Comparison of two JAERI phantoms and the problems discovered.

abstract：:Current concerns focus on the high doses encountered in computed tomography (CT) examinations as they are extending towards younger and more radiosensitive patients. Previous work produced conversion coefficients for effective dose (E) from dose-length product (DLP) for four anatomical body regions applicable to any p...

journal_title：Radiation protection dosimetry

authors： Dougeni E,Chapple CL,Willis J,Panayiotakis G

更新日期：2011-09-01 00:00:00

abstract：:The effect of an automatic wedge filter on photon and photoneutron spectra of a medical linac was evaluated using the Monte Carlo method. The head of an Elekta SL75/25 was simulated using the MCNPX Monte Carlo code. The photon and photoneutron spectra for open and wedged beams were calculated at the isocentre with a s...

journal_title：Radiation protection dosimetry

authors： Ghavami SM,Mesbahi A,Mohammadi E

更新日期：2010-02-01 00:00:00

abstract：:After an explosion of a radiological dispersal device, decision-makers need to implement countermeasures as soon as possible to minimise the radiation-induced risks to the population. In this work, the authors present a tool, which can help providing information about the approximate size of source term and radioactiv...

journal_title：Radiation protection dosimetry

authors： Urso L,Kaiser JC,Woda C,Helebrant J,Hulka J,Kuca P,Prouza Z

更新日期：2014-03-01 00:00:00

abstract：:Multi-element thermoluminescence dosemeters (TLD), such as the Panasonic UD-809, are used in personal dosimetry. The Panasonic UD-809 dosemeter consists of one gamma sensitive and three neutron sensitive TLD elements with different filter materials. In this work, the neutron energy responses (the number of (n,alpha) r...

journal_title：Radiation protection dosimetry

authors： Veinot KG,Hertel NE

更新日期：2001-01-01 00:00:00

abstract：:In this study, the characterisation of radiation exposure of paediatric patients in computerised tomography (CT) procedures was performed for a Portuguese hospital. Dosimetric data and technical parameters used for CT examinations were retrieved, compiled and analysed over a period of 1 y. Five paediatric age groups w...

journal_title：Radiation protection dosimetry

authors： Neves A,Nunes A,Rufino M,Madeira P,Vaz P,Pascoal A

更新日期：2012-09-01 00:00:00

abstract：:The personnel dosimetry department of the Greek Atomic Energy Commission (GAEC) assures the individual monitoring of almost 8000 occupationally exposed workers. Thermoluminescence dosimetry systems will replace the existing photographic dosimetry system for the individual monitoring with the joint support of IAEA and ...

journal_title：Radiation protection dosimetry

authors： Carinou E,Drikos G,Hourdakis C,Hyvönen H,Kamenopoulou V

更新日期：2001-01-01 00:00:00

abstract：:This study characterises and evaluates an Al2O3:C-based optically stimulated luminescent dosemeter (OSLD) system, commercially known as the nanoDot™ dosemeter and the InLight® microStar reader, for personal and in vivo dose measurements in diagnostic radiology. The system characteristics, such as dose linearity, reade...

journal_title：Radiation protection dosimetry

authors： Wong JHD,Bakhsh M,Cheah YY,Jong WL,Khor JS,Ng KH

更新日期：2019-12-31 00:00:00

abstract：:The entrance surface dose (ESD) (skin dose) and its variation due to overlapping radiation fields at mammography have been experimentally investigated on patients during two-view mammography screening examinations of both breasts and on phantoms of silicon gel. Measurements were done using multiple thermoluminescence ...

journal_title：Radiation protection dosimetry

authors： Adliene D,Cibulskaite I,Laurikaitiene J,Adlys G

更新日期：2010-04-01 00:00:00

abstract：:Knowing the concentration of 226Ra in soil and of 222Rn in soil gas is important for the analysis of indoor radon data and the prediction of radon-prone areas. Except for soil Rn in Ardenne, the data concerning these two radionuclides in Belgian soils are very scarce. In the context of Master theses and international ...

journal_title：Radiation protection dosimetry

authors： Licour C,Tondeur F,Gerardy I,Alaoui NM,Dubois N,Perreaux R,Gerardy N,Christiaens D

更新日期：2017-11-01 00:00:00

abstract：:Measurements were made according to IEEE standard 644-1994 at a height of 1 m above floor level. It is concluded that none of the measurements exceeded the ACGIH threshold limit value. Among all control rooms the highest measured density amount is 0.69 μT in the control room of Ozgol substation and the lowest is 0.2 μ...

