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A PIXE System for Routine Longitudinal Scanning of Single Hair Strands

Li, Hong-Kou; Malmqvist, Klas LU ; Carlsson, Lars-Eric and Akselsson, Roland LU (1984) In Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms 3(1-3). p.347-351
Abstract
This article describes a PIXE system designed and constructed for routine longitudinal scanning of single hair strands. In constructing a PIXE system for trace elemental scans of single hair strands on a routine basis, a fairly intense beam has to be used but the heating damage must be kept to a minimum. The experimental conditions (charge integration, beam homogeneity etc.) have to be carefully controlled in order to give accurate PIXE results. The geometrical thickness of the hair at each point of the scan has to be determined and a qualitative knowledge of the elemental distribution over the cross section of the hair has to be provided for a proper interpretation of the PIXE results. In the present PIXE system the geometrical thickness... (More)
This article describes a PIXE system designed and constructed for routine longitudinal scanning of single hair strands. In constructing a PIXE system for trace elemental scans of single hair strands on a routine basis, a fairly intense beam has to be used but the heating damage must be kept to a minimum. The experimental conditions (charge integration, beam homogeneity etc.) have to be carefully controlled in order to give accurate PIXE results. The geometrical thickness of the hair at each point of the scan has to be determined and a qualitative knowledge of the elemental distribution over the cross section of the hair has to be provided for a proper interpretation of the PIXE results. In the present PIXE system the geometrical thickness of a hair strand at each point along the scan is determined by counting the number of backscattered protons simultaneously with the PIXE analysis, and a qualitative knowledge of the elemental distribution over the cross section of the hair is obtained through bombarding the hair at particular points with different proton energies. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
longitudinal scanning, hair strands, PIXE, trace element analysis
in
Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
volume
3
issue
1-3
pages
347 - 351
publisher
Elsevier
external identifiers
  • scopus:48749140780
ISSN
0168-583X
DOI
10.1016/0168-583X(84)90392-6
language
English
LU publication?
yes
id
ebffcb24-b125-4226-be41-56f23debd6be (old id 1745097)
date added to LUP
2011-01-13 14:46:29
date last changed
2017-07-30 04:28:40
@article{ebffcb24-b125-4226-be41-56f23debd6be,
  abstract     = {This article describes a PIXE system designed and constructed for routine longitudinal scanning of single hair strands. In constructing a PIXE system for trace elemental scans of single hair strands on a routine basis, a fairly intense beam has to be used but the heating damage must be kept to a minimum. The experimental conditions (charge integration, beam homogeneity etc.) have to be carefully controlled in order to give accurate PIXE results. The geometrical thickness of the hair at each point of the scan has to be determined and a qualitative knowledge of the elemental distribution over the cross section of the hair has to be provided for a proper interpretation of the PIXE results. In the present PIXE system the geometrical thickness of a hair strand at each point along the scan is determined by counting the number of backscattered protons simultaneously with the PIXE analysis, and a qualitative knowledge of the elemental distribution over the cross section of the hair is obtained through bombarding the hair at particular points with different proton energies.},
  author       = {Li, Hong-Kou and Malmqvist, Klas and Carlsson, Lars-Eric and Akselsson, Roland},
  issn         = {0168-583X},
  keyword      = {longitudinal scanning,hair strands,PIXE,trace element analysis},
  language     = {eng},
  number       = {1-3},
  pages        = {347--351},
  publisher    = {Elsevier},
  series       = {Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms},
  title        = {A PIXE System for Routine Longitudinal Scanning of Single Hair Strands},
  url          = {http://dx.doi.org/10.1016/0168-583X(84)90392-6},
  volume       = {3},
  year         = {1984},
}