Group Leader: David Gascón Fora http://icc.ub.edu/people/30
The experimental particle physics (EHEP) research team in the Universitat de Barcelona has contributed to heavy flavour experiments during the last 15 years. During this time, it has participated in the HERA-B experiment at DESY (Hamburg, Germany), the BaBar experiment at SLAC (Stanford, EE. UU.) and, currently, the team is member of the LHCb collaboration at CERN (Geneva, Switzerland). Besides its contributions to the physics program of these experiments, the group has developed a significant expertise in the design, manufacturing and operation of custom electronics and microelectronics for the readout of photo-detectors. The technology developed for those research projects is at the forefront of today’s available solutions.
It is important to remark, the creation in 2013 of the SiUB (http://siub.ub.edu) instrumentation service in the Physics Faculty of the University of Barcelona (UB), for which Dr. David Gascón is the technical director. The mission of this instrumentation service is to transfer technology developed through the research projects to the society.
The technology developed for the particle physics experiments has been proved to be disruptive for Positron Emission Tomography (PET) in the medical imaging field. Current PET technology is based on scintillating crystals. However, there is an intrinsic limit in the time resolution that can be achieved by scintillation in crystals. Several R&D projects are studying prompt light emission mechanisms to overcome this limitation, among them we have identified two promising options: Cherenkov light emission in crystals and fast scintillation (2.2 ns decay time) and Cherenkov emission in Liquid Xenon. New advances are required in photo-detector and electronics in order to exploit prompt light emission, aiming for an overall Single Photon Time Resolution (SPTR) in the order of few tens of pico-seconds (ps) and enhanced UV sensitivity.
Job position description:
The candidate will join the group as a fellow researcher in the Integrated Circuit (IC) design field. This position will focus on developing a module based on analogue light sensors. Sensors, front-end electronics, digitization and signal processing will be developed to produce a scalable module to overcome the limitations of the current PET technology. The module will be also applied to future high luminosity colliders, where ps time resolution is required for time tagging of particle interactions.
She/he will participate in all phases of IC design flow (design, simulation, layout and verification) and characterization of the modules in lab test benches, particle detectors and hospitals. The candidate will work in a multidisciplinary environment involving also scientists and international researchers. In particular, the candidate will work in the framework of a collaboration established between CERN and ICCUB to develop a new generation of ultra-fast systems based on a 65 nm CMOS technology. New vertical 3D integration technologies will be also studied. The ultimate goal would be to develop a digital silicon photomultiplier based on Single Photon Avalanche Detectors with a SPTR as good as 30 ps.
The requisites of the candidate are knowledge and experience in:
- Engineering degree or similar (preferably Electronics Engineer)
- IC design (schematic, simulation, layout and verification)
- Temporal stays at CERN will be required to interact with other engineers participating in this project
If would also be desirable to have knowledge in:
IC testing, PCB design and layout and SW developmentData analysis for IC verification and characterizationMedical imagingRadiation detectors