Results 161 to 170 of about 3,468 (205)

Microdosimetry of Alpha-irradiated Lung

Health Physics, 1984
Measurements have been made on the fractions of tissue affected and distributions of energy deposited when rat and human lung are irradiated by alpha particles. Thin sections of alveolar tissue were examined in an image analyser and an imaginary 239PuO2 particle was placed in an alveolar sac.
J A, Simmons, S R, Richards
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Microdosimetry of Internal Sources

Radiation Research, 1977
ROESCH, W. C. Microdosimetry of Internal Sources. Radiat. Res. 70, 494-510 (1977). Microdosimetry has been limited to irradiations characterized by uniform probabilities of charged-particle production. New methods are presented here for dealing with particles emitted by radionuclides embedded in the irradiated medium; these particles seldom emerge ...
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Microelectronics and microdosimetry

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1987
The dimensions of electronic components have been steadily decreasing until radiation-sensitive sites are now at the micrometer level. Reduced size generally has corresponded to improved performance and increased computing speed; however, it also resulted in an unanticipated increase in vulnerability to radiation.
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Microdosimetry

International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine, 1970
V G, Balamutov, P N, Belonofiĭ, V G, Videnskiĭ, V I, Ivanov, B M, Isaev, V G, Kolotilova, A N, Krongauz   +6 more
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Proton Microdosimetry

Radiology, 1969
J W, Hilbert, N A, Baily
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Radiobiological Challenges Posed by Microdosimetry

Health Physics, 1996
The inapplicability of the concept of dose to cellular and subcellular structures is the paradox that has driven the development of radiation biophysics. It remains a central problem which necessitates the use of microdosimetry in radiobiology, radiation protection, and the clinical applications of ionizing radiation.
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Microdosimetry of Plutonium in Lungs

Health Physics, 1983
Chord length distributions for alveolar cells and cell nuclei were determined by superimposing computer-generated alpha-particle tracks on magnified images of randomly selected rat lung sections using the Quantitative Television Microscope. Specific energy distributions were then calculated by applying image analysis techniques.
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Microdosimetry of internally deposited radionuclides

The International Journal of Applied Radiation and Isotopes, 1982
Microdosimetry uses the physical interaction of ionization events with cellular targets and the modification of the direct effects by biological processes to explain the effects of radiation. Knowledge of sensitive sites inside cells, of microscopic distributions of internally deposited radionuclides, and distribution of energy deposition contribute to
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Microdosimetry: Reflections on Harald Rossi

Radiation Protection Dosimetry, 2002
This and twelve previous Symposia reflect the evolution of microdosimetry, a field of research that has determined major new developments in radiation research, radiation protection, and radiology during the past four decades. The concepts of microdosimetry and its techniques were developed almost single handedly by H. H. Rossi.
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Microdosimetry

International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine, 1968
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