Title: Ultra-Fast Silicon Detectors

Speaker: Prof.Hartmut Sadrozinski(University of California Santa Cruz)

Moderator: Prof.LOU Xinchou

Time:10:00. Sept.25

Place:Room C305, IHEP Main Building

Abstract and about the speaker:

Prof.Hartmut F.-W.Sadrozinski（Santa Cruz Institute for Particle Physics SCIPP，University of California Santa Cruz）

His work has been centered on developing instruments optimized for locating charged particles with high precision. Over the course of his career he has improved tracking measurements of charged particles at very high rate in High Energy Particle Physics (HEP) and then translated the technology to Astrophysics and Medical Physics.

The major paradigm changing contribution was the introduction of fast, low-power, radiation resistant readout electronics for silicon strip sensors, first at the electron-proton collider HERA at the DESY laboratory in Germany, then at the LHC where in 2012 we discovered the Higgs Boson, the last remaining piece of the Standard Model of Elementary Particle Physics.

For the extension of the CERN particle physics program in the High-Luminosity LHC, he is developing novel radiation-hard and ultra-fast silicon sensors (UFSD).

He successfully transferred the large-scale silicon strip detector technology from accelerator based physics into space in the large-scale silicon tracker of the Fermi mission. The development and testing of sensors and electronics which can survive the harsh radiation environment in space was a major success.

Starting in 2001, he worked on technology transfer of large-scale HEP instrumentation into medical research and introduced the use of silicon strip sensors in Nanodosimetry and in Proton Computed Tomography. Their recently finished Phase II pCT head scanner funded by NIH is exceeding the expected data rate of 1 Million protons per second, and they are testing this new imaging modality in several hospitals.