Evaluation Of Organ Dose Based On Patient Data In East Asian Descent Pediatric Head Ct Examinations.

abstract：:Some data were derived using recent sophisticated methods to rapidly convert specific activity of induced 24Na to average dose over a whole body in criticality accidents. Monte Carlo calculations using the MCNP-4B code were performed to study energy spectra of neutrons and gamma rays for some criticality systems with ...

journal_title：Radiation protection dosimetry

authors： Takahashi F,Endo A,Yamaguchi Y

更新日期：2003-01-01 00:00:00

abstract：:In the framework of the ORAMED project (Optimization of RAdiation protection for MEDical staff), funded by the European Union Seventh Framework Programme, different studies were aimed at improving the quality of radiation protection in interventional radiology and nuclear medicine. The main results of the project were...

journal_title：Radiation protection dosimetry

authors： Gualdrini G,Bordy JM,Daures J,Fantuzzi E,Ferrari P,Mariotti F,Vanhavere F

更新日期：2013-05-01 00:00:00

abstract：:In environmental radiation monitoring, the time-variable natural gamma radiation background complicates the nuclide identification and analysis of a gamma spectrum. A full spectrum analysis based on the noise adjusted singular value decomposition method for the description of the time-variable background and adjustmen...

journal_title：Radiation protection dosimetry

authors： Reinhardt S

更新日期：2014-08-01 00:00:00

abstract：:A simple hemispherical phantom has been designed and prepared for the EURADOS intercomparison exercise on (241)Am activity determination in the skull (2011-13). The phantom consists of three parts that substitute bone and soft tissues. (241)Am is deposited on the surfaces of the bone-substituting part. The design and ...

journal_title：Radiation protection dosimetry

authors： Vrba T,Malátová I,Fojtík P,Fülöp M,Ragan P

更新日期：2014-01-01 00:00:00

abstract：:Neutron survey instruments have been exposed at all the measurement locations used in the EVIDOS project. These results have an important impact in the interpretation of the results from the project, since operationally the survey instrument will be used for an initial assessment of and routine monitoring of the ambie...

journal_title：Radiation protection dosimetry

authors： Tanner RJ,Bolognese-Milsztajn T,Boschung M,Coeck M,Curzio G,d'Errico F,Fiechtner A,Hager LG,Hussien M,Kyllönen JE,Lacoste V,Lindborg L,Luszik-Bhadra M,Molinos C,Reginatto M,Schuhmacher H,Vanhavere F

更新日期：2007-01-01 00:00:00

abstract：:It is well known that there are great variations in radon concentrations in the soil gas on building sites. The concentration may sometimes vary by more than two orders of magnitude. The tectonic structure of the bedrock is one of the factors that influence the intensity of the radon outflow. The simple ARES geophysic...

journal_title：Radiation protection dosimetry

authors： Thinova L,Fronka A,Rovenska K

更新日期：2011-05-01 00:00:00

abstract：:The ICRP Publication 66 Human Respiratory Tract Model (HRTM) has been applied to calculate dose coefficients and bioassay functions using default values of parameters relating to the material and the subjects. The ICRP Task Group on Internal Dosimetry (INDOS) has developed a guidance document on application of the HRT...

journal_title：Radiation protection dosimetry

authors： Bailey MR,Ansoborlo E,Guilmette RA,Paquet F

更新日期：2003-01-01 00:00:00

abstract：:A novel single cell irradiation system using carbon nanotube (CNT) based field emission technology is proposed. The system can produce electron microbeam at a large range of pulsation frequencies and dose rates with energy between 20 and 60 keV. Different from any existing single beam microbeam device, the CNT-based s...

journal_title：Radiation protection dosimetry

authors： Chang S,Zhang J,Bordelon D,Schreiber E,Cox A,Zhou O

更新日期：2006-01-01 00:00:00

abstract：:(238)U, (232)Th, (222)Rn and (220)Rn concentrations were measured inside various Moroccan black soap samples widely used by the Moroccan population in traditional baths (Hammans) by using both CR-39 and LR-115 type II solid state nuclear track detectors. The measured (238)U, (232)Th, (222)Rn and (220)Rn concentrations...

journal_title：Radiation protection dosimetry

authors： Misdaq MA,Outeqablit K

更新日期：2010-12-01 00:00:00

abstract：:Radon activity concentrations have been measured in 53 from a total of 66 public primary schools throughout of Patras, Greece, during December 1999 to May 2000 using solid-state nuclear track detectors (LR-115 II). The indoor radon levels in the classrooms were generally low, ranging from 10 to 89 Bqm(-3). The mean (a...

