Investigation of the response of thin CR-39 polymer foils irradiated with light ions.
Fiche publication
Date publication
juillet 2005
Auteurs
Membres identifiés du Cancéropôle Est :
Pr FROMM Michel
Tous les auteurs :
Oganesyan VR, Trofimov VV, Gaillard S, Fromm M, Danziger M, Hermsdorf D, Orelovitch OL
Lien Pubmed
Résumé
One of the most often used polymer for radiation research and protection dosimetry is poly[diethylene glycol his(allyl carbonate)] which is commercially named CR-39. Due to a unique sensitivity it is the most suitable material for low-energy light ions studies. In this work the track breakthrough is studied by using an effective method of electrolytic etching, which was earlier successfully applied to swift heavy ions in several polymers. Samples of CR-39 with the thickness of 22-400 mu m were irradiated with protons and helium ions having energies up to 7 MeV/amu. Using the conductivity data, sequent openings of the pores were observed. Moreover, with the help of electron scanning microscopy, a model of pore formation was constructed and the influence of energy losses on the geometry of tracks as well as the rate of the process were investigated. Finally, the latent track size was obtained from the experimental data and compared with that of other ions. (c) 2005 Elsevier B.V. All rights reserved.
Référence
Nucl Instrum Methods Phys Res Sect B-beam Interact Mater Atoms. 2005 Jul;236:289-94.