Current Film and Screen Systems vs. BioMax TranScreen LE System

Conventional film-intensifying screen format 
Interaction between conventional intensifying screens/film
(indirect autoradiography) and penetrating radiation (such as 32 P & 125 I).

A conventional intensifying screen offers no increase in sensitivity to medium and low energy isotopes (such as 3 H, 14 C, 35 S, and 33 P) because the isotopes lack sufficient energies to reach the phosphor layer of the screen.

 Low Energy TranScreen
Low Energy TranScreen with BioMax MS film 

The innovative design of the TranScreen systems presents the phosphor to the beta particles without prior beta attenuation. The result is the first intensifying screen for low and medium energy beta emitters. Through interaction with the phosphor component of the intensifying screen, the energy from the beta particle is converted to light energy (photons). The photons emitted from the phosphor interact with the emulsion layer(s) of the film and initiate the formation of an image.

The TranScreen LE/BioMax MS film equals or exceeds the sensitivity of generic screens/BioMax XAR film combinations with significantly higher resolution. The thinner phosphor layer of the TranScreen LE offers not only maximum sensitivity for low and medium energy beta emitters, but also high sensitivity for 32 P and 125 I.

The TranScreen LE/BioMax MS film combination equals or exceeds the sensitivity offered by generic screen/X-0MAT AR film combination with greater resolution. The increase in resolution  seen with the TranScreen LE is a result of the shortened distance between the point source ( 32 P or 125 I) and the emulsion layer of the film. The TranScreen LE does not match the sensitivity of TranScreen HE  for 32 P & 125 I because it lacks sufficient phosphor to maximize all the beta particles emitted from 32 P and 125 I.