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Optimization of O-18 measurement using NRA for studies of isotopic content in fossil meteorites

Borysiuk, Maciek LU ; Kristiansson, Per LU ; Arteaga, Natalia LU ; Elfman, Mikael LU ; Golubev, Pavel LU ; Fors, Erik LU ; Nilsson, C; Pallon, Jan LU and Salim, Naseem LU (2011) 12th International Conference on Nuclear Microprobe Technology and Applications (ICNMTA) In Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 269(20). p.2229-2232
Abstract
In this work, we discuss the possibility of a new approach to measuring oxygen isotope ratios in fossil meteorite samples, specifically one based on nuclear reaction analysis (NRA). Variations of oxygen ratios within meteoritic chromite grains can help to determine the type of meteorite to which the grains originally belonged. In this work, we have evaluated the possibility to use the reaction O-18(p, alpha)N-15 just above the 846 keV resonance to estimate the relative oxygen-18 content in a number of test samples. Another technique has to be employed for oxygen-16 measurements. A large area segmented silicon detector is used to detect the produced alpha particles. Results of the experimental O-18 measurements for a number of samples... (More)
In this work, we discuss the possibility of a new approach to measuring oxygen isotope ratios in fossil meteorite samples, specifically one based on nuclear reaction analysis (NRA). Variations of oxygen ratios within meteoritic chromite grains can help to determine the type of meteorite to which the grains originally belonged. In this work, we have evaluated the possibility to use the reaction O-18(p, alpha)N-15 just above the 846 keV resonance to estimate the relative oxygen-18 content in a number of test samples. Another technique has to be employed for oxygen-16 measurements. A large area segmented silicon detector is used to detect the produced alpha particles. Results of the experimental O-18 measurements for a number of samples including four extraterrestrial chromite grains are presented and compared with SIMNRA simulations. The advantage of a segmented silicon detector in the form of inherent pile-up suppression can be clearly seen in the current work. (C) 2011 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Ion beam analysis, Nuclear microprobe, NRA, Semiconductor d
in
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
volume
269
issue
20
pages
2229 - 2232
publisher
Elsevier
conference name
12th International Conference on Nuclear Microprobe Technology and Applications (ICNMTA)
external identifiers
  • wos:000296544900015
  • scopus:80053568560
ISSN
0168-583X
DOI
10.1016/j.nimb.2011.02.035
project
MERGE
language
English
LU publication?
yes
id
62b75e45-fbf8-4a79-adb5-25d4d536cd41 (old id 2252605)
date added to LUP
2011-12-22 10:37:55
date last changed
2017-09-10 04:01:45
@inproceedings{62b75e45-fbf8-4a79-adb5-25d4d536cd41,
  abstract     = {In this work, we discuss the possibility of a new approach to measuring oxygen isotope ratios in fossil meteorite samples, specifically one based on nuclear reaction analysis (NRA). Variations of oxygen ratios within meteoritic chromite grains can help to determine the type of meteorite to which the grains originally belonged. In this work, we have evaluated the possibility to use the reaction O-18(p, alpha)N-15 just above the 846 keV resonance to estimate the relative oxygen-18 content in a number of test samples. Another technique has to be employed for oxygen-16 measurements. A large area segmented silicon detector is used to detect the produced alpha particles. Results of the experimental O-18 measurements for a number of samples including four extraterrestrial chromite grains are presented and compared with SIMNRA simulations. The advantage of a segmented silicon detector in the form of inherent pile-up suppression can be clearly seen in the current work. (C) 2011 Elsevier B.V. All rights reserved.},
  author       = {Borysiuk, Maciek and Kristiansson, Per and Arteaga, Natalia and Elfman, Mikael and Golubev, Pavel and Fors, Erik and Nilsson, C and Pallon, Jan and Salim, Naseem},
  booktitle    = {Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms},
  issn         = {0168-583X},
  keyword      = {Ion beam analysis,Nuclear microprobe,NRA,Semiconductor d},
  language     = {eng},
  number       = {20},
  pages        = {2229--2232},
  publisher    = {Elsevier},
  title        = {Optimization of O-18 measurement using NRA for studies of isotopic content in fossil meteorites},
  url          = {http://dx.doi.org/10.1016/j.nimb.2011.02.035},
  volume       = {269},
  year         = {2011},
}