Lyon witness board (LWB) detector to evaluate thermal energy insults to skin and cornea

Abstract

Integrating radiometric and photometric instrumentation is available to measure the optical radiation from a single flash from a small source. However, the use of this delicate opto-electronic instrumentation in harsh explosive environments with intense acoustic or electromagnetic energy often introduces greater uncertainties, and these instruments are not suited to measuring large sources. Such measurements can be less reliable than data obtained by using wide-angle passive detectors and other evaluation techniques. Figure 1 shows a hostile environment where the LWB detector succeeded in assessing radiant and non-radiant thermal energy hazards to personnel. The LWB detector has also been adapted to test for industrial laser reflections thought possible over wide angles.Integrating radiometric and photometric instrumentation is available to measure the optical radiation from a single flash from a small source. However, the use of this delicate opto-electronic instrumentation in harsh explosive environments with intense acoustic or electromagnetic energy often introduces greater uncertainties, and these instruments are not suited to measuring large sources. Such measurements can be less reliable than data obtained by using wide-angle passive detectors and other evaluation techniques. Figure 1 shows a hostile environment where the LWB detector succeeded in assessing radiant and non-radiant thermal energy hazards to personnel. The LWB detector has also been adapted to test for industrial laser reflections thought possible over wide angles.