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A pre-sample charge measurement system for quantitative NMP-analysis

Kristiansson, Per LU ; Borysiuk, Maciek LU ; Arteaga, Natalia LU ; Elfman, Mikael LU ; Fors, Erik LU ; Nilsson, Charlotta LU and Pallon, Jan LU (2010) 19th International Conference on Ion Beam Analysis In Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms 268(11-12). p.1727-1730
Abstract
In many IBA applications the main aim is to obtain quantitative figures characterizing the sample. Normally charge, i.e. number of probe particles, is used for normalization and is measured either by collecting the charge deposited in the sample or by collecting the particle in a post-sample Faraday cup or in combination. Both these techniques have drawbacks and results can be difficult to compare for samples with different matrix composition. In this work, we present an upgraded design and test results from the Lund NMP pre-sample charge measurement system. The system presented is based on a pre-sample beam deflection controlled by the beam scanning system for the nuclear microprobe. It can be operated in different modes, but during... (More)
In many IBA applications the main aim is to obtain quantitative figures characterizing the sample. Normally charge, i.e. number of probe particles, is used for normalization and is measured either by collecting the charge deposited in the sample or by collecting the particle in a post-sample Faraday cup or in combination. Both these techniques have drawbacks and results can be difficult to compare for samples with different matrix composition. In this work, we present an upgraded design and test results from the Lund NMP pre-sample charge measurement system. The system presented is based on a pre-sample beam deflection controlled by the beam scanning system for the nuclear microprobe. It can be operated in different modes, but during normal operation the beam is blanked once per pixel and the corresponding charge is collected during the beam-off period. The system does not only measure an average of the beam current during data collection, but actually a pixel-by-pixel normalization is possible. Data of the system performance are presented and in addition illustrations of how quantitative measurements both for PIXE and elastic scattering can be made more reliable. (C) 2010 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
Faraday cup, Charge measurement, Nuclear microprobe, Quantitative, Beam blanker, analysis
in
Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms
volume
268
issue
11-12
pages
1727 - 1730
publisher
Elsevier
conference name
19th International Conference on Ion Beam Analysis
external identifiers
  • wos:000278702300007
  • scopus:77953137444
ISSN
0168-583X
DOI
10.1016/j.nimb.2010.02.119
language
English
LU publication?
yes
id
d794a332-e477-40dc-924b-03b24cbc0a46 (old id 1630875)
date added to LUP
2010-07-23 14:47:40
date last changed
2018-07-01 04:06:15
@inproceedings{d794a332-e477-40dc-924b-03b24cbc0a46,
  abstract     = {In many IBA applications the main aim is to obtain quantitative figures characterizing the sample. Normally charge, i.e. number of probe particles, is used for normalization and is measured either by collecting the charge deposited in the sample or by collecting the particle in a post-sample Faraday cup or in combination. Both these techniques have drawbacks and results can be difficult to compare for samples with different matrix composition. In this work, we present an upgraded design and test results from the Lund NMP pre-sample charge measurement system. The system presented is based on a pre-sample beam deflection controlled by the beam scanning system for the nuclear microprobe. It can be operated in different modes, but during normal operation the beam is blanked once per pixel and the corresponding charge is collected during the beam-off period. The system does not only measure an average of the beam current during data collection, but actually a pixel-by-pixel normalization is possible. Data of the system performance are presented and in addition illustrations of how quantitative measurements both for PIXE and elastic scattering can be made more reliable. (C) 2010 Elsevier B.V. All rights reserved.},
  author       = {Kristiansson, Per and Borysiuk, Maciek and Arteaga, Natalia and Elfman, Mikael and Fors, Erik and Nilsson, Charlotta and Pallon, Jan},
  booktitle    = {Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms},
  issn         = {0168-583X},
  keyword      = {Faraday cup,Charge measurement,Nuclear microprobe,Quantitative,Beam blanker,analysis},
  language     = {eng},
  number       = {11-12},
  pages        = {1727--1730},
  publisher    = {Elsevier},
  title        = {A pre-sample charge measurement system for quantitative NMP-analysis},
  url          = {http://dx.doi.org/10.1016/j.nimb.2010.02.119},
  volume       = {268},
  year         = {2010},
}