Laser Safety Officer (100% Error-free Solutions)

Radiant Energy correct answers Energy that is emitted, transferred or received. Measured in Joules Radiant Power correct answers Power emitted, transferred, or received in the form of radiation. Measured in Watts Irradiance correct answers Radiant power striking a surface divided by the area it is striking W/cm2 Radiant Exposure correct answers Exposure over a particular area divided by the area it is striking W/cm2 What does Laser stand for? correct answers Light Amplification by Stimulated Emission of Radiation What does a laser consist of? correct answers A Pumping System - What imparts energy to the atoms of the lasing medium An Optical Cavity - Contains the medium, has mirrors and provides amplification/selection of photons Laser medium - Can be solid state (ND:YAG), gaseous (HeNe, CO2, Ar,Kr), dye lasers (Rhodamine 6G), and semiconductor What are the four modes of laser operation? correct answers Continuous Wave - Beam time over 0.25s Single Pulsed - Single Pulsed Q-switched - stored to increase power before release Repetitively pulsed - Pulsed repetitively The different time modes provide different rates at which energy is delivered What are three characteristics of a laser beam correct answers They are single wavelength (monochromatic) that are tightly in phase with each other (coherent), and they are tightly focused (collimated) What are the two main US Government agencies involved in laser regulation? correct answers OSHA and FDA What AFI covers the Laser Radiation protection program correct answers AFI 48-139, we also use ANSI 136.1 What constitutes a class 1 laser? correct answers Cannot emit laser radiation capable of causing eye/skin injury. A 1M is similar, but can cause damage if passed through magnifying optics. These may be a higher class during maintenance/service