Abstract
Track size information for low energy light ions in LiF is obtained from radial dose distributions calculated with a Monte Carlo coupled ion-electron transport code. For 30 MeV carbon ions in LiF the complete track extends as far as 5000 Å around the ion's path though 85% and 50% of the radial integrated dose is deposited in a region of 530 and 96 Å, respectively. This means that relevant radial track sizes are of the order of 10% of the total extension. Applying modified track structure theory with 8.1 keV X-rays as test radiation shows that a “saturation radius” may be defined at the centre of the track which limits a very-high-dose region that does not contribute to the thermoluminescent efficiency. Results for protons, helium and carbon ions are presented.
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Schedule a callMore From: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
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