Abstract:Photoelectron-current measurement by low-frequency electromodulation probe (PMMP) is proposed as a sensitive method to determine the rate Gr of neutral free radical production by the photodeionization of negative ion beams (PDINIB). The PMMP method was employed to evaluate the production rate in a trial surface-processing apparatus developed in the author’s laboratory utilizing a steady-flux refined beam of neutral free radicals produced by the PDINIB procedure. A Cu−63 negative ion beam of kinetic energy Ei v… Show more
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