A patient is exposed to 210 rad of gamma rays.What is the dose the patient receives in rem?Express your answer using two significant figures.Dose =Η ΜΕ ΑΣΦSubmitRequest Answer0?rem

When a patient is exposed to radiation, the amount of energy absorbed by the body is measured in…

Answered: A patient is exposed to 210 rad of…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter32: Medical Applications Of Nuclear Physics

Section: Chapter Questions

Problem 18PE: Calculate the dose in Sv to the chest at a patient given an xray under the following conditions. The...

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Calculate the dose in Sv to the chest at a patient given an xray under the following conditions. The xray beam intensity is 1.50 W/m2, the area of the chest exposed is 0.0750 m2 35.0% of the xrays are absorbed in 20.0 kg of tissue, and the exposure time is 0.250 s.
What is the dose in mSv for: (a) a 0.1 Gy xray? (b) 2.5 mGy of neutron exposure to the eye? (c) 1.5 mGy of exposure?
✓ ON "O 2.75 MeV 0.511 MeV 0.511 MeV B, E= 1.73 MeV Eave = 0.721 Mev O MeV
A 73.0 kg person experiences a whole-body exposure to alpha radiation with an 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 gg 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.
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.
A Geiger counter measured the radiation in a closet and found it to be 3.6 mSv. What is this value in Sv, and is this level of radiation higher or lower than natural background radiation?
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. 1.8 Sv 43. A patient received a full-body electron dose of 240 mGy, a neutron dose (1 В. 1.1 mSv С. 0.85 Sv MeV) of 43 rad, and an alpha particle dose of 0.30 Gy. What was the effective dose to this patient's stomach? D. 130 mSv
Inverse Square Distance of 40” = 5mR New distance = 36”, what is your new dose ___________
If the dose rate from a sample of Ra-223 was found to be 5.0 x 10-5 mSv per hour at 1.8 metres, calculate the dose rate at 4.8 metres. Show your calculations. Give your answer to two significant figures.
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?
A thyroid cancer patient is given a dosage of 131I (half-life = 8.1 d). What fraction of the dosage of 131I will still be in the patient's thyroid after 72.9 days? (Let N0 and Nf represent the initial dose and the amount left after 72.9 days, respectively. Enter your answer as a fraction.)

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A patient is exposed to 210 rad of gamma rays. What is the dose the patient receives in rem? Express your answer using two significant figures. Dose = Η ΜΕ ΑΣΦ Submit Request Answer 0 ? rem