Prof. Dr. Mike Seidel

1984-89
Study of Nuclear Physics at the Technical University of Dresden, Germany

12/89-12/95
engineering physicist at DESY/Hamburg, working on the 920GeV proton storage ring: quench protection for superconducting magnets, transmission line characteristics of magnet chain, commissioning with beam
later, dissertation in accelerator physics at DESY (University of Hamburg), Advisor: Prof.E.Lohrmann, topics: proton beam collimation and background minimization at the HERA experiments, particle diffusion and halo generation processes
later, research associate at DESY, topics: beam cleaning and detector background control at HERA, Linear Collider developments, design of beam dump / exit window for the TESLA test facility

1/96-12/97
research associate at SLAC (Stanford Linear Accelerator Center), Accelerator Research Department, Prof.R.Siemann: wakefield instrumentation of RF structures, wakefield probing using adjustable pilot and probe bunches, W-band [mm-wave] accelerating structures

1/98-6/06
return to DESY/Hamburg, topics: luminosity upgrade of HERA, beam optics and geometry of the new interaction region incl. synchrotron radiation backgrounds and absorbers, project management
later, head of the vacuum group for all warm vacuum systems at DESY (~10km of system), topics: commissioning of HERA II, detector background problems, beam based alignment in interaction region, components for FLASH facility at DESY, design and construction of the vacuum system for PETRA III, design of the warm vacuum system for the XFEL project

7/06-12/19
Paul Scherrer Institut, department head Accelerator Operation and Development (ABE), responsible for operation of PSI accelerators and focusing on the high intensity proton accelerator (HIPA) for muon and neutron beam generation, in parallel active for the Center for Proton Therapy, covering technical aspects of proton therapy, gantry development project

since 1/20
Paul Scherrer Institut, Division Head Large Research Facilities and EPFL Professor for Accelerator Physics, Laboratory LPAP

High Intensity Hadron Accelerators and Cyclotrons

• high intensity cyclotrons
  • M.Seidel et al, Production of a 1.3 MW Proton Beam at PSI, Proc. IPAC 2010, Kyoto
  • Y.Bi et al, Towards quantitative simulations of high power proton cyclotrons, Phys. Rev. ST Accel. Beams 14, 054402, 2011
  • K.Clausen and M.Seidel, PSI’s High Intensity Proton Accelerator - A Versatile Facility Celebrates its 40th Anniversary, SPG Mitteilungen (2014)
  • L. Calabretta and M. Seidel, 50 Years of Cyclotron Development, IEEE Transactions on Nuclear Science, 63.2:965 – 991(2016)
• energy efficiency of accelerators
  • M.Seidel et al, Improving the Energy Efficiency of Accelerator Facilities, Proc IPAC'2015, Richmond USA, 2015
  • M.Seidel (editor), The Energy Efficiency of Proton Driver Accelerators, workshop compilation, 2016
  • A.Kovach et al, Energy efficiency and saving potential analysis of the high intensity proton accelerator HIPA at PSI, Journal of Physics: Conference Series, 874, 1, 012058 (2017)
  • V.P.Yakovlev et al, The Energy Efficiency of High Intensity Proton Driver Concepts, Proc IPAC'2017, Copenhagen, 2017
  • M.Seidel, Technologies for sustainable Accelerators, I.FAST Industry Session, CERN, 2022
  • M.Seidel, Towards Efficient Particle Accelerator - a Review, Proc. IPAC'22, Bangkok, 2022
• accelerators and requirements for ADS
  • M.Seidel, Accelerators for ADS, talk at workshop on ADS, CERN, 2014

Medical Accelerators

• operation of medical accelerators
  • M.Schippers and M.Seidel, Operational and design aspects of accelerators for medical applications, Phys. Rev. ST Accel. Beams 18, 034801
• superconducting gantry
  • A.Gerbershagen et al, A novel beam optics concept in a particle therapy gantry utilizing the advantages of superconducting magnets, Z. Med. Phys. 26, 224–237 (2016)
  • V.Talanov et al, Neutron doses due to beam losses in a novel concept of a proton therapy gantry, Journal of Physics: Conference Series, 874, 1, 012107 (2017)

• passing synchrotron radiation through the interaction region with minimal losses
  • M.Seidel, Approximate Integrals of Synchrotron Radiation Spectra, DESY-HERA 03-26, 2003
• vacuum system of Petra III
  • M.Seidel et al, The Vacuum System of PETRA-III, Proc. IPAC'15, Knoxville USA (2015)
  • R.Böspflug et al, Vacuum system design of the third generation synchrotron radiation source PETRA III, Journal of Physics: Conf. Series, 100 092012 (2008)
• microwave undulator
  • M.Seidel, Parameter evaluation for microwave undulator schemes, DESY 2001

