Graphs that show the relationship between radiation received and the organism's response are called: a. Response curves b. Exposure curves © Dose-response curves d. Radiation-threshold curves C.

The maximum permissible workday dose for occupational exposure to radiation is 26 mrem. A 55-kg laboratory technician absorbs 3.3 mJ of 0.40-MeV gamma rays in a workday. The relative biological efficiency (RBE) for gamma rays is 1.00. What is the ratio of the equivalent dosage received by the technician to the maximum permissible equivalent dosage? O 0.23 0.28 O 0.30 0.25

A Geiger counter is placed at a distance 2m from a Cobalt 60 source emitting γ rays. The measured count rate is 545/min.. What is the count rate when the Geiger counter is moved to a new position 7m from the 60Co? Select one: a. 3.24/s b. 25.43/s c. 71.22/s d. 44.5/min

15. An IV infusion is administered to a 120 lb patient by IV infusion at a rate of 1.8 mg/kg/hr. The drug has a half-life of 8 hours and distributes into a volume of 15 L. a) Find the concentration function C(t) while the infusion is being administered. b) Find the loading dose required to make C(1) a constant if the infusion continues. c) If the loading dose from part b is given followed by 24 hours of infusion at 1.8 mg/kg/hr, graph the concentration for the first 48 hours. d) If the loading dose from part b is given followed by 24 hours of infusion at 1.8 mg/kg/hr, how long will the concentration remain within the therapeutic window of 50-100 mcg/ml?

Technetium-99 m has a half life of 4.8 hours. If a patient receives a dose with an activity of 60.2 mCi of Technetium 99 for cardiac imaging how much radioactivity will be left in the patients body 48 hours after injection?

If the gamma-ray dose rate is 50 mSv hr-1 at a distance of 1.0 m from a source, what is the dose rate at a distance of 10 m from the source?

technetium half life is 4.8 hours. If a patient receicves a dose with an activity of 35.9 mCi of technetium for cardiac imaging how much radioactivity will be left in the patient's body 96 hours after injection?

how much dose is absorbed in 30 min in a sphere of water 1cm in diameter, with an infinitesimally small P-32 souce placed at center of the sphere, with 6x105 disintegrations per gram of water? Eb- = 1.71 MeV  A) 12 cGy B) 24 cGy C) 29 cGy D) 6cGy  E) 59 cGy

A 73.0 kg person experiences a whole-body exposure to alpha radiation with energy of 1.50 MeVMeV. A total of 5.40×1012 alpha particles is absorbed. Use the Table of Relative biological effectiveness (RBE) for several types of radiation. A) What is the absorbed dose in rad? Express your answer in rads.   B) What is the equivalent dose in rem? Express your answer in rem.   C) If the source is 0.0100 g of 226Ra (half-life 1600 years) somewhere in the body, what is the activity of the source? Express your answer in decays per second.   D) If all the alpha particles produced are absorbed, what time is required for this dose to be delivered? Express your answer with the appropriate units.

Short-term and long-term effects of radiation on the health of the recipient are called ______________ effects.a. thresholdb. somaticc. latentd. genetic