A new alpha counting technique in the field of the thermoluminescent dating method is based upon alpha particles registering in plastic detectors LR-1 15 Kodak in close contact with archaeological or geological samples. The control of etching and counting conditions improved the precision of the detector. The following data are collected: alpha and beta dose rates deposited by uranium and thorium series; an approximate value for the uranium-thorium ratio; spatial distribution of alpha emittors within samples and the radon escape rate. This method was used simultaneously with the quartz inclusion technique to date several samples: volcanic lava flows from the Chaine des Puys (Central France); the Butte de Clermont basaltic maar; a neolithic cardial pot-sherd and bricks from a Minoan palace (Mallia, Crete). See also <i>AATA</i> <b>Vol. 21, Abstract No. 32</b>, PARIS No. 74039 for short paper on subject. -- AATA