Exam (elaborations)
Radiology NBDE Part 2 Exam With Complete Solutions
- Course
- Institution
Radiology NBDE Part 2 Exam With Complete Solutions...
[Show more]
Content preview
Radiology NBDE Part 2 Exam With Complete SolutionsIf no barrier, how far does the dentist need to be for protection?
6 feet, 90-135 degrees
Most of the x-ray is converted to?
Heat
What is the oil in the x ray tube for?
Dissipate the heat ( cooling)
Purpose of oil in x-ray tube housing
-Prevent rust
-Reduce radiation
-Dissipate heat to the target
-Lubricate
Dissipate heat to the target
Why is there oil in x-ray tube?
-For insulation
-Cools off the anode
Thermionic emission where?
Cathode ( checked, true)
,Kimia Sh Wiki: The classical example of thermionic emission is the emission of electrons
from a hot cathode into a vacuum
- Thermionic emission = electron emission from a heated metal (cathode). The cathode
has its filament circuit that supplies it with necessary filament current to heat it up.
Something about what is the best x-ray
Short wavelength, high energy
What is primary source of radiation to the operator when taking x-rays?
-Radiation left in the air
-Scatter from the patient
-Scatter from the walls
-Leakage from the x-ray head
Scatter from the patient
In performing normal dental diagnostic procedures, the operator receives the greatest
hazard from which type of radiation?
A. Direct primary-beam
B. Secondary and scatter
C. Gamma
B. Secondary and scatter
What characterizes secondary radiation?
Coming off the matter
What is the max radiation dosage for a dental professional per year?
, 50msv/year or 5 rem/year
- Per month = 4 msv, per week = 1 msv
Filaments
Heat is produced in the X-ray.
Digital image: which is the digital detector?
Charge coupled device
MRI utilizes what electromagnetic wave?
Radiowaves
COLLIMATION
What does collimation do?
The x-ray beam size/diameter & volume of irradiated tissue is reduced, area of exposure
is reduced
-usually with circle diameter of 2.75 in
Collimator function is all but:
To increase the radio-graphic contrast is not a function of the collimator.
Penetrability - increase
Collimation in x-rays
Reduces low energy radiation
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 Easton. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
76799 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now