Com M Ent S on T He Effe Ct of Û-irr a Di Ati on on Positr Oni Um Form Ati on in Poly M Ers at Lo W Te M Pera Tu Res
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چکیده
Quantitative descriptio n of the e ̃ect of Û-irradiation of PE and PMMA on positroniu m formation on the trapp ed electrons at low temp eratures is suggested. T he considerati on show s that, at least in these substances, the numb er of the trapping centers is probably enough to locali ze all or t ho -p ositroniu m, and theref ore the intensity of the longli ved positroni um comp onent is dependent mostly on the probabil i ty of Ps formation but not on the numb er of the trapping centers.
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تاریخ انتشار 2004