Results 251 to 260 of about 365,633 (275)

Dose conversion coefficients for interventional procedures

Radiation Protection Dosimetry, 2005
Effective dose (E) is a convenient quantity to estimate the stochastic risk of radiation applied to patients in interventional procedures and can be used for optimisation. Relatively long exposure times may cause deterministic effects. Hence it is necessary to know the (maximum local) doses in organs owing to the interventional procedure.
F W, Schultz, J, Zoetelief
openaire   +2 more sources

Internal conversion coefficients for absorbed dose calculations

Physics in Medicine & Biology, 1970
Internal conversion coefficients (K plus L plus M shells) and ratios of internal conversion coefficients (K to L plus M) have been tabulated in a form convenient for calculating absorbed dose from internally administered radioisotopes.
J C, Widman, E R, Powsner
openaire   +2 more sources

ICRP Task Group 95: internal dose coefficients

Annals of the ICRP, 2018
Internal doses are calculated using biokinetic and dosimetric models. These models describe the behaviour of the radionuclides after ingestion, inhalation, and absorption to the blood, and the absorption of the energy resulting from their nuclear transformations.
F, Paquet, J, Harrison
openaire   +2 more sources

Neutron dose coefficients for the lens of the eye

Journal of Radiological Protection, 2021
Abstract The International Commission on Radiation Units and Measurements (ICRU) Report Number 95 (2020 Operational quantities for external radiation exposure ICRU Rep. 95 J. ICRU 20 ) recommends new definitions ffor operational quantities as estimators ...
N E Hertel, K G Veinot, M M Hiller, K F Eckerman   +3 more
openaire   +2 more sources

Reassessment of Tritium Dose Coefficients

2010
Concerns of increased risk from tritium intakes by humans have been claimed in the past years. The arguments concerning radiobiological efficiency assessment, longer retention in human body, and the DNA’s hydration shell are analysed in this paper. A biokinetic model for tritiated water and organically bound tritium retention in human body is used ...
A. Melintescu, D. Galeriu, H. Takeda
openaire   +1 more source

The ICRP Database of Dose Coefficients

Health Physics, 2000
A CDROM database that gives dose coefficients for inhalation and ingestion of over 800 radionuclides of 91 elements. Inhalation dose coefficients are provided for ten aerosol sizes from 0.001 {micro}m to 10 {micro}m AMAD. Effective dose and equivalent dose coefficients are given for ten integration periods form 1 d to 70 y.
openaire   +1 more source

Dependence of sputtering coefficient on ion dose

Radiation Effects, 1977
Abstract The sputtering coefficient of polycrystalline gold bombarded by 10–40 keV Ar+ ions has been measured as a function of total ion dose and shown to exhibit oscillations in magnitude between 30 and 100%. Possible experimental errors which would give rise to such an oscillation have been considered, but it is apparent that these factors are unable
J. S. Colligon, M. H. Patel
openaire   +1 more source

The ICRP CD-ROM of Dose Coefficients

Radiation Protection Dosimetry, 1998
The ICRP Task Group on Dose Calculations has prepared a CD-ROM of dose coefficients for both members of the public and workers. It extends the results given in previous Publications by giving inhalation dose coefficients for ten particle sizes (0.001, 0.003, 0.01, 0.03, 0.1, 0.3, 1, 3, 5, 10 μm AMAD) as well as ingestion coefficients.
A.W. Phipps, T.J. Silk, T.P. Fell
openaire   +1 more source

Relationship between Attenuation Coefficients and Dose-Spread Kernels

Radiation Research, 1988
Dose-spread kernels can be used to calculate the dose distribution in a photon beam by convolving the kernel with the primary fluence distribution. The theoretical relationships between various types and components of dose-spread kernels relative to photon attenuation coefficients are explored.
openaire   +2 more sources

Dose conversion coefficients for partial-fan CBCT scans

SPIE Proceedings, 2017
Due to the increasing number of cone-beam CT (CBCT) devices on the market, reliable estimates of patient doses for these imaging modality is desired. Cone-beam CT devices differ from conventional CT not only by a larger collimation but also by different recording modes.
openaire   +2 more sources