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Laser hazard evaluation method for middle infrared laser systems.

W J Marshall1, R C Aldrich, S A Zimmerman

  • 1U.S. Army Center for Health Promotion and Preventive Medicine, Aberdeen Proving Ground, MD 21010-5422, USA.

Journal of Laser Applications
|July 6, 1996
PubMed
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New hazard evaluation methods for mid-infrared lasers (wavelengths > 1.4 microns) are detailed in the updated American National Standard for the Safe Use of Lasers, ANSI Z136.1-1993. These methods compare pulse and continuous-wave exposure models for accurate laser safety assessments.

Area of Science:

  • Laser safety standards
  • Infrared optics
  • Hazard assessment

Background:

  • The American National Standard for the Safe Use of Lasers (ANSI Z136.1-1993) has updated hazard evaluation methods.
  • Previous methods may not adequately address lasers with wavelengths greater than 1.4 microns (mid-infrared).

Purpose of the Study:

  • To outline the revised hazard evaluation methodologies for mid-infrared lasers.
  • To ensure accurate laser safety assessments in this spectral region.

Main Methods:

  • Comparison of hazard potential using two distinct evaluation models.
  • Model 1: Assessment based on individual laser pulses.
  • Model 2: Assessment based on equivalent continuous-wave (CW) exposure.

Main Results:

Related Experiment Videos

  • The updated standard provides a framework for evaluating mid-infrared laser hazards.
  • The dual-model approach allows for a comprehensive assessment of different laser output types.
  • An example demonstrates the practical application of these evaluation methods.

Conclusions:

  • The revised ANSI Z136.1-1993 standard offers improved safety protocols for mid-infrared lasers.
  • Accurate hazard evaluation is crucial for preventing laser-induced injuries.
  • The presented methods facilitate effective risk management in laser applications.