A system for the disposal of large volumes of air containing oxygen-15

Abstract A method is described which permits large volumes of air containing the radionuclide 15 O to be vented into the atmosphere. The short half-life of this isotope (124 s) enables use to be made of a large number of small vessels connected in series. Such a device has the effect of increasing the mean transit time. The system as installed results in a reduction of the radioactive concentration in the vented air to levels below the maximum permitted values.