Читать книгу Patty's Industrial Hygiene, Physical and Biological Agents - Группа авторов - Страница 121

Double‐monochromator spectroradiometers are considered the “gold standard” for measurement of the spectral distribution of optical radiation. Unfortunately, double‐monochromator spectroradiometers are not suited to field industrial hygiene measurements because of their large size, delicate components, and time necessary to scan through the entire spectral range of interest in narrow bandwidth steps. Single‐monochromator diode array spectroradiometers (SMDASs) are portable and relatively inexpensive instruments that can measure radiation in multiple narrow bandwidths simultaneously. Performance criteria have been established for SMDASs for the measurement of solar UV (22). Numerical corrections for stray light may be applied to reduce spectral measurement error (24, 25), but in some cases, such corrections may yield anomalous results on the UV region (25, 26). Corrected SMDASs should be validated against double‐monochromator spectroradiometers using sources that are representative of those in the workplace (24).