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Development of a system for determination of the C-13/C-12 isotopic ratio with high spatial resolution

Kristiansson, Per LU ; Hode, T; Auzelyte, Vaida LU ; Elfman, Mikael LU ; Malmqvist, Klas LU ; Nilsson, Christer LU ; Pallon, Jan LU ; Shariff, Asad LU and Wegdén, Marie LU (2004) In Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms 219-20. p.561-566
Abstract
Stable carbon isotopes play an important role in the interpretation of biological activity, particularly when the fossil record is studied. In combination with morphological and chemical data, isotopic information can be useful in paleontology and astrobiology. In this paper the development of a microanalytical ion beam system for the measurement of the carbon isotope ratio with high spatial resolution and good statistics is presented. The technique used is elastic scattering of alpha particles with an energy of 2.75 MeV. At this energy the C-13 cross-section is enhanced relative to the Rutherford cross-section and while the C-12 cross-section is reduced. The optimisation of the system is described, including sample preparation and the... (More)
Stable carbon isotopes play an important role in the interpretation of biological activity, particularly when the fossil record is studied. In combination with morphological and chemical data, isotopic information can be useful in paleontology and astrobiology. In this paper the development of a microanalytical ion beam system for the measurement of the carbon isotope ratio with high spatial resolution and good statistics is presented. The technique used is elastic scattering of alpha particles with an energy of 2.75 MeV. At this energy the C-13 cross-section is enhanced relative to the Rutherford cross-section and while the C-12 cross-section is reduced. The optimisation of the system is described, including sample preparation and the design of the particle detection system for high efficiency combined with good energy resolution. Finally, some results from the initial test run of the system are shown and discussed. (C) 2004 Elsevier B.V. All rights reserved. (Less)
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author
organization
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Contribution to journal
publication status
published
subject
keywords
Rutherford scattering., annular SBD, astrobiology, system, carbon isotopes
in
Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
volume
219-20
pages
561 - 566
publisher
Elsevier
external identifiers
  • wos:000221895800105
  • scopus:2342541034
ISSN
0168-583X
DOI
10.1016/j.nimb.2004.01.120
language
English
LU publication?
yes
id
ab46b3b6-da2d-4686-90f1-7ae44d1e049a (old id 275161)
date added to LUP
2007-12-20 16:25:44
date last changed
2017-01-01 06:38:22
@article{ab46b3b6-da2d-4686-90f1-7ae44d1e049a,
  abstract     = {Stable carbon isotopes play an important role in the interpretation of biological activity, particularly when the fossil record is studied. In combination with morphological and chemical data, isotopic information can be useful in paleontology and astrobiology. In this paper the development of a microanalytical ion beam system for the measurement of the carbon isotope ratio with high spatial resolution and good statistics is presented. The technique used is elastic scattering of alpha particles with an energy of 2.75 MeV. At this energy the C-13 cross-section is enhanced relative to the Rutherford cross-section and while the C-12 cross-section is reduced. The optimisation of the system is described, including sample preparation and the design of the particle detection system for high efficiency combined with good energy resolution. Finally, some results from the initial test run of the system are shown and discussed. (C) 2004 Elsevier B.V. All rights reserved.},
  author       = {Kristiansson, Per and Hode, T and Auzelyte, Vaida and Elfman, Mikael and Malmqvist, Klas and Nilsson, Christer and Pallon, Jan and Shariff, Asad and Wegdén, Marie},
  issn         = {0168-583X},
  keyword      = {Rutherford scattering.,annular SBD,astrobiology,system,carbon isotopes},
  language     = {eng},
  pages        = {561--566},
  publisher    = {Elsevier},
  series       = {Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms},
  title        = {Development of a system for determination of the C-13/C-12 isotopic ratio with high spatial resolution},
  url          = {http://dx.doi.org/10.1016/j.nimb.2004.01.120},
  volume       = {219-20},
  year         = {2004},
}