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Absolute total and partial cross sections for ionization of nucleobases by proton impact in the Bragg peak velocity range

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اقرأ أكثر حفظ في قائمتي
  • معلومة اضافية
    • Contributors:
      Institut de Physique Nucléaire de Lyon (IPNL); Université Claude Bernard Lyon 1 (UCBL); Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS); Department of Physics and Astronomy Milton Keynes; The Open University Milton Keynes (OU); Faculté des Sciences Ben M'sik Casablanca; Université Hassan II de Casablanca = University of Hassan II Casablanca = جامعة الحسن الثاني (ar) (UH2MC); Institut für Ionenphysik und Angewandte Physik - Institute for Ion Physics and Applied Physics Innsbruck; Leopold Franzens Universität Innsbruck - University of Innsbruck
    • بيانات النشر:
      HAL CCSD
      American Physical Society
    • الموضوع:
      2010
    • Collection:
      HAL-IN2P3 (Institut national de physique nucléaire et de physique des particules)
    • نبذة مختصرة :
      We present experimental results for 80 keV proton impact ionization of nucleobases (adenine, cytosine, thymine and uracil) based on an event by event analysis of the different ions produced combined with an absolute target density determination. We are able to disentangle in detail the various proton ionization channels from mass analyzed product ion signals in coincidence with the charge-analyzed projectile. Thus, for the first time, cross sections and fragmentation patterns are compared for direct ionization (with no charge transfer between the target molecule and the projectile) and for single electron capture (with projectile neutralization) in proton-nucleobase collisions. In addition we are able to determine a complete set of cross sections for the ionization of uracil by 20-150 keV protons
    • الرقم المعرف:
      10.1103/PhysRevA.82.022703
    • الدخول الالكتروني :
      https://in2p3.hal.science/in2p3-00408267
      https://in2p3.hal.science/in2p3-00408267v1/document
      https://in2p3.hal.science/in2p3-00408267v1/file/FARIZON-2009.pdf
      https://doi.org/10.1103/PhysRevA.82.022703
    • Rights:
      info:eu-repo/semantics/OpenAccess
    • الرقم المعرف:
      edsbas.285ADB8D