RTE 1401 Exam – Questions & Accurate Answers
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Terms in this set (61)
What type of interactions cause Compton
scatter?
What are the two major factors that Volume of the tissue irradiated and kVp
can cause scatter?
What type of interaction is the Compton
primary cause of occupational dose?
In what direction does scatter move? In all directions
What effect does increasing x-ray It can increase the chances of increasing scatter
field size have on the chances of
producing scatter?
Can increasing kVp increase or It in increases Compton interactions which can lead
decrease the chances of Compton to an increase in scatter
interactions?
, Why do we not want scatter in our It creates a fog and unwanted exposure on our
diagnostic image? image that does not contain useful information
What effect does scatter have on It decreases it
contrast?
What effect does scatter have on Scatter increases patient dose because it does not
patient dose and why? go straight through or get absorbed, it bounces
around within the body
What happens to the beam field size It decreases field size, because you're closing the
when you increase collimation? lead shutters
True or false: Increasing collimation, False, when you increase collimation you are
increases the x-ray field size decreasing the x-ray field size because you are
restricting the image more
What are two ways we can minimize Beam-restricting devices and radio graphic grids
scatter?
Where is the grid placed? between the patient and the IR
What are some benefits to beam Decrease patient dose, increase contrast, reduce
restriction? scatter in patient and in IR
Define an aperture diaphragm A flat piece of lead that has a hole in it placed in the
x-ray tube that assists in beam restriction
What can occur due to the use of A large area of unsharpeness along the edge
aperture diaphragms?
What are the two types of Cones and Cylinders
attachments for aperture diaphragms
that can assist in restricting the beam
more?
Add to calendar
Play your way to mastery with fun games
Match Blocks Charms NEW
Terms in this set (61)
What type of interactions cause Compton
scatter?
What are the two major factors that Volume of the tissue irradiated and kVp
can cause scatter?
What type of interaction is the Compton
primary cause of occupational dose?
In what direction does scatter move? In all directions
What effect does increasing x-ray It can increase the chances of increasing scatter
field size have on the chances of
producing scatter?
Can increasing kVp increase or It in increases Compton interactions which can lead
decrease the chances of Compton to an increase in scatter
interactions?
, Why do we not want scatter in our It creates a fog and unwanted exposure on our
diagnostic image? image that does not contain useful information
What effect does scatter have on It decreases it
contrast?
What effect does scatter have on Scatter increases patient dose because it does not
patient dose and why? go straight through or get absorbed, it bounces
around within the body
What happens to the beam field size It decreases field size, because you're closing the
when you increase collimation? lead shutters
True or false: Increasing collimation, False, when you increase collimation you are
increases the x-ray field size decreasing the x-ray field size because you are
restricting the image more
What are two ways we can minimize Beam-restricting devices and radio graphic grids
scatter?
Where is the grid placed? between the patient and the IR
What are some benefits to beam Decrease patient dose, increase contrast, reduce
restriction? scatter in patient and in IR
Define an aperture diaphragm A flat piece of lead that has a hole in it placed in the
x-ray tube that assists in beam restriction
What can occur due to the use of A large area of unsharpeness along the edge
aperture diaphragms?
What are the two types of Cones and Cylinders
attachments for aperture diaphragms
that can assist in restricting the beam
more?
