Abstract
Recoil ions from alpha-particle emission can contaminate surface-barrier detection systems. This contamination results in increased measurement uncertainty, and may require the replacement of expensive detectors. Disposable thin Collodion films are easily prepared and effectively retard the recoil ions when either directly applied to the surface of alpha-sources or as catcher foils between the source and the detector. The thin films are particularly effective for relatively low-level sources, but can sustain structural damage when exposed to high levels of recoil ions (tens of thousands per second) over extended periods of time.
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References
C. W. Sill, D. Olsen, Anal. Chem., 42 (1970) 1596.
J. L. Gels, S. E. Glover, A Pre-Concentration Neutron Activation Analysis Method for the Determination of Thorium-232 Utilizing a Dry-Tube Irradiation Environment, J. Radioanal. Nucl. Chem., accepted for publication.
Material Safety Data Sheet, 2006, http://www.ohsah.bc.ca/index.php?section_id=393&
T. Sillskonen, R. Pollanen, Nucl. Instr. Meth. Phys. Res., A550 (2005) 425.
T. Siiskonen, R. Pollanen, Appl. Radiation Isotopes, 60 (2004) 947.
International Commission on Radiation Units and Measurements, Stopping of Ions Heavier than Helium, ICRU Report 73, Oxford University Press, Oxford, UK, ISSN 1473-6691, 2005.
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Inn, K.G.W., Hall, E., Woodward, J.T. et al. Use of thin collodion films to prevent recoil-ion contamination of alpha-spectrometry detectors. J Radioanal Nucl Chem 276, 385–390 (2008). https://doi.org/10.1007/s10967-008-0516-y
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DOI: https://doi.org/10.1007/s10967-008-0516-y