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ANR (Programme blanc, Edition 2012) Projet : MONODIAM-HE

Séminaire de physique expérimentale LAPP, Annecy, le 22 juin 2012

Caractéristiques de certains diamants : tests et mesures effectués au LPSC (voir aussi "Présentations (congrés, séminaires...)")

Historique et caractéristiques de certains diamants : tests et mesures effectués à l'IPHC



  • Collot Johann-- Professeur de physique à l'UJF (chef de projet/project leader)

  • The MONODIAM-HE project covers all topics related to the completion of track detectors made of single crystal diamond substrates: growth of diamond films with controlled density of impurities, surface preparation, bonding with various materials, assembly and connections the readout electronics, as well as characterization tests at each stage of implementation.


      • Diamant CVD


  • One of the major objectives of this project is the development of a new process of "lift-off" through ion implantation to prepare seed crystals from a single substrate (cloning diamonds). Using as primary substrate mosaics made of such clones, it is possible to grow single crystal films large. It is thus expected to achieve first pixel detectors on single crystal diamond so perfectly reproducible.


  • The validation of such detectors will be made using the procedures of particle physics (laboratory tests and beams, irradiation up to 1016 peq/cm-2). These developments could lead to the only viable solution for the reconstruction of particle tracks in the immediate vicinity of the collision point in future experiments.


  • The multidisciplinary aspect of MONODIAM-HE project should be highlighted. Participants in this project are from two national institutes (IN2P3 and Insis). The project involves laboratories each with recognized experience: Multidisciplinary Institute Hubert Curien (IPHC) and the Laboratory for Subatomic Physics and Cosmology (LPSC) have been involved in many collaborations of high energy physics and are members of the CMS collaboration and ATLAS. Research Center Plasma-Materials-Nanostructures (CRPMN) LPSC is at the forefront of science and technology plasmas. Laboratory Science Processes and Materials (LSPM) has invested nearly 20 years in the study of plasma processes and the synthesis of diamond by carbon deposition plasma assisted. The Institute of Electronics and Solid State Systems (iness) has recognized in the fields of physics and technology of semiconductor expertise.


  • The results of MONODIAM-HE project will have a major impact on all developments in the use of diamond detectors for various applications ranging from detection in nuclear physics or particle accelerator control, medical imaging or high power electronics. There is no doubt that this project will significant in the development of synthetic diamond and progress will be of great interest to the academic world as a manufacturer. Demonstrate the feasibility and availability of technologies developed in this project will give a new impetus to the whole community semiconductor broadband and allow French companies to gain a dominant position in the world.


  • During 2012, significant progress has been made by partners MONODIAM-HE: Growth in diamonds and LSPM tests InESS the IPHC and the LPSC. These tests have shown that our detectors were comparable to the best quality industrial achievements. Some of these diamonds, when connected to readout electronics have been tested successfully in a bundle. Finally, the first tests of achievement mosaic (7 seeds) were carried out by the LSPM, highlighting the potential of this technique.


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