Semi-empirical formula for large pore-size estimation from the o-Ps annihilation lifetime
by Nguyen Duc Thanh, Tran Quoc Dung, Luu Anh Tuyen, Khuong Thanh Tuan
International Journal of Nuclear Energy Science and Technology (IJNEST), Vol. 4, No. 2, 2008

Abstract: The o-Ps annihilation rate in large pores was investigated by the semi-classical approach. A semi-empirical model that simply correlates between the pore size and the o-Ps lifetime was proposed. The calculated results agree well with experimental data in the range from a few angstroms (A) to several tens of nanometres of the pore size.

Online publication date: Mon, 29-Sep-2008

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