Press release submitted on behalf of Gighertz-Optik.
Gigahertz-Optik, Amesbury, Massachusetts, a manufacturer of innovative UV-VIS-NIR optical radiation measurement instrumentation for specification critical industrial, medical and research applications, introduced a line of UV cylindrical irradiance detectors for the measurement of effective cylindrical ultraviolet irradiance applied in UV curing and UVC germicidal applications whether lamp or LED based source types. Its cylindrical diffuser input optic is 6 mm in diameter & 9 mm long. Optical radiation is received over 360 degrees around the receiver. Its low and small profile allow it to be inserted into flood and spot UV curing apparatus configured to deliver UV in ring or 3D immersive set-ups. Used in a ‘dip stick’ fashion, the RCH-XXXc with the rigid fiber light guide could be used to map the UV emittance across a belt or around a chamber for example for profiling or uniformity purposes.
The 254 nm version of the RCH-XXXc probe would be most useful in UVC germicidal devices like those made for disinfecting toothbrushes, dental or medical tools that are inserted into the fully immersive UVC environment.
The RCH-XXXs series cylindrical UV detectors are configured based on the particular light source employed. For example, for low pressure Hg lamps the detector would be designed and traceably calibrated for use at 254 nm. Or the detector may be set-up for and calibrated at several key LED wavelengths with the user selecting the appropriate LED wavelength by menu function on the radiometer used.
The measurement range of the radiometer will depend on the detector specifications and those of the particular meter. For example, the X1 Radiometer with RCH-122s for 254 nm will measure from an NEI of 1.2 μW/cm2 to max 50 W/cm2.
The detectors can be used in combination with any Gigahertz-Optik filter radiometer. For the widest dynamic range the P-21 Radiometer is recommended. Adaptation of the detector to work with existing radiometers should be discussed with the factory.
All RCH type detectors are uniquely designed to withstand and remain stable in high intensity UV and heat environments. The sensitive components (bandpass filter and photodiode) are encapsulated upstream from the irradiation zone. A light guide connects the filter detector capsule to the input optic directing the optical radiation piped through to it at much lower intensity. Note that both rigid and flexible fiber light guide versions are available.
For more information, visit www.gigahertz-optik.com.
