A 1.4-kg tumor is being irradiated by a radioactive source. The tumor receives an absorbed dose of 13 Gy in a time of 950 s. Each disintegration of the radioactive source produces a particle that enters the tumor and delivers an energy of 0.42 MeV. What is the activity AN/At (in Bq) of the radioactive source? Number i Units

A 95 kgkg patient swallows a 33 μCiμCi beta emitter with a half-life of 5.0 days, and the radioactive nuclei are quickly distributed throughout his body. The beta particles are emitted with an average energy of 0.35 MeVMeV, 90%% of which is absorbed by the body. What dose equivalent does the patient receive in the first week?

Please both

43. A patient received a full-body electron dose of 240 mGy, a neutron dose (1 A. 1.8 Sv B. 1.1 mSv MeV) of 43 rad, and an alpha particle dose of 0.30 Gy. What was the effective dose to this patient's stomach? C. 0.85 Sv D. 130 mSv 44. A nuclear power plant accident exposes a population of 24,000 people to an average effective dose of 9.2 mSv. What is the collective effective dose? A. 0.38 person-Sv B. 0.38 man-rem C. 220 person-Sv D. 220 man-rem 45. A 1-g vial of "Po has an activity of 166 TBq. What is this in traditional A. 4,500 Ci B. 4.5 Ci C. 6.1x102 Ci D. 6.1x 10" Ci units?