ملخص: An ionization chamber with a Frich grid is used to determine both the energy (E) of the charged particles emitted from the sample positioned coplanar with the cathodes and the cosine of the emission angle ([theta]) with respect to the cathode. Using the combined information of cos ([theta]) and E, problems in particle counting due to sample absorption and scattering effects can be circumvented.An isotropic angular distribution for alpha particles is obtained. Investigations on affected areas using backscattering and self-absorption, and on unaffected areas were carried out and a resolution difference between the two areas was measured. The difference is greater than 0.6%.

لغة: إنجليزية