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| Titel |
3D visualisation and analysis of single and coalescing tracks in Solid state Nuclear Track Detectors |
| VerfasserIn |
David Wertheim, Gavin Gillmore, Louise Brown, Nick Petford |
| Konferenz |
EGU General Assembly 2010
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 12 (2010) |
| Datensatznummer |
250041739
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| Zusammenfassung |
| Exposure to radon gas (222Rn) and associated ionising decay products can cause lung
cancer in humans (1). Solid state Nuclear Track Detectors (SSNTDs) can be used to
monitor radon concentrations (2). Radon particles form tracks in the detectors and
these tracks can be etched in order to enable 2D surface image analysis. We have
previously shown that confocal microscopy can be used for 3D visualisation of
etched SSNTDs (3). The aim of the study was to further investigate track angles and
patterns in SSNTDs. A ‘LEXT’ confocal laser scanning microscope (Olympus
Corporation, Japan) was used to acquire 3D image datasets of five CR-39 plastic
SSNTD’s. The resultant 3D visualisations were analysed by eye and inclination angles
assessed on selected tracks. From visual assessment, single isolated tracks as well
as coalescing tracks were observed on the etched detectors. In addition varying
track inclination angles were observed. Several different patterns of track formation
were seen such as single isolated and double coalescing tracks. The observed track
angles of inclination may help to assess the angle at which alpha particles hit the
detector.
Darby, S et al. Radon in homes and risk of lung cancer : collaborative analysis of
individual data from 13 European case-control studies. British Medical Journal
2005; 330, 223-226.
Phillips, P.S., Denman, A.R., Crockett, R.G.M., Gillmore, G., Groves-Kirkby,
C.J., Woolridge, A., Comparative Analysis of Weekly vs. Three monthly radon
measurements in dwellings. DEFRA Report No., DEFRA/RAS/03.006. (2004).
Wertheim D, Gillmore G, Brown L, and Petford N. A new method of imaging
particle tracks in Solid State Nuclear Track Detectors. Journal of Microscopy
2010; 237: 1–6. |
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