journal_title：Radiation protection dosimetry

authors： Papaefthymiou H,Georgiou CD

更新日期：2007-01-01 00:00:00

abstract：:Decommissioning of nuclear building structures usually leads to large amounts of low-level radioactive waste. Using a reliable method to determine the contamination depth, it is indispensable prior to the start of decontamination works and for minimising the radioactive waste volume and the total workload. This paper ...

journal_title：Radiation protection dosimetry

authors： Dolniak J,Lištjak M,Slaninka A,Nečas V

更新日期：2019-12-31 00:00:00

abstract：:In the neonatal intensive care units (NICU), premature new-borns may be exposed to important doses. Because of their increased radiosensitivity and longer life expectancy, dose optimisation is of importance. The present study aimed at evaluating the dose of the most common radiographs in the Belgian NICU. Entrance sur...

journal_title：Radiation protection dosimetry

authors： Dabin J,Struelens L,Vanhavere F

更新日期：2014-01-01 00:00:00

abstract：:The calibration of electronic personal dosemeters at the Portuguese ionizing radiation metrology laboratory uses the standard IEC 61526 for calibration methodology. This standard describes the irradiation geometry for testing and indicates that the standard ISO 4037-1, 2, 3 and 4 should be used. The ISO 4037 establish...

journal_title：Radiation protection dosimetry

authors： Cardoso J,Santos L,Carvalhal G,Oliveira C

更新日期：2016-09-01 00:00:00

abstract：:Accident dosimetry aims to evaluate the unplanned radiation doses delivered to individuals through one of the objects exist in the area of the accident. The gamma dose response of free radicals generated in irradiated aspartame tablets and its usability for emergency dosimetry was studied. EPR spectra of unirradiated ...

journal_title：Radiation protection dosimetry

authors： Maghraby A,Salama E

更新日期：2010-06-01 00:00:00

abstract：:Expansion of accelerator technologies into different application areas brings the need for neutron-field measurements in their vicinity. The measurements of neutron energy spectra and neutron dose rates can be done with the aid of neutron multisphere spectrometers with passive neutron detectors. In addition to the usu...

journal_title：Radiation protection dosimetry

authors： Vlk P,Pavlovic M

更新日期：2018-04-01 00:00:00

abstract：:We evaluated the performances of angiographic units equipped with a flat-panel (FP) detector and image intensifier (II) charge-coupled device (CCD) in the Interventional Cardiology (IC) Department. Entrance dose rate and dose per image, along with the dose at the II level were measured using 2 mm copper sheets to simu...

journal_title：Radiation protection dosimetry

authors： Tsapaki V,Kottou S,Kollaros N,Kyriakidis Z,Neofotistou V

更新日期：2005-01-01 00:00:00

abstract：:To study the radiation environment inside the International Space Station, solid state nuclear track detector stacks were used. Within the BRADOS experiments, Phase 1, seven stacks were exposed at different locations of the Russian segment 'Zvezda' for 248 days in 2001. It was supposed that the radiation field inside ...

journal_title：Radiation protection dosimetry

authors： Pálfalvi JK,Akatov Y,Szabó J,Sajó-Bohus L,Eördögh I

更新日期：2006-01-01 00:00:00

abstract：:The connection between recorded volumetric CT dose index (CTDI vol) and determined mean fetal dose (Df) was examined from metal-oxide-semiconductor field-effect transistor dose measurements on an anthropomorphic female phantom in four stages of pregnancy in a 64-slice CT scanner. Automated tube current modulation kept...

journal_title：Radiation protection dosimetry

authors： Kelaranta A,Kaasalainen T,Seuri R,Toroi P,Kortesniemi M

更新日期：2015-07-01 00:00:00

abstract：:The Techa river region was highly contaminated due to radioactive releases from a nuclear production facility in the period from 1949 to 1956. The inhabitants of the upper Techa river settlements received significant doses of external radiation. The majority of the houses in the upper Techa river villages were demolis...

journal_title：Radiation protection dosimetry

authors： Bougrov NG,Baturin VA,Goeksu HY,Degteva MO,Jacob P

更新日期：2002-01-01 00:00:00

abstract：:Regional cooperation in radioactive waste management (RWM) in the Asian and Oceanic countries has been successfully developing for more than 20 y. At present, the Asian and Oceanic countries recognise that there are several projects under the regional cooperation, such as the Forum for Nuclear Cooperation in Asia (FNC...

