Final answer:
The minimum recommended dosage for gamma irradiation of tissue is validated and supported by data and varies depending on several factors. The correct answer is option a.
Step-by-step explanation:
The minimum recommended dosage for gamma irradiation of tissue should be validated and supported by data. This dosage is not solely determined by a fixed value; instead, it varies based on a number of factors including the type of tissue and the specific requirements of the irradiation process.
The AAMI/ISO 11137 standard provides methods for determining a proper dose. While 1.5 megarads (15 kGy) might be cited as a typical dose for some applications, it should not be considered as the minimum or universally prescribed dose. It is also essential to check the product's label or package insert, as specific instructions for irradiation doses will be stated there.
To give context to the measurements of radiation, the most common unit used to measure the effects of radiation on biological tissue is the rad and its SI equivalent, the gray (Gy). One rad is defined as the amount of radiation that causes 0.01 J of energy to be absorbed by 1 kg of matter.