Final answer:
A chef or sous chef could be exposed to ionizing radiation from vegetables. Food irradiation exposes food to gamma rays from sources like cobalt-60 and cesium-137, which disrupt bacterial DNA and help prevent bacterial contamination and food spoilage.
Step-by-step explanation:
A chef or sous chef (preparation cook) could be exposed to ionizing radiation from c. vegetables. Food irradiation exposes food to large doses of y rays, x-rays, or electrons, which induce no nuclear reactions and create no residual radioactivity. Cobalt-60 and cesium-137 are common radiation sources used in food irradiation. These sources emit gamma rays that penetrate food and disrupt bacterial DNA, helping to prevent bacterial contamination and food spoilage.