Electron Detachment from 20-MeVD−Ions by a Magnetic Field

Abstract

The probability of electron detachment from 20-MeV ${\mathrm{D}}^{-}$ ions by the Lorentz force of a magnetic field has been measured as a function of field strength. For a transit time through the magnetic field of ≈5×${10}^{-10\mathrm{}}$ sec, the detachment process becomes important at an equivalent electric field, $\mathcal{E}=\gamma \left(\frac{\mathrm{v}}{c}\right)\times \mathrm{B}$, of about 3.2×${10}^6$ V/cm and is essentially complete at 4.2×${10}^6$ V/cm. The results are in agreement with calculations by Hiskes and Khoe.