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Review of Scientific Instruments / Volume 82 / Issue 10 / ARTICLES / Particle Sources, Optics and Acceleration; Particle Detectors

Rev. Sci. Instrum. 82, 103301 (2011); http://dx.doi.org/10.1063/1.3640411 (9 pages)

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

M. Chabot1, G. Martinet1, K. Béroff2, T. Pino2, S. Bouneau1, B. Genolini1, X. Grave1, K. Nguyen1, C. le Gailliard1, P. Rosier1, G. Féraud2, H. Friha2, and B. Villier3

1Institut de Physique Nucléaire d’Orsay, IN2P3-CNRS, Université Paris Sud, 91406 Orsay cedex, France
2Institut des Sciences Moléculaires d’Orsay, INP-CNRS, Université Paris Sud, 91406 Orsay cedex, France
3Hamamatsu Photonics, France

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(Received 7 July 2011; accepted 29 August 2011; published online 6 October 2011)

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.

© 2011 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. EXPERIMENTAL PART
    1. Camera characteristics
      1. Camera specifications
      2. CCD internal description
    2. Experimental setup
  3. RESULTS AND DISCUSSION
    1. Detection of MeV atomic ion projectiles
      1. Measure of the total kinetic energy of MeV ions with the CCD
      2. Spatial response of the CCD to MeV ions
      3. Dose effects of MeV ions
    2. Detection of MeV molecular ions
      1. Detection of C 2 projectiles
      2. Detection of CH projectiles
  4. CONCLUSION

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KEYWORDS and PACS

Keywords

CCD image sensors, molecular beams, particle detectors

PACS

  • 07.77.Gx

    Atomic and molecular beam sources and detectors

  • 42.79.Pw

    Imaging detectors and sensors

  • 29.40.-n

    Radiation detectors

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3640411

PUBLICATION DATA

ISSN

0034-6748 (print)  
1089-7623 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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