Gyt is the unit used to express which quantity?

Gyt is the unit used to express which quantity?

• A. Absorbed dose in air
• B. Dose equivalent in Sv
• C. Absorbed dose in tissue
• D. Activity in Bq

Answer: (C)

Gray is the unit for absorbed dose, defined as the energy deposited by radiation per unit mass of material. This quantity directly measures how much radiation energy has actually been absorbed by the matter, which is why it’s used to express the dose in tissue. Biological effects come from energy deposited in living tissue, so the absorbed dose to tissue is the quantity most relevant in protection and medical contexts. Dose equivalent, measured in sieverts, adjusts that absorbed dose for radiation type and tissue sensitivity; activity, measured in becquerels, is a rate of radioactive decays and has no direct bearing on energy deposition. While absorbed dose can be reported for any material, the tissue context is what Gray targets in this setting.

Gray is the unit for absorbed dose, defined as the energy deposited by radiation per unit mass of material. This quantity directly measures how much radiation energy has actually been absorbed by the matter, which is why it’s used to express the dose in tissue. Biological effects come from energy deposited in living tissue, so the absorbed dose to tissue is the quantity most relevant in protection and medical contexts. Dose equivalent, measured in sieverts, adjusts that absorbed dose for radiation type and tissue sensitivity; activity, measured in becquerels, is a rate of radioactive decays and has no direct bearing on energy deposition. While absorbed dose can be reported for any material, the tissue context is what Gray targets in this setting.