Daybreak has a number of different alternatives for sample irradiation.  The best choice will depend both on the reader system and the experimental protocol.  For example, the very long exposure times in geological dating may make the 801E irradiator best, as the reader will not be tied up doing irradiations.  However, some of the single aliquot protocols now in use are far easier and simpler with an irradiator mounted on the reader.  We would be happy to discuss your application and suggest the best irradiator for it.