journal_title：Radiation protection dosimetry

authors： Ya-anant N,Thiangtrongjit S

更新日期：2011-07-01 00:00:00

abstract：:This paper describes the sequence of events, medical aspects and dose estimations for two radiographers and their driver who were seriously exposed to an iridium-192 industrial radiography source that became detached from its wind-out cable. The men came to medical attention about 1 month later by which time all three...

journal_title：Radiation protection dosimetry

authors： Sevan'kaev AV,Lloyd DC,Edwards AA,Moquet JE,Nugis VY,Mikhailova GM,Potetnya OI,Khvostunov IK,Guskova AK,Baranov AE,Nadejina NM

更新日期：2002-01-01 00:00:00

abstract：:Luminescence and optical features of chemical vapour deposition (CVD) diamond have been studied in view of the potential application of this material in ionising radiation dosimetry field. For this purpose, thermally stimulated luminescence (TSL) and optically stimulated luminescence (OSL) techniques have been used. A...

journal_title：Radiation protection dosimetry

authors： Benabdesselam M,Iacconi P,Trinkler L,Berzina B,Butler JE

更新日期：2006-01-01 00:00:00

abstract：:An investigation of the simultaneous unfolding of data from neutron spectrometers using the UMG codes MAXED and GRAVEL has been performed. This approach involves combining the data from the spectrometers before unfolding, thereby performing a single combined unfolding of all the data to yield a final combined spectrum...

journal_title：Radiation protection dosimetry

authors： Roberts NJ

更新日期：2007-01-01 00:00:00

abstract：:A high-end drum film digitiser (Tango, Germany) and a calibrated linear microdensitometer developed by PTB were used to assess the modulation transfer function (MTF) and the noise power spectra (NPS) of 3 mammographic screen film systems at optical density levels of 0.8, 1.5 and 2.5. The use of a drum scanner to asses...

journal_title：Radiation protection dosimetry

authors： Verdun FR,Pachoud M,Bergmann D,Buhr E

更新日期：2005-01-01 00:00:00

abstract：:Occupational radiation exposure is a hazard that should be avoided or at least minimised. This study aimed to evaluate the radiation exposure of nuclear medicine department employees monitored during the 1991-2007 period, and to investigate the relationship between the annual effective doses of the personnel and the n...

journal_title：Radiation protection dosimetry

authors： Piwowarska-Bilska H,Birkenfeld B,Listewnik M,Zorga P

更新日期：2010-08-01 00:00:00

abstract：:In the event of a criticality accident, not only the maximal doses received by the victims must be determined but it is also crucial to evaluate the doses to the different organs. With a neutron component, morphology is a key parameter in the organ dose calculation. As the simulation tools can be time consuming to pro...

journal_title：Radiation protection dosimetry

authors： Chevallier MA,Pontier JB,Morin H,Duluc M,Evo S,Letang E,Trompier F

更新日期：2020-11-06 00:00:00

abstract：:Based on the non-intersection model of cylindrical capillaries, the mean radius of the pores of some soils and building materials are estimated. In size, the above-mentioned radii are usually of the order of the free path of gas molecules at atmospheric pressure. A review of pore size distribution data also reveals th...

journal_title：Radiation protection dosimetry

authors： Minkin L

更新日期：2003-01-01 00:00:00

abstract：:The relation of radiation exposure (dose) with acute radiation syndrome (ARS) depends on many factors. In this overview, we reconsider (1) radiation exposure characteristics (e.g. radiation quality, fractionation, dose rate, partial/total body irradiation) and (2) biological processes (e.g. radiosensitivity, cell cycl...

journal_title：Radiation protection dosimetry

authors： Port M,Majewski M,Abend M

更新日期：2019-12-31 00:00:00

abstract：:On the occasion of the 20th anniversary of the Chernobyl accident an attempt has been made to evaluate the impact of the Chernobyl accident on the global burden of human cancer in Europe. This required the estimation of radiation doses in each of the 40 European countries. Dose estimation was based on the analysis and...

journal_title：Radiation protection dosimetry

authors： Drozdovitch V,Bouville A,Chobanova N,Filistovic V,Ilus T,Kovacic M,Malátová I,Moser M,Nedveckaite T,Völkle H,Cardis E

更新日期：2007-01-01 00:00:00

abstract：:The goal of this study was to develop a method to quantitatively assess the structural shielding performance of computed tomography (CT) rooms in Switzerland. The method was based on the comparison between calculated maximum allowed ambient dose rate (DR) and measured ambient DR in adjacent spaces. If the measured DR ...

journal_title：Radiation protection dosimetry

authors： Treier R,Landis R,Theiler T,Stritt N,Trueb PR,Baechler S

更新日期：2017-04-25 00:00:00