The detector with 3 PMTs enable triple-to-double coincidence ratio counting TDCR, which is an absolute counting method for obtaining counting efficiency of the samples without external or internal standard sources. Unlike external standard methods, TDCR is a universal method applicable for both chemical and color quenching, for aqueous and organic samples and for different cocktails and range of isotopes. TDCR method can be used for counting of typical beta isotopes and also for absolute activity determination of Cerenkov radiation.
Sample capasity
- 20 ml / 7 ml / 5 ml: 40/96/96