Sunday, February 13, 2011

Mastering Physics: Bremsstrahlung Radiation Conceptual Question

 The graph below displays the spectrum of X rays emitted when electrons are accelerated through a potential difference of 35,000 \rm {V} and collided with a molybdenum target. The shortest wavelength X rays produced by this process are of about 0.035 \rm {nm}.












Part A
If the accelerating voltage is decreased from 35,000 to 30,000 \rm V, determine what will happen to the wavelength of the shortest wavelength X rays produced.
ANSWER:

 Now return the accelerating voltage to 35,000 \rm V.

Part B
Molybdenum has an atomic number of 42. If a larger atomic number element is used as a target, determine what will happen to the wavelength of the shortest wavelength X rays produced.
ANSWER:


Part C
If a larger atomic number element is used as a target, determine what will happen to the wavelength of the K_alpha line.
 ANSWER:

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