A Feschenko-style Bunch Shape Monitor (BSM) was used to measure the longitudinal profile of H- bunches at the Los Alamos Neutron Science Center (LANSCE) accelerator. The measurements were taken in the 201.25-MHz drift tube linac (DTL), where the design beam energy is 72.72 MeV. The results of the measurements are presented, and several unexpected features of the measurements are discussed.
Kay et al. (Tue,) studied this question.