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Single track coincidence measurements of fluorescent and plastic nuclear track detectors in therapeutic carbon beams

J. M. Osinga ; I. Ambrozova ; Katerina Pachnerova Brabcova (Institutionen för teknisk fysik, Nukleär teknik) ; M. S. Akselrod ; O. Jakel ; M. Davidkova ; S. Greilich
Journal of Instrumentation (1748-0221). Vol. 9 (2014),
[Artikel, refereegranskad vetenskaplig]

In this paper we present a method for single track coincidence measurements using two different track detector materials. We employed plastic and fluorescent nuclear track detectors (PNTDs and FNTDs) in the entrance channel of a monoenergetic carbon ion beam covering the therapeutic energy range from 80 to 425 MeV/u. About 99% of all primary particle tracks detected by both detectors were successfully matched, while 1% of the particles were only detected by the FNTDs because of their superior spatial resolution. We conclude that both PNTDs and FNTDs are suitable for clinical carbon beam dosimetry with a detection efficiency of at least 98.82% and 99.83% respectively, if irradiations are performed with low fluence in the entrance channel of the ion beam. The investigated method can be adapted to other nuclear track detectors and offers the possibility to characterize new track detector materials against well-known detectors. Further, by combining two detectors with a restricted working range in the presented way a hybrid-detector system can be created with an extended and optimized working range.

Nyckelord: Instrumentation for heavy-ion therapy; Particle tracking detectors (Solid-state detectors); Heavy-ion detectors; Hybrid detectors


Article Number: P04013



Denna post skapades 2014-07-04.
CPL Pubid: 200188

 

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Institutioner (Chalmers)

Institutionen för teknisk fysik, Nukleär teknik (2006-2015)

Ämnesområden

Teknisk fysik

Chalmers infrastruktur