Postdoctoral - Mechanical Engineering, Robotics

School/Institution:CEA TECH, France, Grenoble

Discipline: Mechanical Engineering, Robotics

Employment Type:Full-time

Posted:2020-05-07

Contact Person:If you wish to apply for this position, please specify that you saw it on AKATECH.tech

PhD position - Development of a mobile multimodal imager for radiological characterization of complex environments

Job: SL-DRT-20-0744

Research Field: Factory of the future incl. Robotics and non destructive testing

Abstract

The mitigation of accidental situations such as Chernobyl or Fukushima requires the access to a radiological characterization of environment. Gamma imaging systems provide a solution of interest to address this requirement by allowing the remote visualization of irradiating hot spots through the superimposition of a gamma image onto a visible picture.

CEA List is a first rank international actor in the development of gamma cameras for nuclear industry and Homeland Security applications (CARTOGAM, GAMPIX/iPIX and Nanopix gamma cameras). However, may they be based on coded aperture techniques or Compton imaging methods, current imaging systems are required to stay still during the whole acquisition step (from several seconds to minutes), in order to gather sufficient counting statistics for hot spot reconstruction.

On the other hand, this reconstruction is achieved through the projection on a two-dimensional space, which makes results uneasy to interpret in case of a complexly crowded and degraded environment. The research project hereby proposed aims at addressing those limitations by allowing the localization of hot spots with a moving imager and implementing the reconstruction of superimposed images in a three-dimensional environment.

To this aim, several research paths are proposed and could be coupled into a multimodal mobile imager for the characterization of radiologically degraded areas : the transposition of Compton imaging methods to a mobile referential, allowing the reconstruction by a moving system; the adaptation of tomography reconstruction algorithms for the localization of hot spots with their depth; and the construction of three-dimensional visible images via stereoscopy methods and images structure analysis for reconstructing the environment.

Location

Département Métrologie Instrumentation et Information (LIST)

Laboratoire Capteurs et Architectures Electroniques

Saclay

Contact

SCHOEPFF Vincent

CEA

DRT / List / DM2I / SCI / LCAE

Center CEA Paris-SaclayDRT / LIST / DM2I / SCI / LCAEBât. 516 - PC 72

Phone number: 0169083950

Email: vincent.schoepff@cea.fr

Find out More

http://www-list.cea.fr/index.php/recherche-technologique/programmes-de-recherche/manufacturing-avance/instrumentation

Job Details

Title: PhD position - Development of a mobile multimodal imager for radiological characterization of complex environments

Employer: CEA Tech

Job types: PhD

Fields: Algorithms, Human-computer Interaction, Instrumentation Engineering, Robotics, Electrical Engineering, Mechanical Engineering, Mechanics, Machine Vision

Contact Person: If you wish to apply for this position, please specify that you saw it on AKATECH.tech

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