Multiple Choice
A patient is treated on a 6-MV machine at 100 cm SSD.The collimator setting is 15 x 15.There is no blocking used for this treatment.The prescription states that a dose of 3000 cGy is to be delivered to a depth of 3 cm in 10 fractions using a posterior treatment field using the nonisocentric method of calculation.The patient central axis separation is 20 cm.What is the MU setting for the treatment? Reference dose rate (RDR) for a 15 cm equivalent square is 0.993 cGy/MU.
A) 315
B) 321
C) 319
D) 317
Correct Answer:
Verified
Correct Answer:
Verified
Q1: A patient is being treated on the
Q2: A TAR at the depth of Dmax
Q3: A wedge filter is used to alter
Q4: Adjacent fields that have an overlap at
Q6: The equivalent square of rectangular field of
Q7: As the field size increases,the TAR:<br>A) increases<br>B)
Q8: All of the following apply to "absorbed
Q9: Find the PDD at 10 cm of
Q10: As the field size increases,the PDD:<br>A) increase<br>B)
Q11: A patient is being treated on the