Linac Structure

Question 1

What are the parts of a linac ?

Answer 1

Electron gun: produce electron heated filament cathode and anode sets the acceleration at first

Then entering in the accelerating waveguide, which has cavities at resonance to accelerate the electron

The wave that is used to accelerate is produce by the klystron
A circulator avoid the reflecting wave to come back to the waveguide and to the klystron
Bending magnet to focus and position the beam of electron on target to create photon treatment or scattereing foil for electron treatment

Question 2

How to manage radiation exposure

Answer 2

1idemtify, asses the situation, who is affected evaluate internal external

2secure place close door,evacuate, stop beam,

3 report authorities create report check dosimeter

4does affected people need medical assument

5 deal with environment

6 review on why it happened. How can we prevent it

Question 3

Differ r mri and CT

Answer 3

Timing, zipper artefact that looks like salt pepper line

External electronic equipment slice over lap

For ct beam harndning and metal artefact