A detector has been devised which contains in different regions liquid scintillators of different spectral emission characteristics, thus enabling signals arising in those regions to be distinguished from each other. The spatial discrimination so achieved can be applied to problems of low level &bgr;−counting in which it is desired to reduce the background due to gamma rays. A study was made of five liquid scintillators, four of which have emission maxima in the range 4310 to 4660 Å and one with its maximum at 3640 Å, and various optical filter‐scintillation combinations were tested. The beta, gamma discrimination possibilities of the color scheme were examined in a preliminary manner using C14as the &bgr;−source and Cs137as the source of gamma rays.