Photon prices itself on the reliability of our instruments, which is the reason BeamScan has become the industry standard for beam diagnostics. Our proprietary, phase-locked-loop (PLL) design ensures built-in calibration, and is why there are units built in 1984 that continue to provide accurate beam width values! The DC motor used in BeamScan in designed to last indefinitely. It's rated at 10,000 rpm, but operates at only 600 rpm (10 Hz). The motor is so smooth and quiet that people standing near the operating instrument have asked, "What type of array detector do you use?" (Array detectors are CCD or CID devices that pick up the entire beam without mechanical motion; they typically lack resolution compared to scanning aperture instruments).

Since the exact effects of time and operating environments are unknown, Photon offers a comprehensive calibration service during which we determine a unitÕs reliability. Our factory-trained technicians will compare your instrument to PhotonÕs standards at the time of its manufacture, verifying the beam diameter readings and tracking performance over time. During the optional calibration procedure we:

• Clean the scan head aperture (dust and environmental contaminates affect performance)
• Check for uniformity of the scan head detector
• Perform minor electronics upgrade and repair.
• Place a calibration service label on the instrument to indicate when the next service is due.
• Provide a "Certificate of Calibration" verifying the performance of your BeamScan.

Scan Head of BeamScan Profiler

When you purchase a laser beam profiler, such as BeamScan, from Photon, we want you to feel confident that it was the right de for many years to come. Technical assistance will always be as easy as calling 1.800.3PHOTON (U.S. only). We continue to service units manufactured when Photon began in 1984, and we are committed to being around a long time to service your instrument - should you require it.