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Portail > Offres > Offre UMR5821-CHRVEL-083 - Post-doctorant sur le développement d'un système d'imagerie gamma-prompt par mesure de temps de vols (H/F)

Post-doctorant sur le développement d'un système d'imagerie gamma-prompt par mesure de temps de vols (M/W)

This offer is available in the following languages:
Français - Anglais

Date Limite Candidature : lundi 8 mars 2021

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General information

Reference : UMR5821-CHRVEL-083
Workplace : GRENOBLE
Date of publication : Monday, February 15, 2021
Type of Contract : FTC Scientist
Contract Period : 24 months
Expected date of employment : 1 May 2021
Proportion of work : Full time
Remuneration : 2648.79 euros gross monthly
Desired level of education : PhD
Experience required : 1 to 4 years


The successful candidate will take charge of the development, test and associated data analysis of a novel gamma-ray detector (TIARA) for real-time treatment monitoring in proton therapy.


- take charge of the TIARA detector development from pixel R&D to prototype assembly and test;
- participation to regular beam tests at the CAL proton therapy centre and other accelerator facilities;
- Data analysis and, ideally, Monte Carlo simulations;
- Writing of scientific papers and reports.


- PhD in physics/medical physics or equivalent, with a focus on particle detector development;
- Extended knowledge of radiation detection physics (gamma-rays, charged particles);
- Good knowledge of signal treatment and data acquisition techniques;
- Previous experience with Silicon Photomultipliers and/or scintillators;
- Data analysis with scientific software (python and/or ROOT);
- Experience in Monte-Carlo simulation (Geant4, GATE…) would be appreciated;
- Good written and oral English skills;
- Ability to work in a collaborative environment.

Work Context

The Grenoble Subatomic Physics and Cosmology laboratory (LPSC) (http://lpsc.in2p3.fr) is a mixed research unit associating the CNRS-IN2P3, the University of Grenoble Alpes (UGA) and the Grenoble INP school, for an average workforce of around 230 people.
The post-doctoral fellow will be attached to the Nuclear Physics and Medical Applications team and will report to Ms. Sara Marcatili.

In order to fully exploit the potential of hadrontherapy, we are currently developing a novel system for real-time control of particle therapy, based on TOF-resolved (Time-Of-Flight) Prompt Gamma (PG) imaging with 100 ps time resolution, namely TIARA (Tof Imaging ARrAy). The system will consist of a set of small size, ultra-fast pixel detectors (~1cm3) fixed on a rigid support surrounding the irradiated volume to achieve 3D coverage. Each pixel will consist in a monolithic Cherenkov radiator read-out by one or more Silicon Photomultipliers. TIARA will be read in time coincidence with a fast beam monitor. The TOF between the beam monitor and the TIARA pixels, together with TIARA pixels' positions constrain the PG vertex coordinates allowing a 3D reconstruction of the ion range in real-time and with a millimetric precision at pencil beam level.
This multidisciplinary project has recently been funded by the French National Institute of Health and Medical Research (INSERM) for a duration of three years. Physicists, engineers, mathematicians and clinical medical physicists from three French institutes (two CNRS labs, LPSC and CPPM and the CAL proton therapy centre) will contribute to the development and test of the TIARA detector and to the conception of a dedicated image reconstruction algorithm.

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