random important stuff Flashcards
1
Q
what kV is SXR
A
50-150kv
2
Q
What kV is DXR
A
150-300kv
3
Q
what kV is a normal diagnostic tube
A
40-150kv (dependent on region)
4
Q
What MV is a linac
A
6
5
Q
what kV is a CT scanner
A
140-150kV
6
Q
why is the target angled in diagnostic x-ray tubes but transmission in the linac?
A
At low energies (100kV) the direction of X-rays is omnidirectional meaning that some X-rays are attenuated back into the anode assembly. Therefore the target is angled so that all the X-rays go in the desired direction. Whereas at 6mV in a LINAC, the electrons are very directional so they go straight through the target to produce x-rays.
7
Q
what is the Kv of CBCT
A
30-150kv
