Week 5 signs & pulsing Flashcards
What information is required to be on the laser warning labels?
wavelengths, class of laser, eye protection, max laser power.
What laser classing would carry a sign with ‘caution’
class 2 and 3 A
What laser classing would carry a sign that read ‘Danger’?
Class 3 A with small beam, 3 B & 4.
Do medical lasers use a modulated pulse or a continuous wave (CW)?
a CW or a pulse duration of 0.1 seconds
what type of pulse is most commonly found on a C02 laser?
A super pulse.
What is a laser ‘medium’?
The substance used by the laser to produce the light of a particular wavelength. (color).
What are the active mediums used in lasers? (4)
solid (crystal rods), liquid, gas or electronic
what lasers use a gas medium (3)
helium neon, C02 & Argon/Krypton
What lasers use a solid medium?
NdYAG, HO YAG, Alexandrite & Ruby
In hair removal, are you more likely to use a longer or shorter pulse wavelength for hair removal?
long pulse.
Would you use a long or short pulse on fine hair and capillaries?
short pulse
would you use a long or short pulse for course hair and vessels?
long pulse
what wavelength is a Ruby laser?
694 nm
what wavelength is the NdYAG?
1064 nm
what wavelength is the Alexandrite?
755 nm
