will cover the principles of superconducting digital integrated circuits, including Single Flux Quantum (SFQ) and Adiabatic Quantum-Flux-Parametron (AQFP) circuits. Subsequently, we will review the latest research progress in these technologies. Lastly, the current technical challenges and the anticipated future trends will be discussed.

Physics and Engineering of Superconducting Qubits Course Description: Superconducting qubits are one of the leading systems for implementing a quantum computer. There have been significant advances in the performance of these Josephson junction-based circuits over the past two decades, and there is currently rapid progress in the development of systems with more than 100 qubits. In this short course, we will discuss the design principles for building qubits from superconducting elements and implementing quantum gates. We will discuss various decoherence mechanisms and limits to gate fidelities. Looking forward, we will consider challenges associated with scaling to large-scale quantum processors based on superconducting circuits.

Superconducting Quantum Sensors and the Search for Anxion Dark Matter: Superconducting devices are pushing the frontiers of measurement of electromagnetic signals into new limits of sensitivity. These new capabilities make it possible, for the first time, to fully search for one of the best motivated candidates for dark matter: the axion. I will describe superconducting devices used in the search for axion dark matter, including SQUIDs, qubits, and other types of single photon sensors. Different techniques and devices are needed at different frequencies, making axion searches an excellent illustration of the diverse properties of these devices. At some frequencies, a full axion search will not be possible without evading Standard Quantum Limits (SQLs). I will describe the different SQLs encountered in axion searches, how they are evaded with superconducting devices, and the properties of the devices that are needed to complete this grand challenge.

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5. Superconducting Magnet Testing

Date: Sunday, September 1, 2024
Time: 8:30 a.m. – 5:00 p.m.
Location: Salt Palace Convention Center – Room TBD
Fee: Full conference participant early: $325; regular: $400; onsite: $475
Student participant early: $250; regular: $300; onsite: $350
Fee includes a continental breakfast and a coffee break.
Instructors: Marta Baiko, Mariusz Wozniak, and Emmanuele Ravaioli
  • Course Description: This course covers aspects related to the testing of superconducting magnets. The lectures are intended for physicists and engineers who are:
    • Working in the areas of magnet technology and applied superconductivity.
    • Interested in the basic principles of testing, and of test facility construction.
  • Part 1. Superconducting Magnet Test and Test Stand by Marta Bajko
    • During the initial part of the course, participants will track the progression of a magnet through a testing facility, focusing on the various steps and measurements typically conducted for superconducting magnet characterization and/or qualification. Throughout this exploration, fundamental concepts of superconducting magnets will be introduced, with a focus on the perspective gained from testing. Prior to delving into specialized topics, the course will cover the primary components and services of a testing stand, along with typical challenges encountered during the design and construction phases.
  • Part 2. Quench detection by Mariusz Wozniak
    • This part of the course focuses on quench detection. Both theoretical and practical aspects of detecting quench in superconducting devices, such as magnets, cables and busbars, will be introduced. A particular emphasis will be placed on highlighting the difference in quench detection for Low Temperature (LTS) and High Temperature Superconductors (HTS). An interplay between quench detection and subsequent quench protection for many practical cases will be discussed as examples, relying on different numerical tools. Finally, an outlook on emerging quench detection methods and techniques will be given.
  • Part 3. Quench protection by Emanuele Ravaioli
    • This part of the course will focus on magnet quench protection. The need for protection against the effects of a quench will be explained, and the concepts of passive and active protection will be introduced. Various quench protection methods will be reviewed, including energy extraction, by-pass elements, coupled secondary coils, quench heaters, and CLIQ (Coupling-Loss Induced Quench). The advantages and disadvantages of each method will be discussed for different magnet types, and the key parameters affecting their performances will be introduced.

