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Poster communications

Beam tracking with micromegas and wire chambers in secondary electron detection configuration

Abstract : S3 (Super Separator Spectrometer) is a device designed for experiments with the very high intensity stable beams of LINAC, the superconducting linear accelerator of GANIL, which will be built in the framework of SPIRAL2. The aim of this project is to open new opportunities in several physics domains like: very-heavy, and super-heavy nuclei, spectroscopy at and beyond the drip line, isomers and ground state properties, multi-nucleon transfer and deep inelastic reactions. For nuclei identification purposes at the focal plane of S3it is necessary to reconstruct their trajectories. Considering that classical tracking detectors in beam would generate a lot of angular and energy straggling, due to their thickness, it was decided that SeD (Secondary electron Detector) system will be used. It consists from a thin emissive foil in beam with a low pressure gaseous detector off-beam to detect the secondary electrons ejected from the foil. Since 2008, several low pressure gaseous detectors (wire chambers and micromegas) were constructed and tested. Results obtained in the tests with the small prototype detectors convinced us that building a real size 2D prototype wire chamber and a small prototype bulk 2D micromegas is a right decision. Different tests for spatial and time characterization of the new prototype detectors were preformed. The obtained results, among which the results from the first spatial characterization of the micromegas, will be presented.
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http://hal.in2p3.fr/in2p3-00837902
Contributor : Michel Lion <>
Submitted on : Monday, June 24, 2013 - 2:38:58 PM
Last modification on : Thursday, February 1, 2018 - 1:33:53 AM

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  • HAL Id : in2p3-00837902, version 1

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M. Vostinar, B. Fernandez. Beam tracking with micromegas and wire chambers in secondary electron detection configuration. SIMEM's 2013 JED, Jun 2013, Caen, France. ⟨in2p3-00837902⟩

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