The following figure is a simplified diagram of a commercially available EI source. (a) What voltage

The following figure is a simplified diagram of a
commercially available EI source.

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The following figure is a simplified diagram of a commercially available EI source. (a) What voltage
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(a) What voltage must be applied between the filament and
target so that electrons interacting with molecules at the point marked SS
(sample source) will have 70 eV of kinetic energy?

(b) What will happen to a molecule that diffuses toward the
filament and is ionized at point P?

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