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EmissionSpectrum 147
| Question | Answer |
|---|---|
| x = | Energy or keV |
| y = | Number or quantity of x-rays |
| What is the Shape of the Bremsstrahlung Graph? | Continuous curve with peak at about 1/3 of selected kVp |
| What is the Shape of the Characteristic Graph? | Discrete line at 57.4 keV |
| As Current increases, what happens to the quantity of x-rays? | Increases (Graphs Shift Up) |
| As Current increases, what happens to the energy of the x-rays? | No Change |
| As Voltage increases, what happens to the quantity of x-rays? | Increases Slightly (Graphs Shift Up) |
| As Voltage increases, what happens to the energy of the x-rays? | Brems Increases (The Bremms graph shifts right) |
| As Filtration increases, what happens to the quantity of x-rays? | Decreases Slightly (Graphs Shift Down) |
| As Filtration increases, what happens to the energy of the x-rays? | Brems Average Increases (The Brems peak shifts right) |
| As atomic number increases, what happens to the quantity of x-rays? | Increases (Graphs Shift Up) |
| As atomic number increases, what happens to the energy of the x-rays? | Characteristic Binding Energy Increases (The Characteristic graph shifts right) |
| Characteristic x-rays are 57.4 only because of _______ | Tungsten |
| As generator efficiency increases, what happens to the quantity of x-rays? | Increases (Graphs Shift Up) |
| As generator efficiency increases, what happens to the energy of the x-rays? | Brems Average Increases (The Brems peak shifts right) |
| What is a voltage waveform? | A graph that shows how voltage changes over time |
| What is on the x axis of a voltage waveform graph? | Time |
| What is on the y axis of a voltage waveform graph? | Voltage |
| The AC Voltage Waveform is created by a _______ | Single Wave, No Pulse AC Generator |
| One pair of rectifiers create ______ | 1 Pulse |
| 1 set of rectifiers makes ________ | Negative Voltage Zero |
| ______ is created by a single phase (one wave), single pulse (one set of rectifiers) generator | Half Wave Rectification |
| 2 sets of rectifiers makes _____ | The negative voltage zero and then increases the zero voltage to the Original Voltage |
| ______ is created by a single phase (one wave), two pulse (2 sets of rectifiers) generator | Full Wave Rectification |
| What is a Phase? | A repeat of the same wave, but starting at a different time |
| A ______ puts the waves out of sync with each other | Phase |
| The electron will always follow the path of the _______ (Think of it like playing tug of war) | Highest Voltage |
| Any ______ generator will have 100% ripple | Single Phase |
| When the voltage fluctuates from the _______ back to zero, this is 50% ripple | Max Halfway |
| When the voltage fluctuates from the ________ this is 100% ripple | Max all the way back to Zero |
| The fluctuation of voltage is called ______ | Ripple |
| ________ occurs during Half Wave Rectification | The negative voltage was blocked – it became zero |
| ________ occurs during Full Wave Rectification | The negative voltage was not just blocked – it was increased to the original voltage |