Machiel Kolstein - First results with the prototype VIP PET scanner

Wednesday 7 Mar 2018, 13:00 → 14:00 Europe/Madrid

Seminar (IFAE)

Marc Manera (IFAE), Michael Leyton (IFAE), Stefano Terzo (IFAE)

This talk is meant as a first update on the construction and data-taking with the VIP PET prototype scanner. The VIP project intends to prove the advantage of using finely segmented CdTe semiconductor material for a PET scanner. The VIP-PET scanner is built using a dedicated ASIC that was designed at IFAE. 10 wafers were tested by the VIP team using the CNM probe station. BiSn solder bumps (250um in diameter) were deposited on each VIP chip using IFAE´s Pactech machine. The best performing VIP chips were bonded to pixelated CdTe using the IFAE FC-150 flip machine. All the hardware/software drivers (electronics/DAQ/GUI) were developed by the VIP-IFAE team. Since the end of 2016 we have started to work with the VIP PET prototype. Once we had a stable set-up with 5 modules, we could take our first data with a radioactive source. These data eventually was used for an article published in Physics in Medicine & Biology. Next, over the course of 2017, we managed to get all 18 modules operational to measure the energy resolution of PET coincidences and Compton scattering coincidences for the entire device and take our first preliminary images. The talk will end with an outlook on our future plans.