All Stories

  1. Progress of a Meter-Long Bulk High-Temperature Superconducting Undulator at PSI

    Article • IEEE Transactions on Applied Superconductivity, August 2026, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  2. Investigation of Magnetic Properties in Precisely Machined RE-Ba-Cu-O Bulk Superconductors for Use in Undulator Systems

    Article • IEEE Transactions on Applied Superconductivity, May 2026, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  3. Modeling and Experimental Result of a Double Staggered-Array Helical Undulator Made of Stacked RE-Ba-Cu-O Tapes

    Article • IEEE Transactions on Applied Superconductivity, May 2026, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  4. Enhancing hard X-ray beamline performance at SwissFEL through spontaneous radiation measurements

    Article • Journal of Synchrotron Radiation, January 2026, International Union of Crystallography

    Dr Marco Calvi

  5. Development of a Magnetic Field Measurement System for a REBCO Bulk Superconducting Undulator at SXFEL

    Article • IEEE Transactions on Applied Superconductivity, January 2026, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  6. Demonstration of Mode-Locked Frequency Comb for an X-Ray Free-Electron Laser

    Article • Physical Review Letters, December 2025, American Physical Society (APS)

    Dr Marco Calvi

  7. Breakthrough in field amplitude of high-temperature superconductors staggered-array undulators

    Article • Physical Review Research, October 2025, American Physical Society (APS)

    Dr Marco Calvi

  8. Advances in Magnetic Sensors and Their Applications

    Article • Sensors, September 2025, MDPI AG

    Dr Marco Calvi

  9. Feed-forward neural network surrogate model for rapid simulations of a high-temperature superconducting bulk undulator

    Article • Superconductor Science and Technology, August 2025, Institute of Physics Publishing

    Dr Marco Calvi

  10. Progress in the Development of a 50-Period HTS Undulator for SXFEL

    Article • IEEE Transactions on Applied Superconductivity, August 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  11. Opportunities for gas-phase science at short-wavelength free-electron lasers with undulator-based polarization control

    Article • Physical Review Research, January 2025, American Physical Society (APS)

    Dr Marco Calvi

  12. Numerical Modeling and Design Optimization of a MgB 2 Bulk Superconducting Undulator

    Article • IEEE Transactions on Applied Superconductivity, January 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  13. Recent progress in high-temperature superconducting undulators

    Article • Superconductivity, December 2024, Elsevier

    Dr Marco Calvi

  14. Experimental Demonstration of Mode-Coupled and High-Brightness Self-Amplified Spontaneous Emission in an X-Ray Free-Electron Laser

    Article • Physical Review Letters, November 2024, American Physical Society (APS)

    Dr Marco Calvi

  15. Experimental results of a YBCO bulk superconducting undulator magnetic optimization

    Article • Physical Review Accelerators and Beams, October 2024, American Physical Society (APS)

    Dr Marco Calvi

  16. Demonstration of full polarization control of soft X-ray pulses with Apple X undulators at SwissFEL using recoil ion momentum spectroscopy

    Article • Journal of Synchrotron Radiation, August 2024, International Union of Crystallography

    Dr Marco Calvi

  17. Electromagnetic Design Study of a 12-mm-Period Bulk High-Temperature Superconducting Undulator

    Article • IEEE Transactions on Applied Superconductivity, August 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  18. Enhanced X-ray free-electron laser performance with optical klystron and helical undulators

    Article • Journal of Synchrotron Radiation, June 2024, International Union of Crystallography

    Dr Marco Calvi

  19. Pulse magnetized superconducting bulk array undulator concept

    Article • Physical Review Research, June 2024, American Physical Society (APS)

    Dr Marco Calvi

  20. The CompactLight Design Study

    Article • The European Physical Journal Special Topics, March 2024, Springer Science + Business Media

    Dr Marco Calvi

  21. Experimental characterization of the optical klystron effect to measure the intrinsic energy spread of high-brightness electron beams

    Article • Physical Review Accelerators and Beams, March 2024, American Physical Society (APS)

    Dr Marco Calvi

  22. An X-ray free-electron laser with a highly configurable undulator and integrated chicanes for tailored pulse properties

    Article • Nature Communications, August 2023, Springer Science + Business Media

    Dr Marco Calvi

  23. GdBCO bulk superconducting helical undulator for x-ray free-electron lasers

    Article • Physical Review Research, August 2023, American Physical Society (APS)

