Exam (elaborations)
LXMO CORE 2024 EXAM!!
- Course
- Institution
LXMO CORE 2024 EXAM!!
[Show more]
Content preview
LXMO CORE1. Focusing Cup Directs electrons toward target
2. Thermionic Emis- Filament electrons are boiled off producing an electron
sion cloud
3. Bremsstrahlung AKA Breaking Radiation. Occurs when a high speed elec-
tron from the cathode is deflected by the nucleus of a
target atom
4. Characteristic Ra- Occurs when cathode electrons dislodge inner orbit elec-
diation trons from the target atoms.
5. Anode Heel Affect Reduction of beam intensity due to interaction with heel
of target
6. Quality Refers to penetrating power of the beam
7. Quantity Refers to the number of xray photons in the useful beam
8. Primary Beam Beam exiting the tube before it gets to the patient
9. Remnant Radia- Photons that are exiting patient before getting to the IR
tion
10. Inverse Square Intensity is inversely proportional to the square of the
Law distance
11. Attenuation Absorption of the beam by the patient
12. Compton Effect Incident xray interacts with outer shell electron and ion-
izes the atom
13. Compton Effect What is the single most contribution to occupational ex-
posure?
14. Photoelectric Ab- Incident xray is totally absorbed during the exposure, K
sorption shell electron is ejected.
15. Coherent Scatter
1/6
, LXMO CORE
Incident xray interacts with target atom, atom becomes
excited and releases energy in the same wavelength as
original but in a different direction
16. Deterministic A high dose of radiation renders an early response
17. Stochastic A low dose of radiation renders a late response
18. Linear Radiation dose is directly proportional to the response
19. Non-Linear Varied responses from varied doses
20. Non-Threshold Any dose produces a response
21. Threshold Response happens only above a certain radiation level
22. Direct Effect If radiation ionization occurs on the target DNA then it is
considered this
23. Indirect Effect If radiation ionization occurs on a distant noncritical mole-
cule which then transfers its energy to the target molecule
it is considered this
24. Law of Bergonie Radiosensitivity is a function of the metabolic state of the
and Tribondeau tissue being irradiated
25. Linear Energy Rate at which energy is transferred from the ionizing
Transfer radiation to soft tissue
26. Oxygen Effect Tissue is more sensitive to radiation when irradiated in
the oxygenated aerobic state.
27. Short Term Effect Associated within 3 months of exposure
28. Greater than 500 At what does are short term effects noted?
mGy
29. Long Term Effects Occur several years after exposure
30. Latent effects Long term effects are also known as what
2/6
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 Aplusplus. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75632 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now