Advanced

Calibration and Long-Term Stability of a PIXE Set-Up

Johansson, Gerd LU ; Pallon, Jan LU ; Malmqvist, Klas LU and Akselsson, Roland LU (1981) In Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment 181(1-3). p.81-88
Abstract
A general mass calibration procedure of a PIXE set-up is described. As an example, the results of the calibration of the PIXE set-up in Lund are given. For the calibration commercially available standards were used. The parameters of a physical model were adjusted to fit a calibration curve. To decrease errors due to inhomogeneities of the standard foils, the average from four different pieces of each foil was taken. The accuracy of the calibrated system in Lund is estimated to be better than 5% for individual elements and still less for ratios of adjacent elements.

For long-term quality control of the results, a special sample has been designed. This consists of a thick silver plate with a small copper spot in the centre. It is... (More)
A general mass calibration procedure of a PIXE set-up is described. As an example, the results of the calibration of the PIXE set-up in Lund are given. For the calibration commercially available standards were used. The parameters of a physical model were adjusted to fit a calibration curve. To decrease errors due to inhomogeneities of the standard foils, the average from four different pieces of each foil was taken. The accuracy of the calibrated system in Lund is estimated to be better than 5% for individual elements and still less for ratios of adjacent elements.

For long-term quality control of the results, a special sample has been designed. This consists of a thick silver plate with a small copper spot in the centre. It is very sensitive to small changes in a PIXE set-up. By analysing this sample periodically, mistakes in the arrangement are promptly detected-a feature which is much appreciated in a mixed research, development and routine analysis laboratory. Also a measure of the long-term stability is obtained. For the Lund system, the long-term stability is 2.5% for a homogeneous sample and 4% for a small (inhomogeneous) sample. (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
PIXE, long-term stability
in
Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
volume
181
issue
1-3
pages
81 - 88
publisher
Elsevier
external identifiers
  • scopus:0008763437
ISSN
0167-5087
DOI
10.1016/0029-554X(81)90585-1
language
English
LU publication?
yes
id
ead5b7d2-2e2a-4a56-a7fa-e2c02fa3a7fd (old id 1745044)
date added to LUP
2011-01-13 14:48:46
date last changed
2017-07-30 04:34:15
@article{ead5b7d2-2e2a-4a56-a7fa-e2c02fa3a7fd,
  abstract     = {A general mass calibration procedure of a PIXE set-up is described. As an example, the results of the calibration of the PIXE set-up in Lund are given. For the calibration commercially available standards were used. The parameters of a physical model were adjusted to fit a calibration curve. To decrease errors due to inhomogeneities of the standard foils, the average from four different pieces of each foil was taken. The accuracy of the calibrated system in Lund is estimated to be better than 5% for individual elements and still less for ratios of adjacent elements.<br/><br>
For long-term quality control of the results, a special sample has been designed. This consists of a thick silver plate with a small copper spot in the centre. It is very sensitive to small changes in a PIXE set-up. By analysing this sample periodically, mistakes in the arrangement are promptly detected-a feature which is much appreciated in a mixed research, development and routine analysis laboratory. Also a measure of the long-term stability is obtained. For the Lund system, the long-term stability is 2.5% for a homogeneous sample and 4% for a small (inhomogeneous) sample.},
  author       = {Johansson, Gerd and Pallon, Jan and Malmqvist, Klas and Akselsson, Roland},
  issn         = {0167-5087},
  keyword      = {PIXE,long-term stability},
  language     = {eng},
  number       = {1-3},
  pages        = {81--88},
  publisher    = {Elsevier},
  series       = {Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment},
  title        = {Calibration and Long-Term Stability of a PIXE Set-Up},
  url          = {http://dx.doi.org/10.1016/0029-554X(81)90585-1},
  volume       = {181},
  year         = {1981},
}