RTM337

Question 1

What is the main radioactive source used in Cobalt-60 teletherapy machines?

Accepted Answer

2

Question 2

What is the purpose of a mercury shutter in a teletherapy machine?

Accepted Answer

1

Question 3

What is the typical source-axis distance for a Cobalt-60 unit?

Accepted Answer

1

Question 4

Which component brings the radioactive source in front of the collimator opening?

Accepted Answer

1

Question 5

What material is commonly used for the primary collimator in a Linac?

Accepted Answer

2

Question 6

Which type of accelerator is suitable for producing high-energy electrons?

Accepted Answer

1

Question 7

What is the function of a flattening filter in a Linac?

Accepted Answer

2

Question 8

How many methods are mentioned for controlling the teletherapy source?

Accepted Answer

2

Question 9

What is the primary function of a dual ionization chamber in beam monitoring?

Accepted Answer

2

Question 10

What is a common component of both diode and triode electron guns?

Accepted Answer

1