Cosmic Polarimetry for Soft and Hard X-rays

Dr. Takao Kitaguchi (host Krawczynski), RIKEN
January 25, 2018 at 1:00 pm
241 Compton
Event Description 

We present the detection principle and experimental demonstration of the X-ray polarimeter based on the photoelectric effect. Recent progress in micro-pattern gas detectors enables us to track electrons with energies down to 1 keV. The angular distribution of photoelectrons is sensitive to the electric field vector (or polarization direction) of incident photons. In addition, We show a novel method with machine learning to extract polarization information from photoelectron track images.

Coffee: 12:45 pm, 241 Compton