V. The use of neutron counters to obtain cloud-chamber photographs of V-particle decays

Abstract

In an attempt to increase the rate at which, cloud-chamber photographs of V-particle decays can be obtained a number of triggering arrangements incorporating BF₃ neutron counters have been used on the Pic-du-Midi (2867 m). The yields of V-particle decays are found to be comparable with the yield of a typical multiple Geiger counter system.