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Short Course Instructors

Steven M. Anlage is a Professor of Physics and member of the Quantum Materials Center, as well as faculty affiliate of the Departments of Electrical and Computer Engineering, and Materials Science and Engineering, at the University of Maryland, College Park. He received his B.S. degree in Physics from Rensselaer Polytechnic Institute in 1982, and his M.S. and Ph.D. in Applied Physics from the California Institute of Technology in 1984 and 1988, respectively. His post-doctoral work with the Beasley-Geballe-Kapitulnik group at Stanford University (1987 – 1990) concentrated on high frequency properties of high temperature superconductors. In 1990 he was appointed Assistant Professor of Physics in the Center for Superconductivity Research at the University of Maryland, then (1997) Associate Professor, and finally (2002) Full Professor of Physics. He was the interim Director of the Center for Nanophysics and Advanced Materials (2007-2009), and is a member of the Maryland NanoCenter. In 2011 he was appointed a Research Professor at the DFG-Center for Functional Nanostructures at the Karlsruhe Institute of Technology in Germany, and in 2019 a Visiting Fellow at the Institute of Advanced Studies at Loughborough University.

His research in high frequency superconductivity has addressed questions of the pairing state symmetry of the cuprate and heavy fermion superconductors, the dynamics of conductivity fluctuations and vortices, and microwave applications including several generations of superconducting metamaterials, most recently studying rf SQUID metamaterials. He has also developed and patented a near-field scanning microwave microscope for quantitative local measurements of electronic materials (dielectrics, semiconductors, metals), and developed a version that images the local nonlinear properties of superconductors. Prof. Anlage utilizes superconductors to enhance studies of photonic topological insulators and wave-chaotic microwave resonators.

Dr. Anlage is a member of the American Physical Society, the IEEE, and the Materials Research Society. His research is funded by the US National Science Foundation, the US Department of Energy, and the US Department of Defense.

Tabea Arndt holds a PhD in Physics from the University of Karlsruhe, Germany. After working at Vacuumschmelze GmbH/ Hanau, EAS & EHTS /Hanau, Bruker Biospin/ Hanau and Siemens Corporate Technology/ Erlangen, in 2019 she joined KIT/ Karlsruhe/ Germany, faculty of Electrical Engineering and Information Technology as a co-director of the Institute of Technical Physics leading the research field “Superconducting Magnet Technology”. She worked in a variety of public funded and industrial projects (NMR-s, MRI-, laboratory and industrial magnets and applications in Electrical Engineering like SFCL, Motors/ Generators and cables). She was member/ board member/ chairperson of Conectus, ISIS and representative to ESAS and now serves as the curator of the German Ministry of Economy and Climate’s Research Field “High-Temperature Superconductivity” in “Energy Efficiency in Industry”. Since 2008 she is a delegate to the IEA TCP HTS.  For a number of years she served as a member/ deputy chair of an engineering review panel for ERC-grants and as a reviewer for several foundations and state organizations. Since 2021, her research field at ITEP coordinates a collaborative research project on HTS and liquid hydrogen within the German National Hydrogen Strategy. Recently, the research team is addressing challenges in applications of windings and magnets based on 2G-HTS, again.

In 2023, the “Award for Continuing and Significant Contributions in the Field of Applied Superconductivity, Large Scale” was awarded to her at the MT conference, Aix-en-Provence, France.

Marta Bajko is the section leader at CERN TE-MPE-SF. Graduated as MSc at the Technical University of Budapest as mechanical engineer in 1994, she joint a small research team at CEDEX (Spain) where she learned about Sc magnet design and testing. In 1996 she joint CERN, and worked with Sc magnet design of corrector magnets for the LHC. From 1999 she was responsible for the final assembly steps and the technology transfer from CERN towards industry for the LHC main dipoles. Following that experience, she took the responsibility of the contract follow up for 1/3 of the total number superconducting dipoles produced in the industry for the LHC machine. After 1 year of hardware commissioning of the LHC, she took over the responsibility of the Superconducting Magnet Test facility (SM18) at CERN, that she led till 2020. Today she is the leader of an integrated test facility called the HL-LHC IT STRING, dedicated for the HL-LHC project at CERN.

