The rate of loss of energy by β-particles in passing through matter

Abstract

Abstract This paper deals with the rate of loss of energy by β-particles in passing through matter. Though much work has been on this effect, beginning with the experiments of Lenard in 1895, there is still a great deal of uncertainty in connection with it. this is largely due to the fact that in most of the experiments which have been carried out the observations cannot be accurately interpreted on account of the complications which arise from the considerable scattering and straggling which β-particles suffer in traversing matter. There are, however, at the present time two methods of obtaining values for the rate of loss of energy by β-particles which are practically free from these sources of error.