General description

Excellent for marking various substrates that are to be radiographed with run numbers, dates and exposure times, film alignment markings, etc. They incorporate a non-toxic phosphorescent material that will not leak or dry out, have no bladders or vials, and no liquid to spill. Bright green markings are visible under normal conditions, do not glow in the dark, but will show up on x-ray film. The spectral peak is 5,600 angstroms. The non-radioactive energy emitted may be adjusted by exposure to normal incandescent light or fluorescent white light. The 3 to 4 minute energy emission leaves a distinct impression but will not overexpose film as some products do.

Non-radioactive markers for annotating autoradiograms.

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