The Electronics, Detectors and Computing Division

COMPASS Micromegas detector The active areas of the detector is 40x40cm2. They allow a spatial resolution of 65µm and a time resolution of 10ns. The 12 detectors have been installed since summer 2002.

DEDIP numbers 77 engineers and researchers, 68 technicians, two post-doctoral students and two apprentices working on the development of detection and data processing systems for the department’s physics experiments.

The technical performance of instruments and computer systems has for a long time played a key role in the quality of physics experiments, which are becoming increasingly demanding in terms of performance (speed, precision), reliability and data flow. DEDIP has state-of-the-art expertise in several scientific and technical fields such as detector physics, analog front-end electronics, filtering and trigger electronics, real time computing and software engineering. These specialties are deployed not only as part of physics programs but also within a number of specific R&D programs. The applied use made of them by other units of the CEA and by industry demonstrates the service’s ability to provide innovative solutions in these fields.


DEDIP’s laboratories
DEDIP was set up in January 2002 in response to a need to bring complementary specialties such as the physics of detection and front-end electronics, or real-time computing and digital electronics, together in a single unit. This need has arisen as a result of the long-term evolution of scientific instrumentation, the complexity and performance requirements of which demand the creation of multidisciplinary teams cemented by a strong «system vision», whose activities range from architecture to integration and testing.
DEDIP’s laboratories are set up along this page, aiming to foster exchanges between technical specialties while maintaining the necessary links between «upstream» and «downstream» activities.


Last update : 03/16 2018 (521)

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Sédi research and development : The areas of research and development pursued by Sédi are evaluated by its scientific and technical advisory board, which meets annually. R&D programs cover electronics (USB-confi gurable test probe, STUC, for setting up test and capture sets using a PC, FPGA chip systems), microelectronics (switched capacitor matrix structures), IT (computing grids, multiple-scale transform methods, development and deployment methodologies for real-time software) and detectors (micropattern gaseous detectors, detectors and front-end ... More »
Sédi technology transfer : A number of studies carried out either as physics experiments or as part of our R&D programs lead to innovations that may be of interest to other units of the CEA (Department of Technological Research and Department of Military Applications) or to industry. Two areas in which commercial use has been made of technology are applications of the Micromegas detector for the detection of neutrons and applications of switched capacitor matrices (development of ASIC and rapid digitization boards). In both areas, the service ... More »
Sédi's orientations and prospects : In the medium term, the service is undergoing changes that will affect the orientation of its recruitment and training policy. Orientation towards systems architecture The increasing complexity of projects requiring the mastery of technologies and interfaces means we have to strengthen our capacity for simulation and analysis at system level. We need to be able to provide complete solutions for physics experiments in terms of front-end architecture, real time architecture and software. Orientation towards ... More »
Sédi’s major contributions to the department’s projects : A perfect understanding of detection instruments is essential for the physical interpretation of experimental data. Therefore, DAPNIA physicists and Sédi engineers and technicians work together very closely during the design phases as well as during calibration testing. These close links, which constitute a source of motivation for technical staff, are also a guarantee of the quality and performance of the instruments. However, the respective responsibilities of the physics and instrumentation services are clearly ... More »
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