Following an initial Round Robin inter-comparison of gamma spectrometry measurements reported in 2014. this paper presents results from the first part of a second Round Robin inter-comparison commissioned by the European Working Group on Reactor Dosimetry in 2018. Measurements were performed by thirteen European organisations on a set of irradiated neutron activation detectors represe... https://www.roneverhart.com/E3-Spark-Plugs-6-2L-Hellcat-Demon-Trackhawk-2015-2022/