John Clark was born February 10, 1942, in Cambridge, England. B.A. 1964, M.A. 1968, Ph.D. 1968 and Sc.D. 2003 from University of Cambridge. Postdoctoral Fellow Physics Department of the University of California, Berkeley 1968–1969, Assistant Professor 1969-1971, Associate Professor 1971-1973, Professor 1973-2010, Professor of the Graduate School 2010-Present, Senior Faculty Scientist, Materials Sciences Division, Lawrence Berkeley Laboratory, 1969-2010.

Learned Societies Fellow, American Association for the Advancement of Science, 1982; Fellow, American Physical Society, 1985; Fellow, Royal Society of London, 1986; Honorary Fellow, Christ’s College, Cambridge, England, 1997; Fellow, Institute of Physics (U.K.), 1999; Foreign Member, Royal Society of Arts and Sciences in Gothenburg, Sweden, 2007; International Member, National Academy of Sciences, 2012; Fellow, American Academy of Arts and Sciences, 2015; Member, American Philosophical Society, 2017; Honorary Fellow, Darwin College, Cambridge, England, 2023.

Awards Charles Vernon Boys Prize of the British Institute of Physics, 1977; Distinguished Teaching Award, University of California, Berkeley, 1983; California Scientist of the Year, 1987; Fritz London Memorial Award for Low Temperature Physics, 1987; Joseph F. Keithley Award for Advances in Measurement Science, American Physical Society, 1998; Comstock Prize in Physics, National Academy of Sciences, 1999; Lounasmaa Prize, Helsinki University of Technology and Finnish Academy of Arts and Sciences, 2004; Hughes Medal, Royal Society, 2004; Faculty Research Lecturer, University of California, Berkeley, 2005; The Berkeley Citation, 2011; Micius Quantum Prize, with Devoret and Nakamura, 2021.

Kiruba S. Haran (Fellow, IEEE) received the B.Sc. degree in electronic and electrical engineering from Obafemi Awolowo University, Ile-Ife City, Nigeria, in 1994, and the Ph.D. degree in electric power engineering from Rensselaer Polytechnic Institute, Troy, NY, USA, in 2000.

He is a professor of electrical and computer engineering with the University of Illinois, Urbana– Champaign, Urbana, IL, USA. He spent 13 years with GE Research, Niskayuna, NY, USA, as a Senior Engineer and a Manager with Electrical Machines Laboratory developing and validating megawatt scale superconducting machines for airborne power systems. His research interests include high-specific-power electrical machines and drives, with both superconducting and noncryogenic approaches. He has over 20 years of experience in developing electric machinery and is a co-founder of Hinetics LLC  (spin-off of UIUC) focusing on compact air-core electric technology.

Kent Irwin is a professor in the physics department at Stanford University and the SLAC National Accelerator Laboratory, and the director of the Hansen Experimental Physics Laboratory at Stanford. He has developed superconducting quantum sensors for the last thirty years, including the superconducting transition-edge sensors and SQUIDs that are used in all CMB experiments in the field and in TES x-ray spectrometer beamline instruments. He is now the director of the Dark Matter Radio Meter Cubed experiment, which will search for axionic dark matter. He has received awards including recognition as a Fellow of the American Physical Society and a NIST Fellow, the APS Keithley Award, the IEEE award for Continuing and Significant Contributions in the Field of Applied Superconductivity, the George Washington University Arthur S. Flemming Award, and two Department of Commerce Gold medals, the NIST Samuel Wesley Stratton Award, and the NIST Jacob Rabinow Applied Research Award.

Susana Izquierdo Bermudez holds a PhD degree from the University Polytechnical of Madrid. She is currently a staff scientist in the Superconducting Magnets and Cryostats Group at the European Organization for Nuclear Research (CERN) in Geneva. She joined the CERN Magnet group in 2010 to work on the preparation activities for the Large Hadron Collider (LHC) First Long Shut down. In 2012 she started working in the Magnet Design and Technology Section, on the development of high field Nb3Sn accelerator magnets. Since 2020, she is responsible of the Nb3Sn inner triplet quadrupole magnets for the HiLumi LHC. As of 2024, Susana leads the Large Magnet Facility section at CERN, overseeing the construction of magnets and cold masses for the HL-LHC project..

