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arXiv · 0901.2530

Design of a 10 picosecond Time of Flight Detector using Avalanche Photodiodes

Sebastian White·Mickey Chiu·Milind Diwan·Grigor Atoian·Vladimir Issakov
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Abstract

We describe a detector for measuring the time of flight of forward protons at the Large Hadron Collider (LHC) up to and beyond the full instantaneous design luminosity of 1034 cm-2 s-1. Our design is based on deep diffused, high gain avalanche photodiodes (APDs) which give a signal of ~6000 e when traversed by 7 Teravolt protons. We observe pulse risetimes of 650 psec and a pulse width of 5 nsec and calculate a time resolution of ~10 psec and a maximum count rate of >100 Mhz.

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Sebastian White, Mickey Chiu, Milind Diwan, Grigor Atoian, Vladimir Issakov. 2009-01-16. Design of a 10 picosecond Time of Flight Detector using Avalanche Photodiodes. https://arxiv.org/abs/0901.2530

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