SensorPhysics offers two types of materials for ultraviolet beam measurement:

UVSC-200 SensorFilm are 8x10 inch sheets of polyester coated with a thin layer of polymer. This polymer turns blue on exposure to UV beams from 220-320nm. The color change is instant and irreversible. No development is required. Long term (several days) exposure to fluorescent light and outdoor UV exposure will also cause the polymer to change color. The effective grain size is about 1 um.

Quantitative Data Analysis

The FilmScan software allows each gray scale value of the image to be assigned a false color. This makes it easy to see qualitative differences in exposure uniformity. A red color represents a greater exposure. Quantitative analysis includes beam diameters, uniformity, 3D display, X and Y profiles, and average profile plots of intensity of UV exposure versus position on the beam. Images are saved in TIFF and BMP formats and data are exported via the Windows clipboard and as ASCII data files. Windows (3.11, 95, 98, NT, 2000 based) software is provided. A lookup table is provided to allow the Optical Density (OD) of the film to be converted to mJ/cm2. This converts the XY plots to mJ/cm2.

FilmReaders

To obtain qualitative and quantitative data from the SensorCards we offer a digitizing system (FilmReader) based on an illuminating light box, CCD camera and lens. The precise configuration of the hardware depends on the image size and required spatial resolution. To process the information we offer the FilmScan software and frame grabber board. This is available for both desktop (FS-2000) and notebook (FS-2000U) computers operating under the Windows 95, 98, 2000 and NT operating systems. A variety of light box and microscope systems are offered for SensorCard reading.

Contact SensorPhysics for specific information.

See the LaserWave section for spectrometers to measure UV beams.