Research Interests

Development of high-resolution superconducting x-ray and gamma-ray spectrometers and their application in material science, nuclear physics, astronomy, and national security.

Ph.D., Applied Physics, Yale University, 1997

M.S., Physics, University of Colorado, 1991

B.S., Physics, University of Tübingen, 1989

• “Accurate Measurement of the First Excited Nuclear State in U-235”, F. Ponce, E. Swanberg, J. Burke, R. Henderson, S. Friedrich”, Phys. Rev. C 97, 054310 (2018)
• “Reproducibility and Calibration of MMC-Based High-Resolution Gamma Detectors”, C. R. Bates, C. Pies, S. Kempf, D. Hengstler, A. Fleischmann, L. Gastaldo, C. Enss, S. Friedrich, Appl. Phys. Lett. 109, 023513 (2016)
• “112-Pixel Arrays of High-Efficiency STJ X-Ray Detectors”, S. Friedrich, J. Harris, W.K. Warburton, M. H. Carpenter, J.A. Hall, R. Cantor, J. Low Temp. Phys. 176, 553-559 (2014)
• “Direct observation of nitrogen location in molecular beam epitaxy grown nitrogen-doped ZnO”, P. Fons, H. Tampo, A. V. Kolobov, M. Ohkubo, S. Niki, J. Tominaga, R. Carboni, F. Boscherini, S. Friedrich, Phys. Rev. Lett. 96, 045504 (2006)

• R&D100 Award for Superconducting Tunnel Junction X-ray Spectrometer, 2014
• R&D100 Award for Superconducting Gamma and Fast-neutron Detectors, 2006