EBK INTRODUCTION TO HEALTH PHYSICS, FIF
5th Edition
ISBN: 9780071835268
Author: Johnson
Publisher: VST
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 6, Problem 6.26P
(a)
To determine
The mean intrapulmonary residence time of the
(b)
To determine
The dose to the lung from the intrapulmonary activity per megabecquerel injected.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
How many Gy of exposure is needed to give a canceroustumor a dose of 40 Sv if it is exposed to α activity?
✓
ON
"O
2.75 MeV
0.511 MeV
0.511 MeV
B, E= 1.73 MeV
Eave = 0.721 Mev
O MeV
You are using a Cs-137 radiation source with an "activity" level of 5 μCi that emits primarily beta particles with energy 0.5120 MeV. Use the equation given to calculate the total beta-radiation exposure you would experience in 3 hours of lab work with this radioactive source.
(H) is the equivalent dose rate in mrem/hr, (A) is the activity of the sample in Ci, (E) is the energy of the emitted radiation in eV, and (r) is the average distance from the source during the exposure in meters. To find the radius, use a reasonable distance - as if you were working with an experimental apparatus and radioactive sources in person during these three hours (how far, on average, would you be from the source during that time?). For comparison, you would be exposed to approximately 3.5 millirems if you were to fly from the east coast to the west coast of the US.
Chapter 6 Solutions
EBK INTRODUCTION TO HEALTH PHYSICS, FIF
Ch. 6 - A 50-µC/kg (approximately 200 mR) pocket dosimeter...Ch. 6 - Prob. 6.2PCh. 6 - Prob. 6.3PCh. 6 - Prob. 6.4PCh. 6 - Prob. 6.5PCh. 6 - Prob. 6.6PCh. 6 - Prob. 6.7PCh. 6 - Prob. 6.8PCh. 6 - Prob. 6.9PCh. 6 - Prob. 6.10P
Ch. 6 - Prob. 6.11PCh. 6 - Prob. 6.12PCh. 6 - Prob. 6.13PCh. 6 - Prob. 6.14PCh. 6 - Prob. 6.15PCh. 6 - Prob. 6.16PCh. 6 - Prob. 6.17PCh. 6 - Prob. 6.19PCh. 6 - Prob. 6.20PCh. 6 - Calculate the average power density, in watts per...Ch. 6 - Prob. 6.22PCh. 6 - Prob. 6.23PCh. 6 - Prob. 6.24PCh. 6 - Prob. 6.26PCh. 6 - Prob. 6.27PCh. 6 - Prob. 6.28PCh. 6 - Prob. 6.29PCh. 6 - Prob. 6.33P
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Suppose one load irradiation plant uses a 137Cs source while another uses an equal activity of 60Co. Assuming equal fractions of the (rays from the sources are absorbed, why is more time needed to get the same dose using me 137Cs source?arrow_forwardCalculate 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.arrow_forwardHow many Gy of exposure is needed to give a cancerous tumor a dose of 40 Sv if it is exposed to acfivity?arrow_forward
- V6arrow_forwardAn x-ray technician works 5 days per week, 50 weeks per year. (Assume that the technician takes an average of six x-rays per day and receives a dose of 4.1 rem/yr as a result.) (a) Estimate the dose in rem per x-ray taken. (b) How does this result compare with the amount of low-level background radiation the technician is exposed to? Assume that low-level radiation from natural sources, such as cosmic rays and radioactive rocks and soil, delivers a dose of approximately 0.13 rem/year per person. __________times the normal background levelarrow_forwardA 7. A saline solution of 24Na with an activity of 300 kBq is injected into the bloodstream of one patient. Ten hours later, the activity of one cubic centimeter of blood is 30 Bq. Calculate the patient's blood volume.arrow_forward
- An x - ray technician works 5 days per week, 50 weeks per year. Assume the technician takes an average of eight x - rays per day and receives a dose of 5.0 rem/yr as a result. (a) Estimate the dose in rem per x - ray taken. (b) How does this result compare with the amount of low - level background radiation the technician is exposed to?arrow_forwardA small region of a cancer patient’s brain is exposed for 24.0 min to 475 Bq of radioactivity from 60Co for treatment of a tumor. If the brain mass exposed is 1.858 g and eachβ- particle emitted has an energy of 5.05x10-14 J, what is the dose in rads?arrow_forwardA radioactive contaminant gives an unfortunate 0.5 kg lab rat a dose of 1500 rem in just 1 minute. Assuming that the half life of the radioactive isotope in the contaminant is much longer than1 minute, what would the activity (in Bq) of the contaminant be if the contaminant is a 1.1MeV beta emitter?arrow_forward
- A 4-MV linear accelerator is installed 3 meters from a 150-cm thick wall of concrete separating the treatment room from an automatic elevator. The accelerator treats 150 patients per week with an average isocenter dose of 200 cGy. What is the transmitted dose to the elevator? What is the minimum thickness of concrete necessary to keep the dose below the maximum level?arrow_forwardcan you explain the question plsarrow_forwardFluorine-18 (F-18) is a commonly used radionuclide for PET scans. The half-life of F-18 is 110 min. F-18 is used to label the glucose molecules to form the radiotracer called Fludeoxyglucose (FDG). Only consider the physical half-life. Initially, a 5 ml FDG solution was prepared at a concentration of 4 mCi/ml. After 220 min, the FDG solution was all administrated to a patient. Calculate the following questions. Show steps to earn full points. (1) The initial radioactivity of the solution Ag. (ii) The decay constant of F-18 2. (iii) The actual radioactivity that the patient received Ap.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College