photoradiometer

photoradiometer

(fō″tō-rā″dē-ŏm′ĕ-tĕr) [″ + L. radius, ray, + Gr. metron, measure]
A device for determining the ability of ionizing radiation to penetrate substances.
References in periodicals archive ?
The irradiance was measured with a photoradiometer Delta OHM, model HD 9021, Italy.