Results 291 to 300 of about 4,408,475 (358)

Radiation exchange

Applied Optics, 1987
The desirability of including more material on radiation exchange in introductory physics courses is discussed. The theory of radiation exchange is presented along with the development of the concepts of radiance and field of view. A simple lecture demonstration showing that everything is radiating is discussed.
openaire   +2 more sources

Radiation Damping and the Polarization of Fluorescence Radiation

Physical Review, 1934
If the distance between two or more energy levels is comparable to their natural breadth, the levels cease to act independently. The coupling between the levels is then describable by means of a "damping constant matrix." The usual discussions concern themselves with a diagonal damping constant.
Breit, G., Lowen, I. S.
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Absorbed radiation dose in radiation synovectomy

The British Journal of Radiology, 1978
The intra-articular injection of colloids containing β-particle emitting radionuclides has been shown to help in controlling synovial inflammation in a range of joints (Ansell et al., 1963; Grahame et al., 1970; Gumpel, 1973; Menkes et al., 1977), and in the knee Gumpel and Coles (1975) have shown the technique to be the treatment of choice for the ...
C S, Bowring, D H, Keeling
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Radiation and Radiation Disorders

2019
With current technologies, radiation doses associated with exploration and habitation missions to the Moon and Mars may well exceed the limits currently defined for LEO operations. Assessment of the radiation protection needed during interplanetary and remote planetary missions should include consideration of several key technologies, such as ...
Jeffrey A. Jones, Fathi Karouia, Lawrence Pinsky, Octav Cristea   +3 more
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Radiation And Radiation Transport

1996
Abstract This chapter covers the fundamental definitions and laws of thermal radiation, elementary spectroscopy, radiation transport, absorption and scattering by particles. and radiation transport in the presence of scattering particles.
B Lawton, G Klingenberg
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Interaction of hyperthermia and radiation: radiation quality

The British Journal of Radiology, 1981
Cell-survival data were collected to determine the survival response of asynchronous CHO cells subjects to radiation and hyperthermia. The irradiation was at room temperature 100 minutes before exposure to hyperthermia at 42 degrees C. The survival response to the combination of these two agents is expressed by means of a survival surface, a three ...
D D, Loshek, J S, Orr, E, Solomonidis
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RADIATION BIOLOGY: CONCEPTS FOR RADIATION PROTECTION

Health Physics, 2004
The opportunity to write a historical review of the field of radiation biology allows for the viewing of the development and maturity of a field of study, thereby being able to provide the appropriate context for the earlier years of research and its findings.
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Computed tomography--an increasing source of radiation exposure.

New England Journal of Medicine, 2007
D. Brenner, E. Hall
semanticscholar   +1 more source

Aging: a theory based on free radical and radiation chemistry.

Journal of Gerontology, 1956
D. Harman
semanticscholar   +1 more source

Toxicity criteria of the Radiation Therapy Oncology Group (RTOG) and the European Organization for Research and Treatment of Cancer (EORTC)

International Journal of Radiation Oncology, Biology, Physics, 1995
J. Cox, J. Stetz, T. Pajak
semanticscholar   +1 more source