Tungsten Shell Binding Energies

Vocabulary flashcards covering the specific binding energies for each electron shell (K, L, M, N, and O) in a tungsten atom.

Tungsten K shell binding energy

The binding energy associated with the K shell of tungsten, equal to $69.5\,\text{keV}$.

Tungsten L shell binding energy

The binding energy associated with the L shell of tungsten, equal to $12.1\,\text{keV}$.

Tungsten M shell binding energy

The binding energy associated with the M shell of tungsten, equal to $2.8\,\text{keV}$.

Tungsten N shell binding energy

The binding energy associated with the N shell of tungsten, equal to $0.6\,\text{keV}$.

Tungsten O shell binding energy

The binding energy associated with the O shell of tungsten, equal to $0.08\,\text{keV}$.

Effect of increasing mA, time, or mAs on the emission spectrum

The curve gets taller, while the endpoint stays the same.

Effect of increasing kVp on the emission spectrum

The curve gets taller and extends to the right.

Effect of adding filtration on the emission spectrum

Produces fewer low-energy photons and results in a higher average energy.

Effect of changing to a more efficient generator on the emission spectrum

Produces greater output and higher average energy, with the same maximum energy at the same kVp.

Effect of changing SID on the emission spectrum produced at the tube

Changing SID does not change the emission spectrum produced at the tube.

Rectification constant for a single-phase, 2-pulse ($1\phi\,2\text{p}$) generator

$$1.00$$

Rectification constant for a 3-phase, 6-pulse ($3\phi\,6\text{p}$) generator

$$1.35$$

Rectification constant for a 3-phase, 12-pulse ($3\phi\,12\text{p}$) generator

$$1.41$$

Rectification constant for a high-frequency (HF) generator

$$1.45$$

What happens when you decrease the anode angle

Effective focal spot decreases and anode heel effect increases.

What happens when you increase the actual focal spot

Effective focal spot increases, heat capacity improves, and recorded detail decreases.

What happens when you increase the anode angle

Effective focal spot increases and anode heel effect decreases.

What happens when you decrease the effective focal spot

Recorded detail improves.