Three papers appearing in the journal Physical Review C report on experiments at the CERN neutron time-of-flight (n_TOF) facility and the Karlsruhe Van de Graaff accelerator
that clarify the processes that affect the abundance of the element osmium-187.
A full-scale prototype detector has been built and successfully tested using a 1 MeV electron beam at the NIST Van de Graaff accelerator
A prototype consisting of six trapezoidal veto detectors arranged around a plastic scintillator has been tested with an electron beam produced by a Van de Graaff accelerator
. The results of this test and its implications for the little "a" measurement are discussed.