About this item
Fine-point phosphorescent marking pen for laboratory autography.
Glow Writer is a phosphorescent pen for marking chemiluminescent and isotope-labeled substrates for X-ray film autography. The unique marker delivers a phosphor-containing ink through a fine point porous nib. Before exposure to X-ray film, the phosphorescent writing is excited by room light. The pen utilizes a phosphor ink having an optimum concentration of phosphor and a relatively short afterglow half-life (approximately 2-3 minutes) has been selected so that upon exposure to X-ray film, autographic exposures of almost any duration will be easily readable on the film. The fine point nib is easily replaceable if it dries out.
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