题目内容

Which of the following description on bremsstrahlung radiation is not correct?

A. Bremsstrahlung radiation has a broad energy distribution, with the greatest number of x rays being produced at the low energies.
B. The general shape of the bremsstrahlung radiation is different for all x-ray imaging systems.
C. The maximum energy (in keV) of a bremsstrahlung x-ray is numerically equal to the kVp operation.
D. The greatest number of x-rays is emitted with energy approximately one third of the maximum energy.

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German physicist, Wilhelm Roentgen, discovered the X-ray in 1895. What was the first human body part he tried to image?

A. Head
B. Hand
Chest
D. Foot

Thermionic emission is electrons being boiled off and creates something called ____.

A. Space emissions
B. Static charge
C. Space charge
D. X-ray

Each of the following is a part of the cathode assembly except ____.

A. Filament
B. Stator
C. Focusing Cup
D. Associated Wiring

Filament materials are chosen for their______.①High Melting Point ②Low Melting Point ③Ability to Vaporize Easily ④High Atomic Number

A. Numbers 1 & 3 only
B. Numbers 2 & 3 only
C. Numbers 1 & 4 only
D. Numbers 2 & 4 only

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