Gamma Sterilization

 

 



Gamma sterilization the powerful nature of gamma rays has made them useful in the sterilization of medical equipment by killing bacteria. They are also used to kill bacteria and insects in foodstuffs, particularly meat, marshmallows, pies, eggs, and vegetables, to maintain freshness.

Gamma radiation is radiation of photons in the gamma part of the spectrum. The radiation is obtained through the use of radioisotopes, generally cobalt 60 or in very few cases caesium 137. This method is preferred by many processors, because the better penetration enables administering treatment to entire industrial pallets or totes, reducing the need for material handling. A pallet or tote is typically exposed for several minutes depending on dose. Radioactive material must be monitored and carefully stored to shield workers and the environment from its gamma rays. With most designs the radioisotope can be lowered into a water storage pool to allow maintenance personnel to enter the radiation shield. In this mode the water in the pool absorbs the radiation. Other uncommonly used designs feature dry storage by providing movable shields that reduce radiation levels in areas of the irradiation chamber.

LSO can handle all required testing and sterilization activities and will provide a complete final report. The company will also handle all required annual re-validations or quarterly dose audits.

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