Error reduction in simultaneous proton induced X-ray emission tomography and on/off-axis scanning transmission ion microscopy-tomography

D. Beasley; N. Spyrou

doi:10.1007/s10967-008-1609-3

Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 278: Issue 3

Error reduction in simultaneous proton induced X-ray emission tomography and on/off-axis scanning transmission ion microscopy-tomography

Authors:

D. Beasley

D. Beasley University of Surrey Department of Physics, Centre for Nuclear and Radiation Physics, School of Electronics and Physical Sciences Guildford GU2 7XH UK

Search for other papers by D. Beasley in
Current site
Google Scholar
PubMed

and

N. Spyrou

N. Spyrou University of Surrey Department of Physics, Centre for Nuclear and Radiation Physics, School of Electronics and Physical Sciences Guildford GU2 7XH UK

Search for other papers by N. Spyrou in
Current site
Google Scholar
PubMed

View More View Less

Pages:: 773–776

Online Publication Date:: 28 Nov 2008

Publication Date:: 01 Dec 2008

Article Category:: Research Article

DOI:: https://doi.org/10.1007/s10967-008-1609-3

Restricted access

Get Permissions

Abstract

Rapid micron-resolution quantitative elemental mapping is possible at the University of Surrey using a combination of proton induced X-ray emission tomography (PIXE-T) and simultaneous on/off-axis scanning transmission ion microscopy-tomography (STIM-T). A preliminary analysis of hair was performed. However, experimental uncertainties lead to large errors in tomograms and this work focuses on identifying and reducing the sources of error in both tomographic and 2D mapping. The STIM-T counts per pixel are used to normalise the PIXE-T data for charge. However, the geometry of the collimator and the scattering foil affects the detection rate since the loss of protons in the collimator increases as energy loss increases due to scattering. Errors in the PIXE geometric efficiency are greater in mapping when the detector is close to the sample. Moreover when a ‘funny’ filter was used for PIXE-T the uncertainty in the efficiency was found to increase because the sample-filter distance changes during the experiment.

Save
Cite
Email this content

Share Link

Copy this link, or click below to email it to a friend
Email this content
or copy the link directly:

https://akjournals.com/abstract/journals/10967/278/3/article-p773.xml
The link was not copied. Your current browser may not support copying via this button.

Link copied successfully

Collapse
Expand

Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)