Electron Microscopy Sciences Autoradiography Ruler

Electron Microscopy Sciences Phosphorescent, non-radioactive metric rulers for radiographs the autoradiography ruler set (ars) is an orientation and measurement device that exposes metric ruler markings directly onto x-ray film ideal- utilizes a specially formulated phosphorescent dye compound and a unique emission filter which serves as an ideal non-radioactive substitute for ink markings easy- make easy electrophoretic mobility calculations re-usable- the phosphorescent emission of each ruler can be regenerated indefinitely and can be reused any number of times high resolution - produces a high resolution image that is unaffected by intensifying screens or pre-flashed film - EMS