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In calculating dose to points of interest for isocentric pro…

In calculating dose to points of interest for isocentric problems, What does SCPD mean?

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A patient’s prescription requires a total of 180 cGy to be d…

A patient’s prescription requires a total of 180 cGy to be delivered per day to equally weighted to POP fields (Parallel Opposed Ports).  The treatment time to deliver 100 cGy is 2.15 minutes.  What treatment time must be delivered to each field to follow the prescription?

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PDD is dependent on which of the following? I.   Energy II. …

PDD is dependent on which of the following? I.   Energy II.  Depth III. Field size IV. SSD

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A patient is to be treated with 6 MV and a depth of 5 cm.  T…

A patient is to be treated with 6 MV and a depth of 5 cm.  The linear accelerator is calibrated to 100 SAD.  The patient has a separation of 28 cm.  At midplane, the field size is 14 x 14 cm.  The field size on the patient’s skin is?

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The depth of maximum equilibrium is another term for which o…

The depth of maximum equilibrium is another term for which of the following? 

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When using a wedge in the radiation beam, the degree of tilt…

When using a wedge in the radiation beam, the degree of tilt in the iso dose curve is equal to:

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What is the primary communication tool between the radiation…

What is the primary communication tool between the radiation oncologist and the treatment planning and delivery team?

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Which of  the following is the third dimension of IMPT?

Which of  the following is the third dimension of IMPT?

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A patient is 24 cm thick.  You are to treat right and left …

A patient is 24 cm thick.  You are to treat right and left  laterals and give 3600 cGy to midline weighted 2:1 respectively.  the PDD for a depth of 12 cm is .621.  What is the given dose to the left side?

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Calculate the therapeutic ratio given a lethal dose of 6000…

Calculate the therapeutic ratio given a lethal dose of 6000 cGy to the bladder.

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