journal_title：Radiation protection dosimetry

authors： Fard MS,Nasiri P,Monazzam MR

更新日期：2011-06-01 00:00:00

abstract：:Absorbed dose and average linear energy transfer (LET) were assessed by means of (7)LiF:Mg,Ti (TLD-700) thermoluminescent (TL) detectors for different panels on-board the Russian Segment of the International Space Station in the timeframe between March and November 2002 (233 d). A technique is presented to correct the...

journal_title：Radiation protection dosimetry

authors： Hajek M,Berger T,Fugger M,Fürstner M,Vana N,Akatov Y,Shurshakov V,Arkhangelsky V

更新日期：2006-01-01 00:00:00

abstract：:In this research, the effect of magnesium (Mg), copper (Cu) and phosphorus (P) impurities on dosimetry response of LiF:Mg,Cu,P phosphors is studied experimentally and by the simulation procedure. In the experimental procedure, LiF:Mg,Cu,P phosphors in the powder form were synthesised by chemical co-precipitation metho...

journal_title：Radiation protection dosimetry

authors： Mohammadi K,Khayat O,Afarideh H

更新日期：2016-01-01 00:00:00

abstract：:The Fukushima Daiichi Nuclear Power Plant (FDNPP) accident has resulted in the deposition of radioactive contamination of soils mainly by (134)Cs and (137)Cs. The contaminated areas are of a great concern since external radiation may lead to significant long-term doses to humans and animals. External dose rate above g...

journal_title：Radiation protection dosimetry

authors： Mishra S,Sahoo SK,Arae H,Sorimachi A,Hosoda M,Tokonami S,Ishikawa T

更新日期：2015-11-01 00:00:00

abstract：:Dose verification in heavy-ion beams using passive dosemeter systems, e.g. thermoluminescence dosemeters (TLDs), is crucial due to the changing efficiency of the dosemeters for different ion species and linear energy transfer (LET) values. This behaviour leads to a falsification of absorbed dose that can be significan...

journal_title：Radiation protection dosimetry

authors： Berger T,Hajek M,Summerer L,Fugger M,Vana N

更新日期：2006-01-01 00:00:00

abstract：:Bi-directional signaling involved in radiation-induced bystander effect (RIBE) between irradiated carcinoma cells and their surrounding non-irradiated normal cells is relevant to radiation cancer therapy. Using the SPICE-NIRS microbeam, we delivered 500 protons to A549-GFP lung carcinoma cells, stably expressing H2B-G...

journal_title：Radiation protection dosimetry

authors： Kobayashi A,Autsavapromporn N,Ahmad TAFT,Oikawa M,Homma-Takeda S,Furusawa Y,Wang J,Konishi T

更新日期：2019-05-01 00:00:00

abstract：:The purpose of this work was to review the reasonable measures that should be implemented as part of a routine practice in the process of managing CT radiation risks in a typical average radiology department. Based on 6 y of experience in the management of a general radiology department and the newly implemented suppo...

journal_title：Radiation protection dosimetry

authors： Kirova G,Georgiev E,Zasheva C,St Georges A

更新日期：2015-07-01 00:00:00

abstract：:Methodological problems arise on the way of radiation carcinogenesis modelling with the incorporation of radiobiological and cancer biology mechanistic data. The results of biophysical modelling of different endpoints [DNA DSB induction, repair, chromosome aberrations (CA) and cell proliferation] are presented and app...

journal_title：Radiation protection dosimetry

authors： Andreev SG,Eidelman YA,Salnikov IV,Khvostunov IK

更新日期：2006-01-01 00:00:00

abstract：:Two types of thin LiF:Mg,Cu,P detectors, GR-200F and MCP-Ns, have been characterised for use in the design of an extremity dosemeter for mixed beta-photon radiation fields. Both detectors consist of an extremely thin layer of sensitive material with effective thicknesses of 5 and 8 mg cm(-2), respectively, held in a 5...

journal_title：Radiation protection dosimetry

authors： Ginjaume M,Pérez S,Ortega X,Duch MA

更新日期：2006-01-01 00:00:00

abstract：:Extensive data have been gathered in the past on the response of different detectors, based on the registration of neutron-induced fissions in bismuth, gold, tantalum and thorium by the spark-replica counter and the thin film breakdown counter. These detectors make it possible to exploit the excellent characteristics ...

journal_title：Radiation protection dosimetry

authors： Tommasino L,Tripathy SP

更新日期：2004-01-01 00:00:00

abstract：:The use of a custom-made cylindrical graphite proportional counter (Cy-GPC) along with a cylindrical tissue equivalent proportional counter (TEPC) for neutron-gamma mixed-field dosimetry has been studied in the following steps: first, the consistency of the gamma dose measurement between the Cy-TEPC and the Cy-GPC was...

