Feb 21 – 25, 2022
Vienna University of Technology
Europe/Vienna timezone

High resolution photon and neutron imaging options with MCP/Timepix event counting detectors

Not scheduled
20m
Vienna University of Technology

Vienna University of Technology

Gusshausstraße 27-29, 1040 Wien
Recorded Presentation Photon Detectors

Speaker

Dr Anton Tremsin (University of California at Berkeley)

Description

Event counting detectors with Microchannels Plates coupled to Timepix readouts are considered here for specific UV, soft X-ray and neutron imaging applications where the detection of individual particles enables imaging with high spatial resolution as well as imaging of dynamic processes. The possibility to detect position and time of arrival for each incoming particle enables time-resolved imaging as well as the improvement of spatial resolution well below the size of readout pixel (through the event cetroiding). Our results demonstrate that the spatial resolution of these detectors is currently limited by the size of Microchannel pore spacing (~6 um for photon detection, ~12 um for neutrons) over the active area of 28x28 mm^2. The possibility to perform time-resolved studies of periodic processes, where various phases are imaged simultaneously in one experiment is also demonstrated with imaging frames at a microsecond level, while time tagging of individual events is possible to ns scale, and is expected to be improved to sub-ns with Timepix4 readouts. Time-resolved results from synchrotron-based experiments as well as cluster analysis with scintillator-based detectors will also be demonstrated in this talk.

Primary author

Dr Anton Tremsin (University of California at Berkeley)

Co-authors

Dr Adrian Losko (Forschungs-Neutronenquelle Heinz Maier-Leibnitz) Dr Hassina Bilheux (Oak Ridge National Laboratory) Dr Travis Curtis (University of California at Berkeley) Dr John Vallerga (University of California at Berkeley)

Presentation materials