• structure design
  • M.Seidel et al, Microwave Analysis of the Damped Detuned Accelerator Structure, Proc LINAC'96, Geneva, 1996
• absolute beam positioning in a high gradient X-band structure
  • M.Seidel, C.Adolphsen et al, Absolute beam position measurement in an accelerator structure, NIM A 404(2):231-236, 1998
  • M.Seidel, C.Adolphsen, Precision beam to structure alignment in linear accelerators, AIP Conference Proceedings 472, 713 (1999)
• W-band accelerator structures
  • M.Hill et al, High-Gradient Millimeter-Wave Accelerator on a Planar Dielectric Substrate, PRL 87(9):094801-1, 2001
  • M.Hill et al, High-power squeeze-type phase shifter at W-band, IEEE Transactions on Microwave Theory and Techniques, vol. 50, no. 5, pp. 1437-1441, 2002
• beam material interaction
  • M.Seidel, An Exit Window for the TESLA Test Facility, DESY, 1995
  • I.Baishev et al, Design Study of a Beam Dump for the TESLA and S-Band Test Facilities at DESY, DESY, 1995
• orbit jitter analysis
  • P.Castro and M.Seidel, Orbit Analysis at the TTF Linac Using Model Independent Methods, DESY, 2002

• quench protection, powering and electric properties of superconducting magnet circuits
  • R.Bacher et al, Transmission Line Characteristics of the s.c. Dipole and Quadrupole String, HEACC, Hamburg/DE, 1992
• proton beam collimation, beam halo diffusion
  • M.Seidel, K.H.Mess, Collimators as Diagnostic Tools in the Proton Machine of HERA, NIM A 351 (1994) 279-285
  • M.Seidel, The proton collimation system of HERA, DESY, PhD Thesis, 1994
• design of an ep interaction region
  • M.Seidel, Layout of the upgraded interaction regions of HERA, DESY, 2000
  • F.Brinker et al, Beam based alignment of combined funtion magnets in the upgraded HERA interaction regions, Proceedings of EPAC 2002, 365, Paris, France

• Particle Accelerators, chapter in Vacuumelectronic Devices, Eichmeier and Thumm: M.Seidel and K.Zapfe, Particle Accelerators, Springer (2008)

• IPAC'2022, Bangkok/TH: Towards Efficient Particle Accelerators - a Review
• Cyclotrons'2016, Zürich/CH: Cyclotrons and Superconducting Linacs as High Intensity Driver Accelerators
• IPAC'2015, Richmond/US: Improving the Energy Efficiency of Accelerator Facilities
• DESY Seminar 2014, Hamburg/DE: Cyclotrons for Research and Medical Application
• Cyclotrons'2013, Vancouver/CA: Conference Summary
• HB'2012, Beijing/CN, High Intensity Operation and Control of Beam Losses in a Cyclotron based Accelerator
• IPAC'2010, Kyoto/JP: Production of a 1.3 MW Proton Beam at PSI
• IR Workshop 2004, Beijing/CN: Background Issues in the new HERA Interaction Regions
• EPAC'2002, Paris/Fr: Measurement of Resistivity Dominated Collimator Wakefield Kicks at the SLC
• PAC'1997, Vancouver/CA: Studies of Beam Indiced Dipole Mode Signals in the SLC

• EPFL Master Course, Introduction to Particle Accelerators, fall semester, from 2020
• specialized CERN Accelerator School High Intensity Hadron Accelerators, 2011, Bilbao: Cyclotrons for high Intensity Beams Publication
• general CERN Accelerator School, 2014, Prague/Czech Republic, course on cyclotrons
• Grundlagen Teilchenbeschleuniger, für Physikstudenten zum Besuch des PSI, 2015
• general CERN Accelerator School, 2016, Budapest/Hungaria, course on cyclotrons 2016-Part I: Video, 2016-Part II: Video, 2014
• specialized CERN Accelerator School on Beam Injection, Extraction and Transfer, 2017, Erice/Sicily: Injection and Extraction in Cyclotrons
• school on Beam Dynamics and Technologies for Future Colliders, 2018, Zürich/Switzerland: Collimators and Dumps
• general CERN Accelerator School, 2018, Constanta/Rumania, course on cyclotrons I, II
• general CERN Accelerator School, 2019, Vysoke-Tatry/Slowakia, course on cyclotrons I, II; course on accelerator vacuum
• general CERN Accelerator School, 2021, Chavanne de Bogis/Switzerland, course on cyclotrons I, II; course on accelerator vacuum

• European Physical Society – Accelerator Group, Chair, 2017-20
• IPAC’2017, Chair of the scientific program committee, 2017
• ICFA Panel on Sustainable Accelerators and Colliders, Chair since 2016
• Swiss Vacuum Society, Member of the Executive Board, since 2009
• International Conference on Cyclotrons and their Applications, Chair of IOC, 2013-16

• Reviews of the LHC collimation system, Chair, 2004, 2009, 2011, 2013, 2019
• CERN Machine Advisory Committee (CMAC), Member 2016-19
• China Spallation Neutron Source, Technical Advisory Committee, Member since 2009, chair since 2022
• Review of an hollow electron lens collimator, committee member, 2016

• EUCARD-2, Energy Efficient Accelerators, WP Leader, 2013-17
• ARIES, Efficient Energy Management (EEM), WP Leader, 2017-21
• I.FAST, Sustainable Concepts (SCAT), WP Leader, 2021-25