3-10 August 2016
Chicago IL USA
US/Central timezone
There is a live webcast for this event.

The Inside-Out LAPPD with Read-Out Pads and its Use in ATLAS

Aug 8, 2016, 6:30 PM
Riverwalk A/B

Riverwalk A/B

Poster Detector: R&D and Performance Poster Session


Todd Seiss (University of Chicago (US))


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))


Andrey Elagin (University of Chicago) Bernhard Adams (Incom, Inc.) Eric Spieglan (University of Chicago) Evan Angelico (University of Chicago) henry frisch (university of chicago)

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