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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.

URL: http://pra.aps.org/abstract/PRA/v82/i2/e022703
DOI (Digital Object Identifier) Link: http://dx.doi.org/10.1103/PhysRevA.82.022703
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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.

Item Type: Journal Article
Copyright Holders: 2010 The American Physical Society
ISSN: 1094-1622
Project Funding Details:
Funded Project NameProject IDFunding Body
Not SetNot SetAgence Nationale de la Recherche [ANR- 06-BLAN-0319-02]
Not SetNot SetPICS CNRS [2290]
Not SetNot SetCNRS-CNRST [17689]
Not SetNot SetIEF RADAM-BIOCLUS
Academic Unit/Department: Science > Physical Sciences
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Item ID: 25756
Depositing User: Sam Eden
Date Deposited: 21 Dec 2010 22:07
Last Modified: 29 Oct 2013 19:36
URI: http://oro.open.ac.uk/id/eprint/25756
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