Electron arc therapy treatment planning verification with alanine/EPR dosimetry

Alanine/EPR dosimetry was applied to measure dose distributions during elec tron are therapy treatments generated by electron beams moving isocentrical ly over a stated are. Alanine-polyethylene pellets, prepared at ISS accordi ng to the NIST recipe, inserted in a homogeneous cylindrical and anthropomo rphic phantoms, were used. Preliminary, alanine response to static electron beams in the (6-20) MeV nominal energy range was studied.;Then alanine dos imetry was applied to determine the dose versus the gantry angle at a refer ence point in a cylindrical homogeneous phantom, Finally, are therapy treat ment planning verification was performed in anthropomorphic phantom. (C) 20 00 Elsevier Science Ltd. All rights reserved.