High-energy radiation monitoring based on radio-fluorogenic co-polymerization II: Fixed fluorescent images of collimated x-ray beams using an RFCP gel

摘要

We have produced an optically clear, close to water-equivalent gel that is radiofluorogenic, i.e. fluoresces in UV light after exposure to high-energy radiation. Its potential as a 2D and 3D dosimetric medium is demonstrated by fixed fluorescent images of the cross-section, track and intersection of collimated (10 ?? 10 or 5 ?? 5 mm 2) 205 kVp x-ray beams. The images, produced by doses on the order of 10 Gy, are formed instantaneously and can be digitally recorded and scanned with a spatial resolution on the order of 0.1 mm. No loss of spatial resolution occurs on standing under ambient conditions for at least 3 days. ? 2011 Institute of Physics and Engineering in Medicine Printed in the UK.