Antonio Morandi holds a PhD in Electrical Engineering. Since 2006 he is with the Department of Electrical, Electronic and Information Engineering where is professor of Electrical Engineering, Electric Energy Storage and Applied Superconductivity. He is supervisor of PhD programs on Applied Superconductivity. His research interests are on power applications of High Temperature Superconductors and advanced energy systems. He has coordinated several research projects in this field funded by Public Agencies and by private companies and has contributed to the prototyping of superconducting power apparatus (FCL and SMES) and to the development of modelling and design tools. Antonio Morandi is author of more than 60 technical papers published in international journals and conferences. He is inventor of three patents. He is reviewer of research projects in the energy sector for the European Commission, the Italian Ministry of University and Research and foreign research institutes. He has given several invited talks at international conferences and research associations and is member of several program committees in international conferences. Antonio Morandi is member of the ESAS – European Society for Applied Superconductivity board. He is member of the Italian mirror Committee IEC TC90 – Superconductivity and is member of the International Steering Committee on HTS Modeling. He has been the chairman of International Workshop HTSModelling2016 and has co-chaired the 16th European Conference on Applied Superconductivity – EUCAS 2023, Bologna, Italy from 3 – 7 September 2023. He is a senior member of IEEE and serves as associate editor for IEEE Transaction on Applied Superconductivity.

Britton Plourde received a Ph.D. in physics from the University of Illinois at Urbana-Champaign in 2000 studying vortex dynamics in superconductors. From 2000 to 2004, he was a postdoctoral scholar at the University of California, Berkeley where he worked on experiments with superconducting flux qubits. In 2005, he joined the Department of Physics at Syracuse University where he runs a low-temperature research lab investigating various aspects of superconducting circuits for quantum information processing. Plourde’s key contributions to the physics and operation of superconducting qubits and related circuits include the development of tools for qubit control and readout, and investigations of decoherence mechanisms and mitigation techniques for improved qubit performance. Prof. Plourde is a Fellow of IEEE, and he received a CAREER award from the NSF and an IBM Faculty Award. From 2013-2019 he was the Editor-in-Chief for IEEE Transactions on Applied Superconductivity, and from 2021-2022 he was the Editor-in-Chief for IEEE Transactions on Quantum Engineering.

Teresa Puig, PhD in Physics, is Research Professor and group leader of the Superconducting materials group at the Institute of Materials Science of Barcelona (ICMAB-CSIC).  She is the head of the Department of Superconducting Materials since 2008. She has served as elected board member of the European Society of Applied Superconductivity (ESAS) since 2007 and Board member of IEEE – CSC (Council of Superconductivity) since 2013. She has worked on High Temperature Superconductors (HTS) for the last 30 years, contributing in advanced thin film growth, vortex physics and integration of HTS in applications. Since the beginning of Coated Conductors (CCs) research, her group pioneered the use of low cost chemical solution methods and strongly contributed to the understanding of vortex pinning. She has always been interested in building bridges between academic knowledge and industrial needs, which also enabled many collaborations with industry. She was co-founder of Oxolutia S.L. (2010-2020) devoted to oxide superconducting coatings. Lately, she is very interested in high throughput processes for the fabrication of coated conductors and their customization for applications in energy and high energy physics, with strong collaborations with CERN. She is an ERC advanced holder who has led and contributed to prominent European and international projects and participated in numerous forums and meetings, as well as received several national awards.

Emmanuele Ravaioli defended his PhD in applied physics at the University of Twente in 2015.  He has worked on superconducting magnet quench protection, multi-physics modeling, and superconducting circuit design since 2009, at CERN and at the Lawrence Berkeley National Laboratory. He developed CLIQ (Coupling-Loss Induced System) from the concepts of Prof. Green, Glyn Kirby, and colleagues. He wrote LEDET, a computer program to perform quench protection simulations that has been used in more than 10 laboratories and universities. Together with Dr. Marchevsky, he invented a quench detection technique based on stray-capacitance monitoring. He is currently co-owner of the STEAM project for simulating transient effects in accelerator magnets.

