An extension set for 81Rb-81mKr solution generators for lung ventilation studies

For ⁸¹Rb-^81mKr solution generators, an extension set has been developed, which strips the ^81mKr from the liquid eluate with a stream of air for use in lung ventilation studies. Via a three-way valve the ⁸¹Rb-^81mKr solution generator can be operated alternately in the perfusion mode or in the ventilation mode. Measurements and calculations have been performed to get more insight into the parameters of interest for an optimum design of the extension set and its operation conditions.