A new concept in intensifying screens provides improved resolution and maximum sensitivity and can now enhance exposures with low-energy ß-emitters. Conventional intensifying screens capture particles after they have passed through the film and "reflect" them back as light. Low-energy particles can never reach a conventional intensifying screen. TranScreens, placed between the gel or blot and the film, intercept particles and "transmit" them to the film as visible light. . LE for low-energy ß-emitters like 3H, 14C, 33P, 35S, 45Ca, and 59Fe. HE for high-energy ß-emitters like 32P and ?-emitters like 125I. LE and HE Both are optimized for use with BioMax MS film, but can be used with other films. Can easily be cut to fit 18 × 24 cm film. . Sigma-Aldrich Z374318-1EA BioMax Transcreen Intensifying Screen Film, High-Energy, 8" Width, 10" Length. Country of Origin : United States. Part Number : 1179V60EA. Pack of : 1.