Request InfoMKS Ophir, Light & MeasurementThe Model 10K-W thermopile surface absorber head from Ophir Optronics Inc. measures YAG and CO2 lasers at up to 10,000 W without damage or changes in calibration. The water-cooled device has a damage threshold of 10 kW/cm2 power density. The company says the power head is based on a proprietary technology that spreads the beam over a large area to avoid damage to the thermopile sensor. 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