1. Facts about photons

2. PHOTONS Smallest quantity of electromagnetic radiation
bundle of energy (AKA quantum)
travels at 186,400 miles per second
x-ray and visible light photons
energy disturbances
no mass
have electric and magnetic fields that move in sine waves

3. TERMINOLOGY OF A SINE WAVE
AMPLITUDE: 1/2 RANGE FROM CREST TO VALLEY
FREQUENCY: RISE AND FALL OF SINE WAVE (HZ).
ONE HZ IS EQUAL TO ONE CYCLE PER SECOND
WAVELENGTH: DISTANCE FROM ONE VALLEY TO ANOTHER OR ONE CREST TO ANOTHER

4. Frequency and wavelength
Their relationship
Shorter wavelength
Higher Frequency
Longer Wavelength
Less frequency
At a given velocity, wavelength and frequency are inversely proportional.

5. The spectrum

6. Match the Units of measurementHz
Meter
Volts
Energy
Frequency
Wavelength

7. Significant in Radiology
DEFINITIONS
Reflection
Transmission
Absorption
Transparent
Translucent
Opaque
Significant in Radiology
Attenuation
Radioopaque
Radiolucent

8. Chapter 1, Fauber, page 8
Based on your understanding thus far of x-rays- name some of their characteristics

9. MISCELLENOUS FACTS 80 kVp= energies from 0-80 keV
x-rays are emitted from electron cloud gamma rays emitted from nucleus