The system may be used with or without a computer and consists of a 6 - decade scaler / timer with built - in geiger - mueller counter , sample positioning tray and 11 - piece radiation absorber set 系統(tǒng)可以連接電腦工作也可以單獨(dú)工作,內(nèi)用g - m (蓋革)記數(shù)管和定標(biāo)/定時器組成,有樣品盤和11片放射吸收片。