Speaker
Todd Seiss
(University of Chicago (US))
Description
Large Area Picosecond Photo-Detectors are very fast-timing photodetectors with a photosensitive area of 20 cm by 20 cm. Picosecond timing could be useful in the High Luminosity LHC for pileup mitigation. In particular, I examine their possible use for the ATLAS High-Granularity Timing Detector, which would be placed in front of the forward electromagnetic calorimeter in the Phase II upgrade. To mitigate the high event rates and provide position resolution, it is necessary to segment the large area. However, in the current design, this would require many vacuum-penetrating transmission lines. Using the inside-out design, in which the readout is capacitively coupled to the internal anode, I demonstrate coupled pads with no transmission lines. I measure the position and time resolution in this configuration and apply these results to ATLAS.
Primary author
Todd Seiss
(University of Chicago (US))
Co-authors
Andrey Elagin
(University of Chicago)
Bernhard Adams
(Incom, Inc.)
Eric Spieglan
(University of Chicago)
Evan Angelico
(University of Chicago)
henry frisch
(university of chicago)
