RADT 142 unit 5 Test Questions and Answers
Which scatter radiation interacts with moderate x-rays, outer shell electrons, and photon changes direction? - Answer-Compton/modified
Which type of scatter radiation is responsible for the majority of scatter radiation reaching the image receptor (I...
RADT 142 unit 5 Test Questions
and Answers
Which scatter radiation interacts with moderate x-rays, outer shell electrons, and photon
changes direction? - Answer-Compton/modified
Which type of scatter radiation is responsible for the majority of scatter radiation
reaching the image receptor (IR)? - Answer-compton/modified
Compton/modified - Answer-photon is directed back towards the source (backscatter).
- majority of scatter radiation reaching IR
- occupational exposure
during fluoroscopy, what is the largest scattering object? - Answer-the patient
compton contributes to _ which - Answer-fog, which decreases contrast
what occurs during photoelectric radiation? - Answer-The inner shell electron is ejected,
and the outer electron fills the orbit- producing characteristic radiation
which type of scatter produces characteristic radiation - Answer-photoelectric radiation
what happens during pair production? - Answer-Occurs at 1.02 MeV or higher.
A high-energy photon comes close to the nucleus and loses it's energy
• 2 particles are emitted with opposing electrostatic charges- negatron & positron
photodisintegration - Answer-Occurs with photon energies of 10 MeV or higher.
• High energy photons strikes nucleus
• Nucleus becomes excited
• Ejects a nuclear fragment
which scatter radiation is used in diagnostic radiology? - Answer-compton and
photoelectric
which type of scatter radiation uses low energy, below 10kV, and x-ray photon loses no
energy? (No Ionization) - Answer-classical/thompson/unmodfied/Rayleigh
1. How does an increase in mAs affect the amplitude and the position of the emission
graph? - Answer-It affects amplitude only.
1. What happens to the efficiency of x-ray production as the voltage across the x-ray
tube decreases? - Answer-It decreases.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Scholarsstudyguide. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
