Results 261 to 270 of about 3,965,960 (305)

Exposure Dose Measurements

Physics in Medicine and Biology, 1962
Discussion is given on structures put upon a previous article, Greene, Massey, and Meredith, Phys. Med. Biol., 6: exposure dose in a phantom, by others. Discrepancies are noted and evaluated. (P.C.H.)
W J, MEREDITH, J B, MASSEY, D, GREENE
  +6 more sources

Doses from radiation exposure

Annals of the ICRP, 2012
Practical implementation of the International Commission on Radiological Protection's (ICRP) system of protection requires the availability of appropriate methods and data. The work of Committee 2 is concerned with the development of reference data and methods for the assessment of internal and external radiation exposure of workers and members of the ...
Menzel HG, Harrison JD
openaire   +3 more sources

Exposure and dose in panoramic radiology

Medical Physics, 1998
Panoramic radiology entrance skin exposure (ESE) was measured for a Siemens Orthopantomograph 10 E using a thimble chamber and TLDs. Thimble chamber measurements are shown to be inaccurate for the moving, narrow beam panoramic scan geometry due to partial volume and partial charged‐particle equilibrium effects.
openaire   +2 more sources

Robustness of modelled ozone exposures and doses

Environmental Pollution, 2007
This study evaluates the robustness of the AOTX and AF(st)Y indices for assessing the ozone-induced risk to vegetation. These indices represent the accumulated concentration and stomatal flux, respectively, above a threshold value. The robustness is expressed as the sensitivity to changes in inputs and the uncertainty due to input errors.
Gerosa, Giacomo Alessandro, Tuovinen, Juha Pekka, Simpson, Dave, Emberson, Lisa, Ashmore, Mike   +4 more
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Exposure Dose Measurements in Megavoltage Therapy

Physics in Medicine and Biology, 1962
Arguments are presented to show that an ionization chamber in a scattering medium measures the exposure dose at its own center provided it is at a depth sufficient to be on the exponential part of the depth dose curve. The minimum depth for the establishment of electron equilibrium is defined.
D, GREENE, J B, MASSEY, W J, MEREDITH
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Biomarkers of Exposure and Dose: State of the Art

Radiation Protection Dosimetry, 2001
Biomarkers provide methods to measure changes in biological systems and to relate them to environmental insults and disease processes. Biomarkers can be classified as markers of exposure and dose, markers of sensitivity, and markers of disease.
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Dose level of occupational exposure in China

Radiation Protection Dosimetry, 2007
This paper discusses the dose level of Chinese occupational exposures during 1986-2000. Data on occupational exposures from the main categories in nuclear fuel cycle (uranium enrichment and conversion, fuel fabrication, reactor operation, waste management and research activity, except for uranium mining and milling because of the lack of data), medical
Yuan, Tian, Liang'an, Zhang, Yongjian, Ju   +2 more
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Statistical models for low dose exposure

Mutation Research - Fundamental and Molecular Mechanisms of Mutagenesis, 1998
Extrapolation of health risks from high to low doses has received a considerable amount of attention in carcinogenic risk assessment over decades. Fitting statistical dose-response models to experimental data collected at high doses and use of the fitted model for estimating effects at low doses lead to quite different risk predictions. Dissatisfaction
L, Edler, A, Kopp-Schneider
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Low-Dose Radiation Exposure

Science, 1990
R W, Miller, R L, Brent
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