Results 321 to 330 of about 306,957 (330)
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MEASUREMENT OF ATTENUATION COEFFICIENTS IN NATURAL WATER COLUMNS

Environmental Toxicology and Chemistry, 1987
Abstract Light scattering and light absorption by particulates and humic substances in natural waters can significantly affect the photoreaction rates of chemicals in aquatic systems. These scattering and absorption processes are quantitatively described by the use of an empirical parameter, the diffuse attenuation coefficient, K.
Doris S. Tse   +2 more
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Linear attenuation coefficients for compensator based imrt

Australasian Physics & Engineering Sciences in Medicine, 2007
With rapid technological improvements in computer driven 3-D radiotherapy treatment planning systems (RTPS) the use of compensating filters for intensity modulated radiation therapy (IMRT) will dramatically increase the ease of treatment. The procedure for commissioning .decimal (Sanford, Florida) compensators involved the measurement of the effective ...
Vinod Nelson   +3 more
openaire   +3 more sources

Profile models of the diffuse attenuation coefficient

Environmental Software, 1992
Abstract Profiles of the downwelling diffuse attenuation coefficient, k, are needed for prediction of performance of electro-optical systems, for phytoplankton research, and for global environmental monitoring. The present work provides models of k profiles given the surface water optics.
openaire   +2 more sources

Photon Attenuation Coefficients of Helium

Journal of Applied Physics, 1970
J. H. McCrary, H. F. Atwater
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X-Ray Attenuation-Coefficient Measurements

Physical Review, 1967
Elizabeth H. Plassmann   +4 more
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