A new experimental method is reported for the crossed beam measurement of absolute cross sections. It essentially consists in sweeping one of the beams across the other in a linear 'see-saw' motion. The method is applied to one case of electron-ion collisions. A description is given of an electron gun designed to realise a linear and distortionless motion of a ribbon electron beam. Measurements are reported regarding the electron impact ionisation of He + in the energy range 55-74 eV.
No takes yet. Share an insight, caveat, or question.
Defrance et al. (1981) studied this question.
Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context: