Michael W. Heiss

Scientist specializing in Material Analysis using Muonic Atoms at Paul Scherrer Institut PSI

Brugg, Aargau, Switzerland

About

With a robust background in atomic and particle physics and a penchant for scientific programming, my journey led me to PSI (Paul Scherrer Institut), where I work as a Research Scientist. I lead the MIXE (Muon-induced X-Ray Emission) instrument project, leveraging my expertise in precision spectroscopy and data analysis, skills honed during my prior research at ETH Zürich. Our team's mission aligns with PSI's culture of innovation, where I contribute to advancing the technique of elemental analysis using muonic atoms, a field I am deeply passionate about. Furthermore, the multidisciplinary nature of this applied research project allows me to gather intimate insights into other fields, such as battery research, archaeology, meteoritics, nuclear engineering, and many more.

Experience

  • PSI Paul Scherrer Institut (Villigen, Aargau, Switzerland)
    • Scientist
      Jan 2025 - Present · 1 yr 6 mos

      -) Muon-Induced X-ray Emission (MIXE) team lead -) GermanIum Array for Non-destructive Testing (GIANT) instrument-responsible -) Team Leader for PSI in the DRD1 R&D Collaboration at CERN

    • Postdoctoral Scientist
      Dec 2022 - Dec 2024 · 2 yrs 1 mo

      -) Serving as project and development team lead for Muon-Induced X-ray Emission (MIXE) activities -) Responsible for the GermanIum Array for Non-destructive Testing (GIANT) instrument -) Domain expert for Smart Analysis of MUonic x-Rays with Artificial Intelligence (SAMURAI) project -) Developing low energy muon tracker within CERN Gaseous Detector R&D Collaboration (DRD1) -) Conducted first successful proof-of-principle element-sensitive tomography experiments using MIXE technique -) Developing method to enhance MIXE sensitivity for light elements exploiting muon lifetime in atomic system -) Evaluating novel applications for MIXE in diverse fields, such as archeology, material science and nuclear engineering -) Supporting GIANT users from conception through data collection to detailed analysis of sample measurements

  • Small Business Owner at Heiss Technologies
    Sep 2022 - Present · 3 yrs 10 mos

    IT Consulting & Services for Small and Medium-sized businesses

  • ETH Zürich (7 yrs 1 mo)
    • Postdoctoral Research Scientist
      Apr 2021 - Aug 2022 · 1 yr 5 mos

      -) Led positronium precision spectroscopy research team -) Coordinated muonium deep UV pulsed laser spectroscopy efforts for Mu-MASS collaboration -) Developed afterpulse suppression system in PMTs to facilitate a novel positronium fine structure measurement -) Evaluated novel concept of detecting positronium in the 2S state via direct field-ionization -) Designed experiment to measure positronium fine structure to unprecendented precision

    • PhD Researcher
      Sep 2016 - Mar 2021 · 4 yrs 7 mos

      -) Conducted first measurement of the positronium 1S-2S interval using field-ionization of Rydberg states -) Developed extensive simulation and analysis projects for 1S-2S measurement in positronium -) Designed and built custom positronium detection systems for laser and microwave spectroscopy -) Developed and operated the laser systems used for precision spectroscopy of positronium -) Designed microwave excitation system for hyperfine structure measurements -) Developed and implemented significant upgrades to the slow pulsed positron beam-line facility

    • Graduate Teaching Assistant
      Aug 2015 - Aug 2016 · 1 yr 1 mo

      -) Conducted exercise classes for Introduction to Computer Science -) Supervised study center for Calculus I & II -) Managed departement-wide GIT/LaTeX exercise repository

  • IT-Engineer / Head of IT at Walter Heiss Ges.m.b.H
    Jun 2006 - Jun 2014 · 8 yrs 1 mo

    -) Planned and deployed major internal IT systems revision based on GNU/Linux architecture -) Implemented extensive automation of business-related processes, e.g. using Bash, Python and PHP -) Assisted in managing operative business and contributing to strategic planning

  • Undergraduate Research Assistant at Austrian Academy of Sciences
    Jul 2013 - Aug 2013 · 2 mos

    Summer student working at the AD/ASACUSA Collaboration for the Stefan Meyer Institute for Subatomic Physics -) Conducted magnetic field mapping of resonant microwave spin flip cavity using fluxgate sensors -) Identified and rectified several sources of unexpected systematics in magnetic field measurements