Question
A typical chest $X$ ray exposes a patient to an effective dose of $0.02 \mathrm{mSv}$. How many rem is this, and how many chest X rays would a patient have to receive before biological effects would be observed? (The limit from Table 11.6 is $>0.25$ Sv.)
Step 1
We know that 1 Sv is equal to 100 rem. Therefore, we can use this conversion factor to find the equivalent dose in rem. \[0.02 \, mSv = 0.02 \times 10^{-3} \, Sv\] Show more…
Show all steps
Your feedback will help us improve your experience
John Nicolle and 81 other Chemistry 102 educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Calculate the dose in Sv to the chest of a patient given an x-ray under the following conditions. The x-ray beam intensity is $1.50 \mathrm{W} / \mathrm{m}^{2},$ the area of the chest exposed is $0.0750 \mathrm{m}^{2}, 35.0 \%$ of the $x$ -rays are absorbed in 20.0 $\mathrm{kg}$ of tissue, and the exposure time is 0.250 $\mathrm{s}$ .
During a 2-h period of radiation therapy, alpha radiation if deposited into a patient's body at a rate of 2.6 x 10-8 J/s. What effective dose does the 70-kg patient receive? (Units: mSv) Use the following table of RBEs. Radiation type RBE X-rays 1 Gamma rays 1 Electrons 1 Protons 2 Alpha particles 20
BIO Chest $X$ -rays A typical chest $X$ -ray uses $X$ -rays with an RBE of $0.85 .$ If the radiation dosage is 2.5 mrem, find the energy absorbed by a 78 -kg patient, assuming one-quarter of the patient's body is exposed to the X-rays.
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD