Flourescence
- Created by: nerdkoala
- Created on: 05-01-15 10:01
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- Fluorescence
- First excitation
- Electron flow from anode to cathode
- Usually mercury gas in between
- Electrons hit atoms and transfer energy
- Atoms excite and then relax
- Relaxation produces primarily ultraviolet photons
- Second excitation
- Phosphorous (or similar) coating on tube
- The incident ultraviolet photons cause excitation
- Relaxation produces photons in the visible light spectrum
- Visible light emission
- Calculations
- Energy = Planck's constant x frequency of photon
- Speed = frequency x wavelength
- First excitation
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