New high radiation resistant scintillating thin films

New scintillating thin films with improved radiation hardness were synthesised for applications in the field of radiation monitoring, by dispersing Rhodamine B (RB) dye into a high radiation resistant polymeric matrix (6FDA-DAB polyimide). The radiation hardness and the scintillation efficiency of this new composite material were tested by means of ion beam induced luminescence (IBIL) and compared to thin films of the traditional NE102 plastic scintillator. The samples were irradiated by 2.0MeV 4He+ ion beam at fluences ranging between 1012 and 1015 ions/cm2. IBIL results indicated that the polyimide-based scintillator has a better radiation hardness and a good scintillation efficiency for high doses irradiations. © 2003 Elsevier Science B.V. All rights reserved.