    Dr Marco Calvi

  24. Record field in a 10 mm-period bulk high-temperature superconducting undulator

    Article • Superconductor Science and Technology, March 2023, Institute of Physics Publishing

    Dr Marco Calvi

  25. Versatile modulators for laser-based FEL seeding at SwissFEL

    Article • Journal of Synchrotron Radiation, February 2023, International Union of Crystallography

    Dr Marco Calvi

  26. Dispersion-free steering beam based alignment at SwissFEL

    Article • Journal of Physics Conference Series, January 2023, Institute of Physics Publishing

    Dr Marco Calvi

  27. Characterization of helical APPLE X undulators with 90 mm period for the European XFEL

    Article • Journal of Physics Conference Series, December 2022, Institute of Physics Publishing

    Dr Marco Calvi

  28. Review and prospects of world-wide superconducting undulator development for synchrotrons and FELs

    Article • Superconductor Science and Technology, July 2022, Institute of Physics Publishing

    Dr Marco Calvi

  29. Inverse analysis of critical current density in a bulk high-temperature superconducting undulator

    Article • Physical Review Accelerators and Beams, April 2022, American Physical Society (APS)

    Dr Marco Calvi

  30. Undulators and Light Production with the XLS-CompactLight Design Study

    Article • Moscow University Physics Bulletin, April 2022, Allerton Press

    Dr Marco Calvi

  31. Demonstration of a compact x-ray free-electron laser using the optical klystron effect

    Article • Applied Physics Letters, October 2021, American Institute of Physics

    Eduard Prat, Dr Marco Calvi

  32. Fully-staggered-array bulk Re-Ba-Cu-O short-period undulator: large-scale 3D electromagnetic modelling and design optimization using A-V and H-formulation methods

    Article • Superconductor Science and Technology, August 2021, Institute of Physics Publishing

    Dr Marco Calvi

  33. Magnetization Current Simulation of High-Temperature Bulk Superconductors Using the ANSYS Iterative Algorithm Method

    Article • IEEE Transactions on Applied Superconductivity, March 2021, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  34. Analysis of the first magnetic results of the PSI APPLE X undulators in elliptical polarisation

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, January 2021, Elsevier

    Dr Marco Calvi

  35. A compact and cost-effective hard X-ray free-electron laser driven by a high-brightness and low-energy electron beam

    Article • Nature Photonics, November 2020, Springer Science + Business Media

    Dr Marco Calvi

  36. Fast and efficient critical state modelling of field-cooled bulk high-temperature superconductors using a backward computation method

    Article • Superconductor Science and Technology, October 2020, Institute of Physics Publishing

    Dr Marco Calvi

  37. Characterization of the Electron Beam in the ACHIP Chamber in SwissFEL

    Article • Journal of Physics Conference Series, July 2020, Institute of Physics Publishing

    Dr Marco Calvi

  38. Numerical Design Optimization of Short-Period HTS Staggered Array Undulators

    Article • IEEE Transactions on Applied Superconductivity, June 2020, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  39. Calibration and Characterization of a Reduced Form-Factor High Accuracy Three-Axis Teslameter

    Article • Electronics, January 2020, MDPI AG

    Dr Marco Calvi

  40. Magnetization simulation of ReBCO tape stack with a large number of layers using the ANSYS A-V-A formulation

    Article • IEEE Transactions on Applied Superconductivity, January 2020, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  41. A GdBCO bulk staggered array undulator

    Article • Superconductor Science and Technology, December 2019, Institute of Physics Publishing

    Dr Marco Calvi

  42. Challenges in simulating beam dynamics of dielectric laser acceleration

    Article • International Journal of Modern Physics A, November 2019, World Scientific Pub Co Pte Lt

    Dr Marco Calvi

  43. Performance Analysis of a Reduced Form-Factor High Accuracy Three-Axis Teslameter

    Article • Electronics, October 2019, MDPI AG

    Dr Marco Calvi

  44. The SwissFEL soft X-ray free-electron laser beamline: Athos

    Article • Journal of Synchrotron Radiation, June 2019, International Union of Crystallography

    Dr Marco Calvi

  45. Development of a new magnetic measurement bench for in-vacuum undulators

    Article • SN Applied Sciences, June 2019, Springer Science + Business Media

    Dr Marco Calvi

  46. SwissFEL Aramis beamline photon diagnostics. Erratum

    Article • Journal of Synchrotron Radiation, May 2019, International Union of Crystallography

