1. A single PA spine field measuring 11 x 7 cm is being treated with a 6 MV beam at a distance of 100 cm. Calculate the monitor units needed per field to deliver 300 cGy to a depth of 4 cm.
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1. A patient was planned to receive 200 cGy to a field…
1. A patient was planned to receive 200 cGy to a field measuring 12.5 cm x 16.3 cm at isocenter. If the patient measures 24 cm, calculate the size of the field on the skin surface if isocenter is located midplane and the patient is being treated on a 15 MV treatment unit.
What is the depth of maximum dose for a 10 MV beam?
What is the depth of maximum dose for a 10 MV beam?
What treatment(s) has the treatment time set in minutes? Sel…
What treatment(s) has the treatment time set in minutes? Select all that apply.
Which of the following does not affect TMR?
Which of the following does not affect TMR?
1. A patient is treated on the 6-MV treatment unit at a…
1. A patient is treated on the 6-MV treatment unit at an extended distance of 124 cm. The collimator setting is 18 x 18 cm and the field size on the patient’s skin is 22 x 22 cm. The prescription states that a dose of 4700 cGy is to be delivered to a depth of 7 cm in 10 fractions with a single posterior treatment field arrangement. Calculate the MU setting.
1. A patient is being treated AP/PA to a total dose of…
1. A patient is being treated AP/PA to a total dose of 4500 cGy. If the fields are weighted 2:1.5, what is the total dose contribution from the anterior field?
Which of the following is NOT considered an emerging disease…
Which of the following is NOT considered an emerging disease?
Which enzyme enables a retrovirus to convert its RNA genome…
Which enzyme enables a retrovirus to convert its RNA genome into DNA?
What was a common feature of cities that developed due to th…
What was a common feature of cities that developed due to the market revolution?