Single Session

[Schedule Grid]

MAM-C - Non-Ionizing Radiation (NIR)

Woodrow Wilson A   10:00 - 11:00

Chair(s): Ken Barat, David Sliney
MAM-C.1   10:00  Bringing technology to Laser Safety KL Barat*, Laser Safety Solutions ; Ke Barat

Abstract: Laser Safety for most is guidance to users and or product safety requirements. While this is true, it does not address how those responsible for laser safety can address laser safety. To this author only three items have seen a changed caused by changing technology and the adoption of those technologies. They are the illuminated warning sign, moving from the single red light to LED Displays. Second, Entryway interlocks, where illuminated signs and laser status displays have been incorporated into the interlock system. Lastly laser protective eyewear, which has improved greatly with new filters and frame styles. This presentation will review a number of over 20 technologies and application that are readily available and or forthcoming that should be considered in the application of laser safety and oversight of same. The Laser Safety Officer needs to expand their arsenal.

MAM-C.2   10:15  DoD Electromagnetic Radiation Safety Incidents WE Erwin*, Defense Center for Public Health - Dayton ; AM Miaullis; EK Kelley, United States School of Aerospace Medicine

Abstract: The United States Air Force School of Aerospace Medicine (USAFSAM) has actively maintained a database of electromagnetic frequency radiation overexposure investigations across the Department of Defense since 2014. The researcher will present trends and statistics for the 82 incident reports to date, the specific circumstances of three confirmed overexposure incidents in the database, and the symptoms and outcomes of the two documented EMF injuries documented. The researcher will discuss procedures by which DoD investigates and reports these incidents.

MAM-C.3   10:30  Unintended Consequences of Laser Safety MA Lewandowski*, 3M

Abstract: International standards, including the ANSI Z136 series, Safe Use of Lasers, and IEC 60825, Safety of Laser Products, US state and federal occupational safety and health regulations, such as the Occupational Safety and Health Act of 1970, Section 5 (general duty clause), and industry best practices encourage the use of guarding around high power lasers to separate workers from the laser hazard. High power lasers are often integrated into manufacturing processes for marking, cutting, or welding processes. It is a common practice to install guarding around those lasers and laser interaction areas to isolate workers from the laser hazard and create a safer work environment. In the US, Food and Drug Administration (US FDA) rules (Title 21 Code of Federal Regulations, Part 1040) require recertification of laser products that have been modified, including the addition of guarding that reduces the laser hazard such that the laser falls into a lower hazard class. This presentation identifies the relevant requirements and guidance from US FDA that are introduced because of the implementation of occupational safety and health best industry practices and suggests methods to address compliance with these US FDA requirements.

MAM-C.4   10:45  Studies of UV-C Effects Upon the Human Cornea DH Sliney*, Consulting Medical Physicist

Abstract: There have been very few studies of threshold corneal injury from short-wavelength ultraviolet radiation. Photokeratitis and photoconjunctivitis have been studied in animal models by several investigators over the past 75 years, but only one study in human volunteers, which was performed over four decades ago. A very recent effort to study effects on the cornea by UV-C radiation has revealed some very interesting effects that suggest a different photochemical interaction mechanism. These studies have an impact on revision of human exposure guidelines for ultraviolet radiation.

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