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DistanceLearningCentre.comSTUDENT ASSESSMENT SAQ SHEET
SUBJECT: Physics
UNIT: Applied Physics Radiology
TOPIC: Radiology
LEVEL: 3
YOUR NAME:
How to use this document
You will use this document to record your answers to the Self Assessment Questions
(SAQs) in the topic you have just studied.
You should complete the table in Part 1, and the comment box in Part 2. You may add or
delete rows as appropriate when you are completing the table in Part 1.
Once completed, please upload an electronic copy of this document at your Learner
Account (for marking, and to be checked for plagiarism). Please notify your tutor by email
when you have uploaded this document at your Learner Account.
Your tutor will then provide the Answers to SAQs for you to mark your answers, using this
sheet.
Once you have completed and marked all of the SAQ answers for the topics in a particular
unit, your tutor will provide the deadline for your assessment.
© DistanceLearningCentre.com, 2022 1
, STUDENT ASSESSMENT SAQ SHEET
PART 1: SAQ answers
Fill in the following table by writing your answer to each of the Self-Assessment Questions,
in your own words.
When you have completed all of the SAQs in the topic, mark your work using the exemplar
SAQ answers that your tutor will provide.
Before you send your tutor your SAQ answers, please complete Part 2: Comments.
Mark your
answer by
SAQ Questions and Answers deleting
the tick or
the cross
SAQ 1 Question:
a) List two examples of particulate radiation.
b) List two examples of electromagnetic radiation.
c) With reference to wavelength and frequency,
explain why x-ray photons have high energy while
radio waves have much lower energy.
d) State one medical application of particulate
radiation and one medical application of
electromagnetic radiation.
Your answer:
Alpha radiation and Beta radiation.
1.2 Gamma radiation and X–rays.
X–rays have high frequencies and radio waves have low
frequencies, hence why x–ray photons have high energy and
radio waves have low energy. X-rays have a very short
wavelength and high frequency, properties that are indicative
of high energy, while radio waves have a long wavelength and
lower frequency, which is indicative of low energy.
?. One medical application of electromagnetic radiation is
gamma radiation being used in radiation therapy to treat
cancer. Another medical application of electromagnetic
radiation is the use of x-ray photons in imaging. One medical
application of particulate radiation is the use of radioisotopes
as tracers in diagnostic imaging. Another example is the use
of radiopharmaceuticals in cancer treatment.
Question:
© DistanceLearningCentre.com, 2022 2
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