Gel scintillation counting of I131 in plasma at high efficiencies. Issue 4 (July 1967) - Bell, T. K.
Abstract : A method is described for assaying low concentrations of 131 I in plasma by detecting the beta radiation in a gel scintillator. Higher detection efficiencies are obtained compared with measurements of the gamma radiation from this radioisotope using a well-type crystal of sodium iodide.