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PIXE Analysis Research in Lund

Akselsson, Roland LU and Johansson, Sven A E (1979) In IEEE Transactions on Nuclear Science NS-26(1). p.1358-1362
Abstract
Protons or a-particles from a 3 MV tandem Pelletron are used to induce characteristic x-rays, which are detected by a Si(Li)-detector. To optimize the quality and speed of data taking we use an absorber with a hole, pile-up rejection and on-demand beam. Forty samples may be entered simultaneously into the vacuum, and their positioning is operated by pushbuttons. The system is prepared for minicomputer steering. PIXE is combined with analysis of backscattered particles and in some cases γ-ray detection from a 19F(p,αγ) 160-reaction. At different stages of development we have a bent-chrystal spectrometer, microbeam and facilities to extract the beam from vacuum. In the introduction of PIXE to applied fields, it is important, that physicists... (More)
Protons or a-particles from a 3 MV tandem Pelletron are used to induce characteristic x-rays, which are detected by a Si(Li)-detector. To optimize the quality and speed of data taking we use an absorber with a hole, pile-up rejection and on-demand beam. Forty samples may be entered simultaneously into the vacuum, and their positioning is operated by pushbuttons. The system is prepared for minicomputer steering. PIXE is combined with analysis of backscattered particles and in some cases γ-ray detection from a 19F(p,αγ) 160-reaction. At different stages of development we have a bent-chrystal spectrometer, microbeam and facilities to extract the beam from vacuum. In the introduction of PIXE to applied fields, it is important, that physicists take part in identifying, planning and performing suitable projects e.g. experiments where rapid multielemental analysis of many samples is crucial. In Lund we investigate the elemental composition of size-fractionated airborne particles from work environments and ambient air. The objectives are then to learn about sources, transport and deposition of particles and to contribute to the understanding of relations between exposure and health effects. We are also developing procedures for trace elemental analysis of water. Detection limits in the range of 0.1 ppb have been demonstrated. In other projects in progress biological and mineralogical samples are analysed. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
particle-induced x-ray analysis, PIXE, multielemental trace element analysis
in
IEEE Transactions on Nuclear Science
volume
NS-26
issue
1
pages
1358 - 1362
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • Scopus:0017928488
ISSN
0018-9499
DOI
10.1109/TNS.1979.4330386
language
English
LU publication?
yes
id
5edce1f6-061c-4433-8c17-7d7e26bb198e (old id 2025968)
date added to LUP
2011-07-07 09:52:37
date last changed
2016-10-13 05:01:01
@misc{5edce1f6-061c-4433-8c17-7d7e26bb198e,
  abstract     = {Protons or a-particles from a 3 MV tandem Pelletron are used to induce characteristic x-rays, which are detected by a Si(Li)-detector. To optimize the quality and speed of data taking we use an absorber with a hole, pile-up rejection and on-demand beam. Forty samples may be entered simultaneously into the vacuum, and their positioning is operated by pushbuttons. The system is prepared for minicomputer steering. PIXE is combined with analysis of backscattered particles and in some cases γ-ray detection from a 19F(p,αγ) 160-reaction. At different stages of development we have a bent-chrystal spectrometer, microbeam and facilities to extract the beam from vacuum. In the introduction of PIXE to applied fields, it is important, that physicists take part in identifying, planning and performing suitable projects e.g. experiments where rapid multielemental analysis of many samples is crucial. In Lund we investigate the elemental composition of size-fractionated airborne particles from work environments and ambient air. The objectives are then to learn about sources, transport and deposition of particles and to contribute to the understanding of relations between exposure and health effects. We are also developing procedures for trace elemental analysis of water. Detection limits in the range of 0.1 ppb have been demonstrated. In other projects in progress biological and mineralogical samples are analysed.},
  author       = {Akselsson, Roland and Johansson, Sven A E},
  issn         = {0018-9499},
  keyword      = {particle-induced x-ray analysis,PIXE,multielemental trace element analysis},
  language     = {eng},
  number       = {1},
  pages        = {1358--1362},
  publisher    = {ARRAY(0x9d77490)},
  series       = {IEEE Transactions on Nuclear Science},
  title        = {PIXE Analysis Research in Lund},
  url          = {http://dx.doi.org/10.1109/TNS.1979.4330386},
  volume       = {NS-26},
  year         = {1979},
}