Personal Information


  • 1972 Ph.D., Massachusetts Institute of Technology
  • 1968 M.S.(Physik Diplom), University of Hamburg (Germany)


  • 1982-present Research Physicist and Adjunct Professor, SCIPP, UC Santa Cruz
  • 1980-1982 Assoc. Research Physicist, Santa Cruz Inst. for Particle Physics, UC Santa Cruz
  • 1977-1978 Consultant, New Jersey Environmental Protection Agency
  • 1972-1980 Research Assoc., Instructor, Asst. Professor of Physics, Princeton University


  • Senior Member, Institute of Electrical and Electronic Engineers (IEEE), elected in 2002


  • Electron-Positron Annihilation Physics at SLAC (Crystal Ball, Mark 3, Mark 2)
  • Diffraction in ep scattering at HERA (ZEUS)
  • Higgs detection at the LHC (ATLAS)
  • Detection of transient cosmic gamma ray signals with GLAST
  • Large-scale application of silicon detectors in collider physics and astrophysics
  • Front-end electronics for silicon microstrip detectors and drift chambers
  • Radiation hardness of solid state detectors and front-end electronics
  • Radiation effects in Life Sciences


  • Coordinator, SCIPP Research Experience for Teacher Program
  • Coordinator, SCIPP K-12 Visiting Program ("Tesla Coil")


  • Member, International Advisory Committee for the Xth Vienna Instrumentation Conference, Wien, Austria
  • 4th International Conference on Radiation Effects on Semiconductor Materials, Detectors and Devices, Florence, Italy
  • 8th Topical Seminar on Innovative Particle and Radiation Detectors, Siena, Italy
  • 5th International Conference on Large Scale Applications and Radiation Hardness of Semiconductor Detectors, Florence, Italy
  • International Symposium on Development and Application of Semiconductor Tracking Devices, Hiroshima, Japan
  • Contributor, Particle Data Group Review of Particle Physics (1993-2001)
  • Member, Directors Technical Review Committee Fermilab (2001-2003)
  • Member, Senior Scientist Advisory Committee of the GLAST-LAT Collaboration
  • Member, IEEE Nuclear Science Symposium/Medical Imaging Conference Program Committee (1991-2003)
  • Reviewer, NSF Small Business Innovation Research Program