    Pavle Juranic, Dr Marco Calvi

  47. Design and Development of a Reduced Form-Factor High Accuracy Three-Axis Teslameter

    Article • Electronics, March 2019, MDPI AG

    Dr Marco Calvi

  48. The ACHIP experimental chambers at the Paul Scherrer Institut

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, November 2018, Elsevier

    Dr Marco Calvi

  49. APPLE X Undulator for the SwissFEL Soft X-ray Beamline Athos

    Article • Synchrotron Radiation News, May 2018, Taylor & Francis

    Dr Marco Calvi

  50. Magnetic assessment and modelling of the Aramis undulator beamline

    Article • Journal of Synchrotron Radiation, April 2018, International Union of Crystallography

    Dr Marco Calvi

  51. Outline of a dielectric laser acceleration experiment at SwissFEL

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, September 2017, Elsevier

    Dr Marco Calvi

  52. SwissFEL: The Swiss X-ray Free Electron Laser

    Article • Applied Sciences, July 2017, MDPI AG

    Dr Marco Calvi

  53. Transverse gradient in Apple-type undulators

    Article • Journal of Synchrotron Radiation, April 2017, International Union of Crystallography

    Dr Marco Calvi

  54. Commissioning experience and beam physics measurements at the SwissFEL Injector Test Facility

    Article • Physical Review Accelerators and Beams, October 2016, American Physical Society (APS)

    Dr Marco Calvi

  55. Undulator beamline optimization with integrated chicanes for X-ray free-electron-laser facilities

    Article • Journal of Synchrotron Radiation, May 2016, International Union of Crystallography

    Eduard Prat, Dr Marco Calvi

  56. Generation of ultra-large-bandwidth X-ray free-electron-laser pulses with a transverse-gradient undulator

    Article • Journal of Synchrotron Radiation, May 2016, International Union of Crystallography

    Eduard Prat, Dr Marco Calvi

  57. Preliminary Magnetic Design of a Superconducting Dipole for Future Compact Scanning Gantries for Proton Therapy

    Article • IEEE Transactions on Applied Superconductivity, April 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  58. Undulators for the PSI Light Sources

    Article • Synchrotron Radiation News, May 2015, Taylor & Francis

    Dr Marco Calvi

  59. The Materials Science beamline upgrade at the Swiss Light Source

    Article • Journal of Synchrotron Radiation, July 2013, International Union of Crystallography

    Dr. Claudia Cancellieri, Dr Marco Calvi

  60. Commissioning results of the U14 cryogenic undulator at SLS

    Article • Journal of Physics Conference Series, March 2013, Institute of Physics Publishing

    Dr Marco Calvi

  61. Operation experience of the UE44 fixed gap APPLE II at SLS

    Article • Journal of Physics Conference Series, March 2013, Institute of Physics Publishing

    Dr Marco Calvi

  62. Integrated analysis of quench propagation in a system of magnetically coupled superconducting coils

    Article • Cryogenics, January 2013, Elsevier

    Dr Marco Calvi

  63. X-Treme beamline at SLS: X-ray magnetic circular and linear dichroism at high field and low temperature

    Article • Journal of Synchrotron Radiation, July 2012, International Union of Crystallography

    Dr Marco Calvi

  64. Test Results of a 100 kA NbTi CICC

    Article • IEEE Transactions on Applied Superconductivity, June 2012, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  65. Vibrating Wire Technique and Phase Lock Loop for Finding the Magnetic Axis of Quadrupoles

    Article • IEEE Transactions on Applied Superconductivity, June 2012, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  66. Design Study of a 3.5 T Superconducting Sector Magnet in a 450 MeV/nucl Booster Cyclotron for Carbon Ion Therapy

    Article • IEEE Transactions on Applied Superconductivity, June 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  67. Quench Analysis of a High-Current Forced-Flow HTS Conductor Model for Fusion Magnets

    Article • IEEE Transactions on Applied Superconductivity, June 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  68. Helium flow and temperatures in a heated sample of a final ITER TF cable-in-conduit conductor

    Article • Journal of Physics Conference Series, June 2010, Institute of Physics Publishing

    Dr Marco Calvi

  69. Analysis of the EDIPO Temperature Margin During Current Ramp-Up

    Article • IEEE Transactions on Applied Superconductivity, June 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  70. Design Proposal for the ITER Feeder Busbars

