radiant exposure


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radiant exposure

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The wavelength of radiation emitted by the device was 662 nm, and the setup irradiance was 0.050 W/[cm.sup.2] for all radiant exposure doses.
Borra) collected measures of effective radiant exposure (Heff) in a group of fishermen working on 3 fishing boats, different for dimension and protective equipment, sailing in the Italian Mediterranean sea in a region included between latitudes 41-43'N.
(17) There are two requirements for ocular UVR exposure within an eight-hour period: instantaneous spectrally weighted limit; and total UVA radiant exposure limit.
We performed several partial treatments with a 532 nm KTP laser (4 mm spot size, 20 J/[cm.sup.2] radiant exposure, 15 ms pulse width) with excellent clearance (Fig.
The radiant exposure needed to create damage is greater for the larger spot but results in a more exaggerated disruptive event in comparison to the smaller retinal beam size.
The first consideration for calculating radiant exposure of the device is the difference between global and direct normal irradiance.
Photo-activation was performed using different times to maintain the radiant exposure (Table 1).
Hence, a beam's power (watts), exposure duration (seconds), and irradiance diameter or spot size (in [cm.sup.2]) must be known to determine the exposure dose or radiant exposure (Joules/[cm.sup.2]).
The calculations predicted a service life of 332 MJ/[m.sup.2] total ultraviolet radiation (TUVR) in south Florida and a service life of 408 MJ/[m.sup.2] TUVR in Arizona with service life being defined as the amount of UV radiant exposure before the polycarbonate yellowed to 6 delta Y.I.
High UV irradiance accelerated exposures were carried out in the NIST 2 m integrating sphere-based weathering device, referred to as SPHERE (Simulated Photodegradation via High Energy Radiant Exposure).
Such a device has been built at NIST (i.e., the NIST SPHERE: Simulated Photodegradation via High Energy Radiant Exposure) [29-31].
These units reportedly use the latest water-cooled xenon-arc lamps to deliver consistent amounts of radiant exposure. Easily interchangeable glass filters tailor the light spectrum to match sunlight conditions in particular end-use environments.