Excellent for marking various radiography substrates with run numbers, dates, exposure times, film alignment markings, etc., these non-radioactive markers incorporate a non-toxic, solid, phosphorescent material that will not leak or dry out. Bright green markings do not emit Beta or isotope particles; markings do not glow in the dark. Markings are visible under normal conditions; will show up on X-ray film. Spectral peak is 5600 Angstroms. Emission of non-radioactive energy may be adjusted by exposure to normal incandescent or fluorescent white light. 3 to 4 minute energy emission leaves a distinct impression; will not overexpose film as some products do.
Choose from normal or high energy level pens.
Length: 11.4cm (4-1/2"); includes pocket clip.
Not appropriate for phosphor screens.
High Energy Level Pen has higher signal emission strength and a slightly longer duration of signal emission time. High Energy Level Pen is best used for marking X-ray films similar to Kodak XLS; works well when film responsiveness is lowered as with chilled films which often require intensifier screen techniques.