Bio
Doctor Riedel has a broad range of experience ranging from crystal growth and solid state theory of mesoscopic systems to the design of neutron sensitive detector systems. Dr. Riedel’s detector designs have formed the basis for most of the detector systems in use at the SNS. These include designs on LPSD gas detectors, Anger Camera detectors and Wavelength shifting fiber detectors. As the data acquisition group leader until 2013 his software designs were the operational user interface for all instruments during the first decade of operation at the SNS. During the last five years Dr. Riedel has been involved with the design and construction of the next generation scintillator and gas neutron detector systems. Over 70 Anger Camera detectors have been built and are producing world class results at the neutron scattering instruments MANDI, TOPAZ and HB3a. His work on these detector systems include high speed digital and analog design, Verilog firmware development on Xilinx FPGA systems, C and Python code development as well as Linux and Windows driver development. Recently Dr. Riedel has been involved with the development of new neutron sensitive scintillators, including LiSe, LiI, LiNI and CaF/LiF. One recent scintillator, low doped single crystal LiI, achieved the highest published light yield from neutrons capture in such a system. Dr. Riedel is also currently engaged with the development of SiPMT technology for use in the next generation scintillator detectors and has recently achieved the highest published resolution for a neutron sensitive Anger Camera. Dr. Riedel’s other activities include the collection and analysis of experimental data for improvements in gamma rejection and light yield, and the development of very high rate detectors including an MCP based TimePix3 detector for use at the second target station imaging beam line. Dr. Riedel is also engaged in several industry and academic based collaborations both domestically and internationally.