A Double Sided LGAD-Based Detector Providing Timing, Position, and Track Angle Information

Technical Report · Tue Jan 04 04:00:00 EST 2022

DOI:https://doi.org/10.2172/1841398· OSTI ID:1841398

Lipton, Ronald J. ^[1]

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1. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)

We describe a detector concept which combines small pixels enabled by 3D sensor-electronics integration with gain produced by a Low Gain Avalanche Diode (LGAD) layer. The detector is double-sided, with electrons collected by the cathode, which provides timing information, and an anode with small pixels to provide position and angle information. The cathode can be coarse grained, providing timing with fewer fast amplifiers to limit power consumption. The anode layer benefits from the gain of the LGAD, with larger signals that also limit the power needed. Position can be reconstructed by measuring the pattern of total charge deposited on the anode. Angle and depth of charge deposit can be measured by the shapes of the anode pulses. We describe a possible assembly technology based on 3D integration.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1841398
• Report Number(s): FERMILAB-FN-1102-E; oai:inspirehep.net:2010269
• Country of Publication: United States
• Language: English

Related Subjects

3D Integration
43 PARTICLE ACCELERATORS
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Induced Currents
Pixel Detector
Silicon Tracking