Dr. Tomasch joined the department in 1988 as a postdoctoral fellow specializing in astrophysics research, conducted by flying particle physics experiments to the edge of space aboard high-altitude balloons. During the period of 1993-2000, the Michigan particle astrophysics group played a major role in NASA’s High Energy Antimatter Telescope (HEAT) experimental program. Dr. Tomasch took responsibility for the development and construction of the HEAT magnet spectrometer, which was used in conjunction with additional particle detector systems to study the spectra of antiprotons and positrons (anti-electrons) produced by particle physics interactions in the Galaxy. Since 2005, Dr. Tomasch has specialized in teaching introductory physics courses and in the development of new experiments for the introductory physics labs.
Dr. Tomasch won the Excellence in Education award from the College of Literature, Science, and the Arts (LSA) in 2009.
Measurement of the Cosmic-Ray Antiproton Abundance Ratio between 4 and 50 GeV, A.S. Beach, et al. (HEAT Collaboration), Phys. Rev. Lett. 87, 271101 (2001).
Cosmic Ray Positrons at High Energies: A New Measurement, (S.W. Barwick, J.J. Beatty, C.R. Bower, C. Chaput, S. Coutu, G. de Nolfo, D. Ficenec, J. Knapp, D.M. Lowder, S. McKee, D. Müller, J.A. Musser, S.L. Nutter, E. Schneider, S.P. Swordy, K.K. Tang, A.D. Tomasch, and E. Torbet), Phys. Rev. Lett., 75, 390 (1995).