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Detection of atomic and molecular mega-electron-volt projectiles using an x-ray charged coupled device camera

Abstract : We show that an x-ray charge coupled device (CCD) may be used as a particle detector for atomic and molecular mega-electron-volt (MeV) projectiles of around a few hundred keV per atomic mass unit. For atomic species, spectroscopic properties in kinetic energy measurements (i.e., linearity and energy resolution) are found to be close to those currently obtained with implanted or surface barrier silicon particle detectors. For molecular species, in order to increase the maximum kinetic energy detection limit, we propose to put a thin foil in front of the CCD. This foil breaks up the molecules into atoms and spreads the charges over many CCD pixels and therefore avoiding saturation effects. This opens new perspectives in high velocity molecular dissociation studies with accelerator facilities.
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http://hal.in2p3.fr/in2p3-00647290
Contributor : Sophie Heurteau <>
Submitted on : Thursday, December 1, 2011 - 5:48:35 PM
Last modification on : Wednesday, October 14, 2020 - 3:42:54 AM

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M. Chabot, G. Martinet, K. Béroff, T. Pino, S. Bouneau, et al.. Detection of atomic and molecular mega-electron-volt projectiles using an x-ray charged coupled device camera. Review of Scientific Instruments, American Institute of Physics, 2011, 82, pp.103301. ⟨10.1063/1.3640411⟩. ⟨in2p3-00647290⟩

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