Читать книгу Patty's Industrial Hygiene, Physical and Biological Agents - Группа авторов - Страница 120

To measure broadband optical radiation in a way that is meaningful for assessing health hazards, it is necessary to take account of the spectral distribution of the radiation and apply an appropriate spectral weighting function. This can be done by either (i) using a spectroradiometer, which measures the amount of incident radiation in narrow wavelength bands, then mathematically weighting the measured spectral distribution using the relevant hazard function or (ii) using a broadband radiometer with a detector that has a spectral response function that closely matches the relevant hazard function.

For accurate irradiance or radiant exposure measurements, the input optics of the measurement instrument should have a directional response that is proportional to the cosine of the angle between the normal to the receiving surface and the line of sight from the receiving surface to the radiation source (22, 23).