What of These Is the Setup in the Current Design

question 13

Multiple Choice

What of these is the setup in the current design of a Co-60 unit, which is used to administer radiation in radiation therapy?

• A)The radiation source is placed in a spot called the isocentre, from which the radiation beam is aimed at the patient.
• B)The part of the patient's body where the tumour is located is placed in the isocentre, around which numerous sources of radiation are arrayed in a circle, administering radiation from various angles.
• C)The part of the patient's body where the tumour is located is placed in the isocentre.The treatment head with a single source of radiation rotates around the isocentre, administering radiation from various angles.
• D)The radiation source is placed in a spot called the isocentre, from which the treatment head goes back and forth toward the patient, administering radiation from various angles.