Gamma source radiography often produces dose rates that exceed acceptable limits for non-rad workers and thus require a large exclusion zone.  The creation of exclusion zones in a refinery, power plant, or other industrial setting where multiple operations are happening in close proximity means work stoppage.  Gamma source shielding can be used to reduce the size of the exclusion zone, allowing operations to continue without loss of productivity.  It also decreases the total radiation exposure to radiography technicians.

T-Flex Bismuth is the best material for radiography shielding.  It provides more attenuation per pound than lead and T-Flex Tungsten, Se-75 shielding and Ir-192 shielding and is comparable when shielding a Co-60 source.  NPO offers shielding blankets and guide tube shields specifically designed for radiography applications as well as made to order custom pieces for radiography equipment.