- #1
jpnnngtn
Heres the problem:
An x-ray tube used for cancer therapy operates at 4.0 MV, with a beam current of 25 mA striking the metal target.Nearly all of this power is transferred to a stream of water flowing through the holes drilled in the target. What rate of flow, in Kg/sec, is needed if the temperature rise of the water is not to exceed 50 degrees celsius.
I/m thinking power = 4000 V * .025 A = 100 watts
then the specific heat of water = 4186 j but this problem doesent give an initial temperature of the water.. Am I right so far?
An x-ray tube used for cancer therapy operates at 4.0 MV, with a beam current of 25 mA striking the metal target.Nearly all of this power is transferred to a stream of water flowing through the holes drilled in the target. What rate of flow, in Kg/sec, is needed if the temperature rise of the water is not to exceed 50 degrees celsius.
I/m thinking power = 4000 V * .025 A = 100 watts
then the specific heat of water = 4186 j but this problem doesent give an initial temperature of the water.. Am I right so far?
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