Dr. Richard Bradley photo
21-cm Cosmology and Radio Radiometer Design
National Radio Astronomy Observatory

University of Virginia
Department of Astronomy
1180 Boxwood Estate Road
Charlottesville, VA 22903-4602

Development of advanced radiometer instruments for specialized radio astronomy experiments. Contributions include the antenna, front-end, and receiver for the Precision Array for Probing the Epoch of Reionization (PAPER), in situ antenna beam measurement systems using LEO satellite downlink signals, narrow and broadband feed systems for the Hydrogen Epoch of Reionization Array (HERA), cryogenic LNAs and broadband front-end systems for Baryon Acoustic Oscillation (BAO) experiments and the Axion Dark Matter eXperiment (ADMX), and system development for the Green Bank Solar Radio Burst Spectrometer (GB/SRBS).