1518-1519 / 2605
N. Bassler, O. Jäkel, et. al., Acta
Oncologica 49 (2010), 1170
Is Carbon really high LET?
• The larger the PTV, the lower the average LET
• With SFUD, the highest LET is always at the
distal end, i.e. in normal tissue
Optimize boost volumes for high LET
Use LET as additional degree of freedom