Tengming Shen is currently a physicist staff scientist with the Berkeley Center for Magnet Technology at the Lawrence Berkeley National Laboratory, where he researches and develops LTS and HTS superconducting magnets and materials for particle accelerators, particle beam therapy, fusion, nuclear physics, and ultrastable cryogenic microscopes. Between 2010 and 2015, he was a Peoples Fellow and a scientist with Fermilab. Dr. Shen obtained his PhD in electrical engineering in 2010 at the Florida State University with a thesis on Ag/Bi-2212 round wires and magnets at the National High Magnetic Field Laboratory. His work with HTS materials and magnets has earned him several awards, including an early career award from the U.S. Department of Energy, Peoples Fellowship from Fermilab, Cryogenic Materials for Excellence award from the International Cryogenic Materials Conference, and Roger Boom Award from the Cryogenic Society of America. He has been active at ASC’s, and serves as a board member and the materials program chair for the ASC 2022.He taught short courses on HTS superconducting materials and magnets at the ASC 2016, ASC 2020, and ASC2022 and enjoyed the experience.

Herman ten Kate (Dutch, born in 1955) is Emeritus Professor at the University of Twente where he was educated and stared his carrier in 1980; since 1997 occupying the Chair of Industrial Application of Superconductivity. In addition he worked at CERN from 1996 until his retirement in April 2020 as Magnet System Project Leader of the ATLAS Experiment, comprising the world’s largest operational superconducting magnet of three huge toroidal magnets and a solenoid. With his team he supported other detector magnet developments and coordinated dedicated R&D for new particle physics experiments like for the Future Circular Collider, linear colliders as CLIC/ILC, antimatter detector PANDA, neutrino detector BabyMIND and solar axions detector (Baby)IAXO. He continued his work at CERN as honorable member and contributing retiree at the Experimental Physics Department. In July 2013 he received the IEEE lifetime Award for Continuing and Significant Contributions in the Field of Applied Superconductivity. At the University of Twente he continued his work for guiding PhD students, participating in various magnet review committees, and supporting various R&D projects in collaboration with industries and institutes around the globe.

Mariusz Wozniak holds an M.Sc. in electrical engineering from Lublin University of Technology, Poland, and a Ph.D. in Materials Science and Metallurgy from the University of Cambridge, UK. After his Ph.D., he worked as a postdoctoral researcher at the University of Cambridge, UK, on DC superconducting cables for power applications. He has spent several years working in industrial R&D on MRI superconducting magnets at Siemens Magnet Technology in Oxford, UK. In 2021, he moved to the Machine Protection & Electrical Integrity (MPE) group in the Technology (TE) department at CERN, Switzerland. Dr Wozniak, with his colleague Dr Emmanuele Ravaioli, leads the project on tools development for the Simulation of Transient Effects in Accelerator Magnets (STEAM, https://cern.ch/steam). Dr Wozniak’s research focuses on the multidisciplinary nature of quench in superconducting magnets and related challenges for numerical tools.

Nobuyuki Yoshikawa currently serves as a professor at the Institute of Advanced Sciences (IAS) at Yokohama National University (YNU), where he leads the superconductivity electronics group. He earned his Ph.D. in Electrical and Computer Engineering (ECE) from YNU in 1989 and has since been affiliated with YNU’s ECE Department. His research primarily centers on superconductive devices and their integration into digital and analog circuits. Presently, his focus is on developing highly energy-efficient superconducting digital circuits, particularly those that employ Adiabatic Quantum-Flux Parametron (AQFP) and Single Flux Quantum (SFQ) logic, with an aim towards high-performance computing applications. Yoshikawa has authored or co-authored over 300 journal publications. In 2023, he was honored with the IEEE Council on Superconductivity (CSC) Award for Continuing and Significant Contributions in the field of applied superconductivity. He is a Fellow of the IEEE.

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