69. Non-ionizing radiation in the workplace – lasers.

What does the acronym LASER stand for?

Light Amplification by Stimulated Emission of Radiation.

In which parts of the electromagnetic spectrum do lasers produce light?

UV, visible, and infrared (IR) spectrum.

What makes laser light unique compared to other light sources?

• Laser light is coherent in space (all waves in phase)

• time (same frequency).

What are common sources of lasers in the workplace?

Industrial and commercial settings, and medical diagnostic machines.

What health effects can lasers cause?

Ranges from mild skin burns to irreversible skin and eye injuries.

What are the mechanisms through which lasers cause biological damage?

Thermal, acoustical, and photochemical processes.

What are some control methods for laser safety?

• Worker training

• Beam stop or attenuator

• Avoiding specular reflections

• Protective eyewear

• Warning signs on enclosures

• Remote interlock systems

• Key control of laser

• Protective clothing