| NUKLEONIKA 2008, 53(1):27-30
ACTIVITY RATIOS OF THORIUM ISOTOPES IN LIVING SPECIES COMPARED WITH OTHER ENVIRONMENTAL SAMPLESRenata Kierepko, Jerzy W. Mietelski, Paweł Gaca, Ewa Tomankiewicz Laboratory of Environmental Radioactivity, Department of Nuclear Physical Chemistry, The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, 152 Radzikowskiego Str., 31-342 Kraków, Poland The paper presents the results of alpha spectrometric measurements of 228Th/232Th and 230Th/232Th activity ratios for many samples of some living species analyzed within last years in our laboratory within different projects. The results were compared with typical values for soil or other non-biological samples. All results were obtained by means of alpha spectrometry. Close X |