Alpha Particle Track Detection with Celluloid Films
نویسندگان
چکیده
The solid state track detector of celluloid films (cellulose nitrate+camphor 25% an weight) using etching technique is suitable for low energy alpha particle detection . The critical rate of energy loss for track formation in celluloid films is determined as 1 .3 MeV/mg•Ecm2. Irradiated samples are etched in NaOH (6 N) solution at 46•Ž for 10 minutes . The etched tracks are observed under a view of optical microscope at magnification of 7•~20•`7•~40. Under vacuum condition of 10-3 Torr or at low temperature of -26•Ž no changes are observed in track formation. The feature of track fading phenomena is different in hot water and air circumstances.
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