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Beam Modifying Devices in Radiotherapy

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Questions and Answers

What is the primary function of beam modifying devices?

To absorb radiation within the patient
To produce a desirable modification in the spatial distribution of the beam (correct)
To increase the intensity of the radiation beam
To redirect the beam path away from the patient

What is the result of inserting a material in the beam path?

A change in the beam's spatial distribution (correct)
A reduction in the beam's intensity
A shift in the beam's direction
An increase in the beam's energy

What is the primary location where beam modifying devices operate?

Within the patient
Outside the patient's body
In the beam path (correct)
In the radiation source

What is the purpose of defining a desirable modification in the spatial distribution of radiation?

To ensure accurate beam delivery (B) Signup and view all the answers

What is the effect of beam modifying devices on the radiation beam?

They modify the spatial distribution of the radiation beam (A) Signup and view all the answers

What is the main purpose of shielding in beam modification?

To eliminate radiation dose to specific parts of the body (B) Signup and view all the answers

Which type of beam modification is used to increase the dose to the skin?

Bolus (D) Signup and view all the answers

What is the purpose of compensation in beam modification?

To allow normal dose distribution data to be applied to the treated zone (B) Signup and view all the answers

Which type of beam modification is used to obtain a special tilt in isodose curves?

Wedge filtration (A) Signup and view all the answers

What is commonly used as a shielding material in beam modification?

Lead (C) Signup and view all the answers