Results from a positron accumulator that operates efficiently over a range of repetition rates from 100 to 1000 Hz are presented. Moderated β‐decay positrons from a radioactive source are accumulated in a Penning‐style trap. At a repetition rate of 250 Hz an accumulation efficiency of ∼25% has been achieved. Two techniques for reducing the time spread of the positron pulses have been investigated. The most successful method reduces the pulse width from 120 ns to 20 ns.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/87600/2/487_1.pd
