Radiation detection instruments (and spare parts) of one of the following types, specially designed, or adaptable, for the detection of measure ment of nuclear radiation, such as alpha and beta particles, gamma rays, neutrons and protons:
Ionstraimi braite radaíochta (agus páirteanna breise) d'aon chineál acu seo a leanas, atá ceaptha go speisialta, nó inchurtha in oiriúint, chun radaíocht núicléach a bhrath no a thomhas, mar atá alfa agus béata-cháithníní, gamma-ghathanna, neodróin agus prótóin: