Panoramic SETI: Overall focal plane electronics and timing and network protocols
Wei Liu, Dan Werthimer, Ryan Lee, Franklin Antonio, Michael Aronson,, Aaron Brown, Frank Drake, Andrew Howard, Paul Horowitz, Jerome Maire, Rick, Raffanti, Remington Stone, Richard Treffers, Shelley A. Wright

TL;DR
The paper details the design and implementation of the focal-plane electronics, timing, and network protocols for the PANOSETI experiment, enabling all-sky, continuous search for fast optical transients.
Contribution
It introduces a novel electronics and timing system for PANOSETI's wide-field, high-speed transient detection across multiple observatory sites.
Findings
Successful development of SiPM-based photon detectors
Implementation of precise timing with White Rabbit protocol
Capability to detect nanosecond to millisecond transients
Abstract
The PANOSETI experiment is an all-sky, all-the-time visible search for nanosecond to millisecond time-scale transients. The experiment will deploy observatory domes at several sites, each dome containing ~45 telescopes and covering ~4,440 square degrees. Here we describe the focal-plane electronics for the visible wavelength telescopes, each of which contains a Mother Board and four Quadrant Boards. On each quadrant board, 256 silicon photomultiplier (SiPM) photon detectors are arranged to measure pulse heights to search for nanosecond time-scale pulses. To simultaneously examine pulse widths over a large range of time scales (nanoseconds to milliseconds), the instrument implements both a Continuous Imaging Mode (CI-Mode) and a Pulse Height Mode (PH-Mode). Precise timing is implemented in the gateware with the White Rabbit protocol.
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