Validation and verification of the laser range safety tool (LRST)

Paul K. Kennedy; Kenneth S. Keppler; Robert J. Thomas; Garrett D Polhamus; Peter Alan Smith; Javier O. Trevino; Daniel V. Seaman; Robert A. Gallaway; Gregg A. Crockett

doi:10.1117/12.476899

20 June 2003 Validation and verification of the laser range safety tool (LRST)

Paul K. Kennedy, Kenneth S. Keppler, Robert J. Thomas, Garrett D Polhamus, Peter Alan Smith, Javier O. Trevino, Daniel V. Seaman, Robert A. Gallaway, Gregg A. Crockett

Author Affiliations +

Proceedings Volume 4953, Laser and Noncoherent Light Ocular Effects: Epidemiology, Prevention, and Treatment III; (2003) https://doi.org/10.1117/12.476899
Event: Biomedical Optics, 2003, San Jose, CA, United States

Abstract

The U.S. Dept. of Defense (DOD) is currently developing and testing a number of High Energy Laser (HEL) weapons systems. DOD range safety officers now face the challenge of designing safe methods of testing HEL's on DOD ranges. In particular, safety officers need to ensure that diffuse and specular reflections from HEL system targets, as well as direct beam paths, are contained within DOD boundaries. If both the laser source and the target are moving, as they are for the Airborne Laser (ABL), a complex series of calculations is required and manual calculations are impractical. Over the past 5 years, the Optical Radiation Branch of the Air Force Research Laboratory (AFRL/HEDO), the ABL System Program Office, Logicon-RDA, and Northrup-Grumman, have worked together to develop a computer model called teh Laser Range Safety Tool (LRST), specifically designed for HEL reflection hazard analyses. The code, which is still under development, is currently tailored to support the ABL program. AFRL/HEDO has led an LRST Validation and Verification (V&V) effort since 1998, in order to determine if code predictions are accurate. This paper summarizes LRST V&V efforts to date including: i) comparison of code results with laboratory measurements of reflected laser energy and with reflection measurements made during actual HEL field tests, and ii) validation of LRST's hazard zone computations.

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Paul K. Kennedy, Kenneth S. Keppler, Robert J. Thomas, Garrett D Polhamus, Peter Alan Smith, Javier O. Trevino, Daniel V. Seaman, Robert A. Gallaway, and Gregg A. Crockett "Validation and verification of the laser range safety tool (LRST)", Proc. SPIE 4953, Laser and Noncoherent Light Ocular Effects: Epidemiology, Prevention, and Treatment III, (20 June 2003); https://doi.org/10.1117/12.476899

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KEYWORDS

Laser safety

Safety

Bidirectional reflectance transmission function

Reflectivity

Data modeling

Databases

Hazard analysis

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