Published online by Cambridge University Press: 24 October 2008
When an electron makes a transition from a continuous state to a bound state, for example in the case of neutralization of a positive ion or formation of a negative ion, its excess energy must be disposed of in some way. It is usually given off as radiation. In the case of neutralization of positive ions the radiation forms the well-known continuous spectrum. No such spectrum due to the direct formation of negative ions has, however, been observed. This process has been fully discussed in a recent paper by Massey and Smith. It is shown that in this case the spectrum would be difficult to observe.
† Proc. Roy. Soc. A (in the Press).Google Scholar
‡ See Massey and Smith, loc. cit.
† Cf. Mott and Massey, Theory of atomic collisions, Chapter iii.
† Cf. Mott, and Massey, , Theory of atomic collisions, p. 98.Google Scholar
‡ See Massey and Smith, loc. cit.
† Massey and Smith, loc. cit.