A 16 × 8 Digital-SiPM Array with Distributed Trigger Generator for Low SNR Particle Tracking

04 Pubblicazione in atti di convegno
Manuzzato E., Gioscio E., Mattei I., Mirabelli R., Patera V., Sarti A., Schiavi A., Sciubba A., Valle S. M., Traini G., Marafini M., Gasparini L., Perenzoni M., Zou Y., Parmesan L., Battistoni G., De Simoni M., Dong Y., Fischetti M.

This letter describes a 16 × 8-pixel array based on single-photon avalanche diodes (SPADs) optimized for the readout of a tracking detector based on plastic scintillation fibers targeting ultra-fast neutrons. Each pixel of 125 × 250 μm2 size contains 30 SPADs,an 80-ps 10-b time-to-digital converter (TDC),a 5-b intensity counter,a finite state machine (FSM) that manages the recording of data and a three-word-deep FIFO memory for parallel acquisition and readout,achieving 32.1% pixel fill factor. A combined,programmable current-based local,and global triggering mechanism correlates the photon detection activity in time to distinguish asynchronous charged particle trace events from background noise even with a poor SNR.

© Università degli Studi di Roma "La Sapienza" - Piazzale Aldo Moro 5, 00185 Roma