The beta-ray spectrum of radio-chlorine

Abstract

The beta-ray spectrum of radio-chlorine (37.3 min) was investigated by the use of magnetic spectrometer. The beta-rays are composed of at least two clearly resolved groups. The upper limit of the spectrum was 4.99 mev. Some discussions are given about the Fermi and K.-U. plots. From 2.6 mev. to the end point of the spectrum Fermi plots lie on a straight line. By the absorption method, the maximum range of electrons was found to be 2.37gr/cm² and the extrapolation of Feather's range-energy relation is discussed