This Article Full Text (PDF) Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Boag, J. W. Search for Related Content PubMed PubMed Citation Articles by Boag, J. W.

Surface ionization ratios for electrons in the energy range 3 to 11 MeV

Institute of Cancer Research, Clifton Avenue, Belmont, Sutton, Surrey

This excerpt was created in the absence of an abstract.

The letter by Orchard and Martin-Smith (1971) directs attention to a phenomenon which is familiar to those using electron beams for experimental or industrial purposes and which must be fully understood when electron beams are used clinically. Published electron depth dose curves clearly demonstrate the effect (e.g. Holm, 1969). It has also been found by Spencer (1959), who calculated the energy dissipation within an infinite medium irradiated by an infinitely broad, parallel and unidirectional beam of electrons. He used the general transport equation and assumed continuous slowing down of the electrons.