A point source of radioactive material produces a dose rate of 100 Gy/hr at 1 meter from the source. What would be the dose rate at 4 m from the source?

In an industrial accident a 65 kg person receives a lethal whole-body equivalent dose of 5.4 Sv from x rays. (a) What is the equivalent dose in rem? (b) What is the absorbed dose in rad? (c) What is the total energy absorbed by the person’s body? How does this amount of energy compare to the amount of energy required to raise the temperature of 65 kg of water 0.010 C°?

A particular radioactive source produces 100 mrad of 2-MeV gamma rays per hour at a distance of 1.0 m. (a) How long could a person stand at this distance before accumulating an intolerable dose of 1 rem? (b) Assuming the gamma radiation is emitted uniformly in all directions, at what distance would a person recieve a dose of 10 mrad/h from this source?   dont provode hand written solution

A 70-kg researcher absorbs 4.5 × neutrons in a work day, each of energy 1.2 MeV. The relative biological effectiveness (RBE) for these neutrons is 10. What is the equivalent dosage of the radiation exposure for this researcher, in millirem?

if a normal dose CT scan delivers 700 mrem of radiation, how many CT scans would a patient have to have to feel mild radiation sickness (50 rem)?

A block of mass m= 5.00 kg is reased from point A and slides dows the frictionless track shown in the figure. calculate the speed of the block at piont B and C. g= 9.8m/s2

Radiation from a point source obeys the inverse-square law. If a Geiger counter 1 m from a small sample registers 360 counts per minute, what will be its counting rate 2 m from the source? What will it be 3 m from the source?

Inverse Square Distance of 40” = 5mR New distance = 36”, what is your new dose ___________

A technician is in an area for 10 minutes and the reading on the survey meter is 5mR/h. What dose of radiation does the * ?technician receive

A Geiger counter measures 750 counts in 5.0 min. How long would you want to count to get a relative error of 1%?