journal_title：Radiation protection dosimetry

authors： Forouzan F,Waker AJ

更新日期：2018-08-01 00:00:00

abstract：:The use of geometrical phantoms for computed tomography (CT) dosimetry can incur errors in the calculation of effective dose due to the anatomically incorrect organ shapes and distributions, and unrepresentative body dimensions. A Monte Carlo program that makes use of an anatomically correct voxel phantom has been dev...

journal_title：Radiation protection dosimetry

authors： Castellano IA,Dance DR,Evans PM

更新日期：2005-01-01 00:00:00

abstract：:The feasibility of large-geometry Metal Oxide Semiconductor Field Effect Transistor (MOSFET) devices has been assessed for both active and passive neutron dosimetry and use in radiotherapy environments. Neutron sensitivity has been enhanced with the use of polymeric cement surrounding the gate region. Neutron activati...

journal_title：Radiation protection dosimetry

authors： Price RA,Benson C,Joyce MJ,Kestell DJ,Silvie J

更新日期：2004-01-01 00:00:00

abstract：:An investigation of the thermoluminescence (TL) properties of high pressure, high temperature (HPHT) synthetic diamond crystals grown under diluted nickel or cobalt as solvent catalysts is reported. After a study of TL properties of 6 different samples, it is shown that a crystal grown with Ni+2%Ti and annealed at 210...

journal_title：Radiation protection dosimetry

authors： Benabdesselam M,Iacconi P,Gheeraert E,Kanda H,Lapraz D,Briand D

更新日期：2002-01-01 00:00:00

abstract：:Virtual models of real phantoms used with Monte Carlo methods facilitate the calibration and other studies associated with whole-body and partial-body counting systems. In this investigation, a voxel model of an LLNL torso phantom, available physically in the in vivo laboratory at KIT, was created from computed tomogr...

journal_title：Radiation protection dosimetry

authors： Hegenbart L,Marzocchi O,Breustedt B,Urban M

更新日期：2009-02-01 00:00:00

abstract：:To study the effect of patient size, anatomical location and modulation strength (MS) on image-quality and delivered dose of CT scans acquired with automatic-exposure-control system (AEC). Four anthropomorphic phantoms (three paediatric and one thin adult) were studied, and normal and obese adults were simulated by pl...

journal_title：Radiation protection dosimetry

authors： Greffier J,Larbi A,Macri F,Beregi JP,Pereira F

更新日期：2017-12-01 00:00:00

abstract：:Described are functions, models and approaches of software tool Emergency Source Term code (ESTE), which is decision support system for crisis staff in case of nuclear or radiological accidents. The first task of ESTE in emergency situation at nuclear facility is to evaluate state of reactor core or state of fuel in s...

journal_title：Radiation protection dosimetry

authors： Fojcíková E,Lipták Ľ,Krpelanová M,Chylý M,Čarný P

更新日期：2019-12-31 00:00:00

abstract：:This study compares the effective doses from a MIRD-type stylised model with those derived from the scaled-down version of the tomographic VIP-Man model for photon, electron, neutron and proton beams. The effective dose results from these two models show that they differ from each other within approximately 10% for co...

journal_title：Radiation protection dosimetry

authors： Xu XG,Chao TC,Bozkurt A

更新日期：2005-01-01 00:00:00

abstract：:Lost wax casting is an industrial process which permits the transmutation into metal of models made in wax. The wax model is covered with a silicaceous shell of the required thickness and once this shell is built the set is heated and wax melted. Liquid metal is then cast into the shell replacing the wax. When the met...

journal_title：Radiation protection dosimetry

authors： Alegría N,Legarda F,Herranz M,Idoeta R

更新日期：2005-01-01 00:00:00

abstract：:The influence of 10 MeV high-current electron beams accelerated by the M-30 microtron on the luminescent properties of the α-Al₂O₃, Al₂O₃:Nb and Al₂O₃:Fe crystals has been studied. The effect of the long-term phosphorescence at room temperature has been found that can be used to monitor electron and gamma accelerator ...

journal_title：Radiation protection dosimetry

authors： Maslyuk VT,Megela IG,Okunieva TO,Pekar JM,Pekar VJ

更新日期：2014-11-01 00:00:00

abstract：:The EC (European Council) Directive on radiation protection of patients requires that criteria for acceptability of equipment in diagnostic radiology, nuclear medicine and radiotherapy be established throughout the member states. This study reviews the background to this requirement and to its implementation in practi...

journal_title：Radiation protection dosimetry

authors： Malone J,Baldelli P,Balter S,Bischof N,Bosmans H,Dowling A,Edyvean S,Gallagher A,Faulkner K,Horner K,Malone L,Mclean ID,O'Connor U,Schreiner A,Vassileva J,Vano E,Zoetelief J

更新日期：2013-02-01 00:00:00