Participation in the CCRI(II)-K2.H-3 comparison and study of the new TDCR-LS counter with 6 CPMs

Abstract: The “conventional” TDCR system was used for standardization of the tritiated water in the frame of the international comparison organized by CCRI(II). The prototype of the new TDCR realized at LNHB with three CPMs (Ivan et al., 2008) was improved by constructing at IFIN-HH, a system containing six channel photomultiplier tubes arranged symmetrically in a new optical chamber. The system was tested by measuring various pure beta emitters and for comparative measurements of tritiated water for validation studies. [Copyright &y& Elsevier]