The gamma radiation emitted from a source of cobalt-60 can be used to kill the bacteria on fresh, cooked and frozen foods, Killing the bacteria reducess the risk of food poisoning. The diagram shows how a convevor belt can be used to move food past a cobalt-60 source. Thick metal shielding. Cobalt-60 Moving conveyor belt (i) Which one of the following gives a way of increasing the amount of gamma radiation the food receives? Put a tick (V) in the box next to your answer. Increase the temperature of the cobalt-60 source. Make the conveyor belt move more slowly. Move the cobalt-60 source away from the conveyor belt.
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