The gross α and β activity concentrations in the thermal waters of Karakaya-Aya¸s, ˙I¸cmece-Aya¸s, Beypazarı (Dutluk-Tahtalı), Haymana, and Kızılcahamam spas in Ankara Province were measured by MPC-9604 multi-detector α/β counting system. Ranges of activity concentrations found were from to Bq L−1 for gross α and from to Bq L−1 for gross β. The ranges of minimum detectable concentrations for gross α (– Bq L−1 ) and for gross β (– Bq L−1 ) were obtained. |