Ludlum Model 44-10 2 inch NaI Detector for low level gamma measurements. Will readily measure variations in background and is frequently used for making surveys of large areas of land. Can be coupled with a scaler to perform very sensitive measurements of radioactivity in foods, or other materials. It is the standard for seeing if something is “radioactive”.
5.1 x 5.1 cm (2 x 2 in.) (Dia x L) Nal
typically 900 cpm/µR/hr (137Cs gamma)
6.6 x 27.9 cm (2.6 x 11 in.) (Dia x L)
1.04 kg (2.3 lb)