    Article • IEEE Transactions on Applied Superconductivity, June 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  71. Interstrand Resistance and Contact Resistance Distribution on Terminations of ITER Short Samples

    Article • IEEE Transactions on Applied Superconductivity, June 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  72. Status Report of the SULTAN Test Facility

    Article • IEEE Transactions on Applied Superconductivity, June 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  73. A parametric AC loss model of the ITER coils for control optimization

    Article • Cryogenics, March 2010, Elsevier

    Dr Marco Calvi

  74. Helium Flow and Temperature Distribution in a Heated Dual-Channel CICC Sample for ITER

    Article • IEEE Transactions on Applied Superconductivity, June 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  75. Interstrand Resistance and Current Redistribution in a Cable-In-Conduit Conductor (CICC) Termination

    Article • IEEE Transactions on Applied Superconductivity, June 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  76. Methods, Accuracy and Reliability of ITER Conductor Tests in SULTAN

    Article • IEEE Transactions on Applied Superconductivity, June 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  77. Qualification tests and facilities for the ITER superconductors

    Article • Nuclear Fusion, May 2009, Institute of Physics Publishing

    Dr Marco Calvi

  78. Inter-Strand Resistance in the Termination of ITER Conductors

    Article • IEEE Transactions on Applied Superconductivity, June 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  79. Preparatory Work to Host the EDIPO Test Facility at CRPP

    Article • IEEE Transactions on Applied Superconductivity, June 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  80. Quench Analysis of the European High Field Superconducting Dipole Magnet EDIPO

    Article • IEEE Transactions on Applied Superconductivity, June 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  81. Stability Analysis of the LHC Cables for Transient Heat Depositions

    Article • IEEE Transactions on Applied Superconductivity, June 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  82. Test Results of Two European ITER TF Conductor Samples in SULTAN

    Article • IEEE Transactions on Applied Superconductivity, June 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  83. Winding Configurations Studies for the EFDA Dipole Test Facility EDIPO

    Article • IEEE Transactions on Applied Superconductivity, June 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  84. Simulation of the flow-reversal effect in dual-channel CICC for ITER

    Article • Cryogenics, November 2007, Elsevier

    Dr Marco Calvi

  85. Quench propagation and stability analysis of Rutherford resistive core cables

    Article • Cryogenics, July 2006, Elsevier

    Dr Marco Calvi

  86. Stability analysis of the LHC cables

    Article • Cryogenics, July 2006, Elsevier

    Dr Marco Calvi

  87. Analytical Model of Thermoelectrical Behavior in Superconducting Resistive Core Cables

    Article • IEEE Transactions on Applied Superconductivity, June 2006, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  88. Focusing Strength Measurements of the Main Quadrupoles for the LHC

    Article • IEEE Transactions on Applied Superconductivity, June 2006, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  89. Impact of the First Powering Cycles on the LHC Superconducting Dipole Coil Geometry

    Article • IEEE Transactions on Applied Superconductivity, June 2006, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  90. On the Use of Wavelet Transform for Quench Precursors Characterization in the LHC Superconducting Dipole Magnets

    Article • IEEE Transactions on Applied Superconductivity, June 2006, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  91. Steering the Field Quality in the Production of the Main Quadrupoles of the Large Hadron Collider

    Article • IEEE Transactions on Applied Superconductivity, June 2006, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  92. Axis Measurements, Field Quality and Quench Performance of the First LHC Short Straight Sections

    Article • IEEE Transactions on Applied Superconductivity, June 2005, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  93. Improved Quench Localization and Quench Propagation Velocity Measurements in the LHC Superconducting Dipole Magnets

    Article • IEEE Transactions on Applied Superconductivity, June 2005, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  94. Fabrication and Performance of<tex>$hboxNb_3hboxSn$</tex>Rutherford-Type Cable With Cu Added as a Separate Component

    Article • IEEE Transactions on Applied Superconductivity, June 2004, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  95. Statistical Analysis of Conductor Motion in LHC Superconducting Dipole Magnets

    Article • IEEE Transactions on Applied Superconductivity, June 2004, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Marco Calvi

  96. Quench propagation and heating in the superconducting 600 A auxiliary busbars of the LHC

    Article • January 2002, American Institute of Physics

    Dr Marco Calvi

  97. Quench propagation in the superconducting 6 kA flexible busbars of the LHC

    Article • January 2002, American Institute of Physics

    Dr Marco Calvi