ILSC 2007 Paper #907 (Temporal Effects of Turbulence on Laser Safety Ranges)
Temporal Effects of Turbulence on Laser Safety Ranges
Authors:
Noam Sapiens, NSLS Consulting; Rehovot Israel
Presented at ILSC 2007
The effects of atmospheric turbulence on the energy distribution and hence on the safety range of a laser are covered by most military and outdoor laser safety standards. In these standards, a formula for assessing the energy distribution maxima after traveling through a turbulent medium is given. This formula only considers the spatial distribution of the laser energy. An analysis is made to account for temporal effects such as pulse dispersion and repetitive pulses. This is accomplished by using the turbulence structure function. A simplified calculation procedur...$28.00
ILSC 2007 Paper #906 (Spatial Effects of Turbulence on Laser Safety Ranges)
Spatial Effects of Turbulence on Laser Safety Ranges
Authors:
Noam Sapiens, NSLS Consulting; Rehovot Israel
Presented at ILSC 2007
The effects of atmospheric turbulence on the energy distribution and hence on the safety range of a laser are covered by most military and outdoor laser safety standards. In these standards, a formula for assessing the energy distribution maxima after traveling through a turbulent medium is given. This formula assumes a Gaussian beam in the far field and has no consideration of the effects of the turbulence on the beam geometry. The use of Kolmogorov phase screens to advance the beam through atmospheric turbulence enables an accurate assessment of atmospheric effect...$28.00
ILSC 2007 Paper #905 (Laser Safety in Two Sided Exercises)
Laser Safety in Two Sided Exercises
Authors:
Noam Sapiens, NSLS Consulting; Rehovot Israel
Gvaram Haglili, IDF; Rehovot Israel
Ilan Melamed, IDF; Rehovot Israel
Presented at ILSC 2007
The use of laser range finders (LRF) in two sided exercises extensively increases the quality of training. Nevertheless, this use was banned due to safety regulations. We have issued a new set of safety orders to allow the use of LRF in two sided exercises. The orders state the use of appropriate safety equipment (glasses) and the restriction of use of magnifying direct view optics. The considerations that lead to this set of safety orders are not trivial. We have required that the risk o...$28.00
ILSC 2007 Paper #904 (Automatic Aircraft Detection to Support Aircraft Spotters during Outdoor Laser Propagation)
Automatic Aircraft Detection to Support Aircraft Spotters during Outdoor Laser Propagation
Authors:
Brian Smithgall, Image Labs International; Bozeman MT USA
Keith Wilson, Jet Propulsion Laboratory; Pasadena CA USA
Presented at ILSC 2007
Image Labs International, in conjunction with Jet Propulsion Laboratory (JPL) has developed a Sky Sentry system to support safe laser beam transmission through navigable air space in the area around future optical communications ground stations. The system consists of coupled near-field and wide field long wave infrared cameras (to support daytime and nighttime operation) that detect aircraft and other flying objects out to 3.4 miles. Designed to ...$28.00
ILSC 2007 Paper #901 (Laser Operations at the JPL/NASA OCTL Facility)
Laser Operations at the JPL/NASA OCTL Facility
Authors:
Fred Battle, JPL; Pasadena CA USA
Keith Wilson, JPL; Pasadena CA USA
Presented at ILSC 2007
The Jet Propulsion Laboratory (JPL) has built and is now operating a state-of-the-art R&D optical communications telescope laboratory (OCTL). Designed to perform laser beam propagation and free space optical communications experiments, the OCTL will explore technologies and strategies to meet NASA's future needs for high bandwidth communications from Earth-orbiting and deep space probes. Laser beam propagation between ground and space is regulated by several governmental agencies. This is particularly applicable to high-brightness, Q-sw...$28.00
ILSC 2007 Paper #802 (Evaluating Alternate Laser Safety Barrier Materials: A Case Study)
Evaluating Alternate Laser Safety Barrier Materials: A Case Study
Authors:
Thomas Block, Rutgers University; Piscataway NJ USA
Presented at ILSC 2007
There are a wide variety of commercially manufactured laser barrier and curtain materials available to establish controlled areas and to contain any diffuse or reflected beams produced by laser systems. However, there may be circumstances where alternate laser barrier and curtain materials might be acceptable for certain applications and conditions of use instead of commercially available materials. While the ANSI Z136.1 standard establishes protective barrier and curtain performance criteria, it does not define specific testing criteria to evalua...$28.00
ILSC 2007 Paper #702 (Non-Beam Hazards during Laser Machining)
Non-Beam Hazards during Laser Machining
Authors:
Anne Hahn, Laser Zentrum Hannover e.V.; Hannover Germany
Andreas Ostendorf, Laser Zentrum Hannover e.V.; Hannover Germany
Stephan Barcikowski, Laser Zentrum Hannover e.V.; Hannover Germany
Presented at ILSC 2007
Laser material processing is gaining increasing importance in micro and macro machining. During laser processing of polymers, metals, and ceramics dangerous air pollutants have to be considered with regard to occupational safety. Moreover, technical measures for the handling of Laser Generated Air Contaminants (LGACs) often contribute to more than 10 % of the operating costs of laser machinery. Therefore, data ar...$28.00
ILSC 2007 Paper #701 (Laser Non-Beam Hazards - An Overview)
Laser Non-Beam Hazards - An Overview
Authors:
Ben Edwards, Duke University; Chapel Hill NC USA
C. Eugene Moss, Corning Inc.; Corning NY USA
Presented at ILSC 2007
Non-beam hazards (NBH) are those hazards that result from factors other than direct human exposure to a laser beam. NBH can pose a significant safety and regulatory concern. While the focus of the laser safety community has been justifiably dominated by the identification and control of laser beam hazards, safety professional also have an obligation to similarly address NBH. High power laser beams can blind, damage skin, and ignite combustible material, but it is NBH (e.g. electrocution) that have accounted for the fat...$28.00
ILSC 2007 Paper #604 (The Importance of Hands-on Learning)
The Importance of Hands-on Learning
Authors:
Leah Cridlin, Rockwell Laser Industries, Inc.; Cincinnati OH USA
Presented at ILSC 2007
As trainers we must focus on the learners outcome. Hands-on learning allows students to incorporate what is being taught into real world situations, thus allowing them to retain more information. Adult learners need to understand why they are learning a new task/skill. People learn better through active experience than passive listening. People learn better through interacting with one another than working alone. Trends and Causes for Hands on Learning Include: Teaming of employees Many organizations have reduced their managerial hierarchies, empowered their empl...$28.00
ILSC 2007 Paper #601 (Improved Laser Safety Training Materials for University Students)
Improved Laser Safety Training Materials for University Students
Authors:
Johnny Jones, Laser-Professionals Inc.; Los Alamos NM USA
Jay Parkinson, Phoenix Laser Safety; Chandler AZ USA
Pat Harris, Laser-Professionals Inc.; Santa Barbara CA USA
Presented at ILSC 2007
During the last decade one of the groups with the highest number of laser injuries has been student workers. Improved laser safety training can be a significant factor in reducing laser accidents among university students. Until recently suitable laser safety training materials have not been widely available to meet the specific needs of university students working with lasers in research laboratories. T...$28.00
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