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The tube in a medical research X-ray unit uses lead (Z=82) as it's target. The Voltage...

The tube in a medical research X-ray unit uses lead (Z=82) as it's target. The Voltage calculated in part 2 is 89229.6

Assume the electrons are accelerated through the voltage calculated in part (2). What is the wavelength of the Kα line?

Now assume that the electrons are accelerated through twice the voltage calculated in part (2). What is the wavelength of the Kα line?

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