Аннотация:The half-life of car bon 14 has been determined by gas counting of C*O, + CS, mixtures (where C*O, is used to designate inert carbon dioxide containing some CI40,) by using pail'S of counters that are identical in construction except for the length of the cathodes.The suitability of various equations proposed for calculating the true counting rate, Cr , from the resolving time, tr, and the observed counting rate, Co, is evaluated from experimental measurements of Co and tr and .ispresented graphically.A value of 5,370 ± 200 years for the half-life of C14 is obtain ed from these m easure ments.By comparison with the results of other workers, it is estimated that the most probable value for the half-life of carbon 14 is 5.400 ± 200 years.
