Request InfoGigahertz-Optik Inc.To enable the total flux measurement of side-emitting fiber optic sources such as those employed in photodynamic therapy, Gigahertz-Optik Inc. has stretched a 30-mm-diameter integrating sphere into a 60-mm-long capsule. The UPK-30S60-L integrating capsule detector features a circular collar baffle and a coating of high-grade optical diffuse material to produce integrating effects that the company says are similar to those from spheres of larger diameters. Gigahertz-Optik's accredited calibration laboratory calibrates the spectral sensitivity of the system in watts per nanometer. 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