A monolithic ASIC demonstrator for the Thin Time-of-Flight PET scanner

Media type: Text; E-Article

Title: A monolithic ASIC demonstrator for the Thin Time-of-Flight PET scanner

Contributor: Valerio, P. [Author]; Cardarelli, R. [Author]; Iacobucci, G. [Author]; Paolozzi, L. [Author]; Ripiccini, E. [Author]; Hayakawa, D. [Author]; Bruno, S. [Author]; Caltabiano, A. [Author]; Kaynak, M. [Author]; Rücker, H. [Author]; Nessi, M. [Author]

imprint: London : Inst. of Physics, 2019

Issue: published Version

Language: English

DOI: https://doi.org/10.34657/6354; https://doi.org/10.1088/1748-0221/14/07/P07013

Keywords: Front-end electronics for detector readout ; SPECT ; Timing detectors ; coronary CT angiography (CTA) ; Analogue electronic circuits ; Gamma camera ; PET PET/CT

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Description: Time-of-flight measurement is an important advancement in PET scanners to improve image reconstruction with a lower delivered radiation dose. This article describes the monolithic ASIC for the TT-PET project, a novel idea for a high-precision PET scanner for small animals. The chip uses a SiGe Bi-CMOS process for timing measurements, integrating a fully-depleted pixel matrix with a low-power BJT-based front-end per channel, integrated on the same 100 µm thick die. The target timing resolution of the scanner is 30 ps RMS for electrons from the conversion of 511 keV photons. The system will include 1.6 million channels across almost 2000 different chips. A full-featured demonstrator chip with a 3×10 matrix of 500×500 µm2 pixels was fabricated to validate each block. Its design and experimental results are presented here. © 2019 CERN.

Access State: Open Access

Rights information: Attribution (CC BY)

A monolithic ASIC demonstrator for the Thin Time-of-Flight PET scanner - [published Version]

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