Excellent for marking various radiography substrates with run numbers, dates, exposure times, film alignment markings, and more.

• Non-toxic, non-radioactive phosphorescent marking material
• High signal emission strength
• Provided with convenient pocket clip

These non-radioactive markers incorporate a non-toxic, solid, phosphorescent material that will not leak or dry out.

The spectral peak is 5600 Angstroms. The emission of non-radioactive energy may be adjusted by exposure to normal incandescent or fluorescent white light. The 3- to 4-minute energy emission leaves a distinct impression but will not overexpose film as some products do. Choose from normal or high energy level pens which are 11.4 cm (4¹/₂") long with a pocket clip. Not appropriate for phosphor screens.

The High Energy Level Pen has higher signal emission strength and a slightly longer duration of signal emission time. Best used for marking X-ray films similar to Kodak XLS. It also works well when film responsiveness is lowered as with chilled films which often require intensifier screen techniques. Therefore, the use of an intensifier screen will not occur as a variable in the X-ray marking procedure.

Bright green markings do not emit Beta or isotope particles and do not glow in the dark. They are visible under normal conditions and will show up on X-ray film.