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

Tabet, J.; Eden, S.; Feil, S.; Abdoul-Carime, H.; Farizon, B.; Farizon, M.; Ouaskit, S. and Märk, T. D. (2010). Absolute total and partial cross sections for ionization of nucleobases by proton impact in the Bragg Peak velocity range. Physical Review A, 82(2), article no. 022703.

DOI: https://doi.org/10.1103/PhysRevA.82.022703

URL: http://pra.aps.org/abstract/PRA/v82/i2/e022703

Abstract

We present experimental results for proton 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. In addition we are able to determine a complete set of cross sections for the ionization of these molecular targets by 20–150 keV protons including the total and partial cross sections and the direct-ionization and electron-capture cross sections.

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About

• Item ORO ID
• 25756
• Item Type
• Journal Item
• ISSN
• 1094-1622
• Project Funding Details

• Funded Project Name	Project ID	Funding Body
  Not Set	Not Set	Agence Nationale de la Recherche [ANR- 06-BLAN-0319-02]
  Not Set	Not Set	PICS CNRS [2290]
  Not Set	Not Set	CNRS-CNRST [17689]
  Not Set	Not Set	IEF RADAM-BIOCLUS

• Academic Unit or School
• Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
  Faculty of Science, Technology, Engineering and Mathematics (STEM)
• Research Group
• Physics
• Copyright Holders
• © 2010 The American Physical Society
• Depositing User
• Sam Eden