Transcribed TextTranscribed Text

12. A beam of 3-MeV photons with intensity 108 em 2s- 1 irradiates a small sample of water. (a) How many photon-water interactions occur in one second in one cm³ of the water? (b) How many positrons are produced per second in one cm³ of the water? 2. A 137Cs source has an activity of 700 Ci. A gamma photon with energy 0.662 MeV is emitted with a frequency of 0.849 per decay. At a distance of 2 meters from the source, what is (a) the exposure rate, (b) the kerma rate in air, and (c) the dose equivalent rate? 9. A static population of 900,000 people lives in an area with a background ra- diation level that gives each person an extra 125 mrem (whole-body) per year of low LET exposure over that received by people in other parts of the coun- try. (a) Estimate the collective gonad dose to the reproductive population. (b) Estimate the number of radiation-induced cases of hereditary illness that occurs in each generation. (c) Compare this number to the natural incidence of genetic illness in this population. 7. What is the thermal fission factor " for natural uranium?

Solution PreviewSolution Preview

These solutions may offer step-by-step problem-solving explanations or good writing examples that include modern styles of formatting and construction of bibliographies out of text citations and references. Students may use these solutions for personal skill-building and practice. Unethical use is strictly forbidden.

    By purchasing this solution you'll be able to access the following files:

    50% discount

    $40.00 $20.00
    for this solution

    or FREE if you
    register a new account!

    PayPal, G Pay, ApplePay, Amazon Pay, and all major credit cards accepted.

    Find A Tutor

    View available Nuclear Engineering Tutors

    Get College Homework Help.

    Are you sure you don't want to upload any files?

    Fast tutor response requires as much info as possible.

    Upload a file
    Continue without uploading

    We couldn't find that subject.
    Please select the best match from the list below.

    We'll send you an email right away. If it's not in your inbox, check your spam folder.

    • 1
    • 2
    • 3
    Live Chats