Abstract
An interpretation of the β-ray spectrum of radium B has already been given by one of us. It was shown that there is strong evidence for supposing that many of the β-ray groups are due to the ejection of electrons from the K, L... levels of the radium B atom by the action of the various homogeneous γ-rays emitted by the disintegrating atoms, the energy of the ejected electron being given by the quantum equation E =
hv
—
w
0
, where
v
is the frequency of the γ-ray and
w
0
the absorption energy of the level. L. Meitner has arrived at similar results from a study of the thorium bodies, and the general point of view would appear to be therefore correct. All the work on the radium B spectrum was based on the original measurements of Rutherford and Robinson carried out nine years ago, and it was to be anticipated that a more detailed examination with the improved technique would bring out many new points.
Cited by
19 articles.
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