Food Irradiation Food is often irradiated with either x rays or electron beams to help prevent spoilage. A low dose of 5-75kilorads (k rad) helps to reduce and kill inactive parasites, a medium dose of 100-400krad kills microorganisms and pathogens such as salmonella, and a high dose of 2300-5700krad sterilizes food so that it can be stored without refrigeration,
(a) A dose of 175krad kills spoilage microorganisms in fish. H x rays are used, what would be the dose in Gy, Sv, and rem, and how much energy would a l50-g portion of fish absorb?
(b) Repeat part (a) if electrons of RBE 1.50 are used instead of x rays.