Deuterium beam species measurement by D-D fusion product analysis

Results are discussed for a diagnostic method of determining molecular composition of ions exiting an 80-keV high-power ion source designed for neutral-beam heating in controlled fusion research. By viewing the charged products of a d-d reaction from a deuterium beam in a deuterium gas target, one can calculate the proportion of full, half, and a third energy products extracted from the accelerator. (orig.)