Abstract: A method of simply and quickly determining ?-ray releasing nuclides having long half-life without carrying out a chemical separation is provided. By inputting a data of pulses incident to an ?-ray detector in a computer, obtaining time distribution of the incident pulses by using a very short time measuring timer and plotting, and fitting the linear originated in a random event corresponding to the background and the non-linear originated in the correlated events of parent nuclides-progenies by using the least squares method, the whole generating probability P (t) from the parent nuclide to the progeny thereof is obtained. By subtracting the random events portion from the P(t), the correlated events portion is extracted. The radioactivity per unit can be obtained by dividing the extracted correlated events portion by the measured time, the amount of the supplied sample and the counting efficiency.

Abstract: A method of simply and quickly determining &agr;-ray releasing nuclides having long half-life without carrying out a chemical separation is provided.

Abstract: A method of simply and quickly determining &agr;-ray releasing nuclides having long half-life without carrying out a chemical separation is provided.

Abstract: An outer conductor attachment apparatus for use with a coaxial cable connector. The apparatus comprises a truncated cone shaped member having a longitudinal passage extending therethrough for insertion of the inner conductors of a coaxial cable. Adjacent the larger end of the cone shaped member, there is an annular groove. An annular locking ring sized to fit into the groove, is expandable so that it can be slid over the cone shaped member and into the groove. A clamping member is securable over the cone shaped member and the ring to clamp the outer conductor between the outer surface of the cone shaped member and the inner surfaces of the clamping member and locking ring.