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20 April 2024

» arxiv » 1812.0788

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Module concept and thermo-mechanical studies of the silicon-based TT-PET small-animal scanner
Didier Ferrere ; Yves Bandi ; Frank Cadoux ; Dean Forshaw ; Daiki Hayakawa ; Giuseppe Iacobucci ; Sebastien Michal ; Antonio Miucci ; Marzio Nessi ; Lorenzo Paolozzi ; Emanuele Ripiccini ; Pierpaolo Valerio ; Michele Weber ;
Date:	29 Nov 2018
Abstract:	The construction of the small-animal TOF PET scanner proposed for the TT-PET project poses several technical challenges, with the need to address tight mechanical, thermal and electrical constraints. The scanner has a length of 5 cm, an inner diameter of 3.9 cm and an outer diameter of 8.4 cm. Each of the 16 towers constituting the scanner is made of a stack of 60 monolithic silicon detectors with excellent time resolution, specifically developed for this project. The interconnections necessary for the read-out and power distribution of the chips are obtained by a stacked-die wire bonding technique. The cooling system uses micro-channel ceramic cooling blocks to extract a power of 300 W from the scanner volume. A technique to assemble the TT-PET scanner was developed and tested. The results from the measurements on a thermo-mechanical mock-up are presented and compared with FEA simulations.
Source:	arXiv, 1812.0788
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