Introduction To Health Physics
5th Edition
ISBN: 9780071835275
Author: Johnson, Thomas E. (thomas Edward), Cember, Herman.
Publisher: Mcgraw-hill Education,
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 13, Problem 13.7P
To determine
The activity after day 1 and after day10 after ingestion
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
What is the half-life, t½, (in hr) when the concentration was 100 mg/L?
Estimate the exposure rate 2 m from 4 Ci sources of 57Co,22Na,65Zn?Exposure Rate constant for 57Co=0.9 (R.cm2) / (hr.mCi)Exposure Rate constant for 22Na =12 (R.cm2) / (hr.mCi)Exposure Rate constant for 65Zn =2.7 (R.cm2) / (hr.mCi)
What is the dose in mSv for 1.5 mGy of α exposure?
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 food irradiation plant uses a 137 Cs source while another uses an equal activity of 60 Co . Assuming equal fractions of the γ rays from the sources are absorbed, why is more time needed to get the same dose using the 137 Cs source?arrow_forwardA GM counter has dead time of 250s,it records 20,000 counts per minute,what is the actual count ratearrow_forwardSuppose that the mass attenuation coefficient of cortical bones is 0.0228 cm2/g and the density is 1.37 g/cm3. What is the HVL of cortical bones?arrow_forward
- Chromium-51 is used in imaging red blood cells and has an effective half-life of 27 days. If a dose with an activity of 24 μCiμCi is given to a patient, how long will it take for the patient to have less than 3 μCiμCi present?arrow_forwardThe number of viruses (V , measured in trillions or 10¹²) that infect a person is a function of the degree of immunosuppression (I, the fraction of the immune system that is turned off by stress) according to V(I) = 5I². The fever (F, measured in ◦C) associated with an infection is a function of the number of viruses according to F(V) = 37 + 0.4V. Find fever as a function of immunosuppression. How high will the fever be if immunosuppression is complete (I = 1)?arrow_forwardif 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)?arrow_forward
- Calculate the exposure rate at 1.0 m from an unshielded 10 mCi of Cs137 source.arrow_forwardFind the minimum sample size n needed to estimate μ for the given values of c, σ, and E. c=0.90, σ=7.4, and E=2 Assume that a preliminary sample has at least 30 members. n=enter your response here (Round up to the nearest whole number.)arrow_forwardIf a patient receives a dose with an activity of 37.5 mCi of technetium-99m for cardiac imaging, how much radioactivity will be left in the patient’s body 72 hours after injection?arrow_forward
- 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_forwardQ_ A person's hand receives a radiation dose at a rate of 50mSvh-1 at a distance of 1cm from a source. What would the dose rate be if the person's hand is 18cm from source?arrow_forwardCalculate the dose in Sv to the chest of a patient given anx-ray under the following conditions. The x-ray beam intensityis 1.50 W/m2 , the area of the chest exposed is0.0750 m2 , 35.0% of the x-rays are absorbed in 20.0 kg oftissue, and the exposure time is 0.250 s.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