A SIMPLIFIED METHOD FOR THE WATER-EQUIVALENT DIAMETER CALCULATION TO ESTIMATE PATIENT DOSE IN CT EXAMINATIONS.

abstract：:The radioactivity concentrations of nuclides (238)U, (232)Th and (40)K in lake sediments collected from 15 different stations at Altınkaya dam lake and 12 different stations at Derbent dam lake in Turkey were measured using high-resolution gamma-ray spectrometry. The measurement was done using a coaxial HPGe detector ...

journal_title：Radiation protection dosimetry

authors： Eroğlu H,Kabadayi Ö

更新日期：2013-09-01 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：:The methods of the dark signal determination by direct contemporaneous measurements using a light spectrum and modelling of the dark signal based on the dark signal characterisation data were discussed. These techniques were tested with two charge-couple detectors (CCD) array spectroradiometers used in solar UVR measu...

journal_title：Radiation protection dosimetry

authors： Baczynska KA,Khazova M

更新日期：2015-02-01 00:00:00

abstract：:The reconstruction of radiation doses to Mayak Production Association workers in central Russia supports radiation epidemiological studies for the U.S.-Russian Joint Coordinating Committee on Radiation Effects Research. The most recent version of the dosimetry was performed with the Mayak Worker Dosimetry System-2013....

journal_title：Radiation protection dosimetry

authors： Napier BA

更新日期：2017-11-01 00:00:00

abstract：:Since 1995, requirements on energy-efficient building construction were established in Russian Building Codes. In the course of time, utilisation of such technologies became prevailing, especially in multi-storey building construction. According to the results of radon survey in buildings constructed meeting new requi...

journal_title：Radiation protection dosimetry

authors： Vasilyev AV,Yarmoshenko IV,Zhukovsky MV

更新日期：2015-06-01 00:00:00

abstract：:Image quality for similar exposure conditions has been compared for two computed radiography (CR) systems (needle-based and conventional storage phosphor) and two flat-panel (DR) systems from different manufacturers mainly devoted to chest radiology. Image quality was assessed with a contrast-detail object and acrylic...

journal_title：Radiation protection dosimetry

authors： Fernandez JM,Ordiales JM,Guibelalde E,Prieto C,Vano E

更新日期：2008-01-01 00:00:00

abstract：:A multi-colour fluorescence in situ hybridisation (MFISH) assay has been developed, for simultaneous visualisation of all human chromosomes in 24 different colours. This assay is based on the simultaneous use of combinatorial labelling and ratio labelling, the so called combined binary ratio labelling (COBRA). This te...

journal_title：Radiation protection dosimetry

authors： Darroudi F,Bezrookove V,Fomina J,Mesker WE,Wiegant JC,Raap AK,Tanke HJ

更新日期：2002-01-01 00:00:00

abstract：:The aim of this work is to calculate the absorbed dose to matter due to neutrons in the 5-150 MeV energy range. Materials involved in the calculations are Al2O3, CaSO4 and CaS, which may be used as dosemeters and have already been studied for their luminescent properties. The absorbed dose is assumed to be mainly due ...

journal_title：Radiation protection dosimetry

authors： Wrobel F,Benabdesselam M,Iacconi P,Lapraz D

更新日期：2004-01-01 00:00:00

abstract：:Radiation dose monitoring for radiography students during clinical training is necessary to demonstrate the extent of radiation protection issues present, as well as to instill in them an awareness of safe practices that they will carry with them throughout their careers. The study assess the radiation dose incurred b...

journal_title：Radiation protection dosimetry

authors： Abuzaid MM,Elshami W,Steelman C

更新日期：2018-05-01 00:00:00

abstract：:The measurement of air samples may be used to assess risks of internal exposures, either by the use of workplace static air samplers (SAS) or personal air samplers (PAS). These measurements need to incorporate information on the physical and chemical nature of the aerosol, and the relationship between the sampled and ...

journal_title：Radiation protection dosimetry

authors： Roberts GA,Bull RK

更新日期：2007-01-01 00:00:00

abstract：:This paper summarises the evaluation of the 1997 EURADOS questionnaire on dosimetric systems able to assess personal dose equivalent. In total, 56 approved dosimetric services in the European Union and Switzerland responded, together monitoring approximately 615,000 occupationally exposed persons. Of these services, 4...

journal_title：Radiation protection dosimetry

authors： van Dijk JW,Bordy JM,Vanhavere F,Wernli C,Zamani-Valasiadou M

更新日期：2001-01-01 00:00:00

abstract：:Kinetics of dissolution of (238)U, (234)U and (230)Th dust deposited on filters from personal alpha dosemeters was studied by means of a 26-d in vitro dissolution test with a serum ultrafiltrate simulant. Dosemeters had been used by miners at the uranium mine 'Dolní Rozínka' at Rozná, Czech Republic. The sampling flow...

journal_title：Radiation protection dosimetry

authors： Becková V,Malátová I

更新日期：2008-01-01 00:00:00

abstract：:The technique of alpha spectrometry is used to detect alpha particles and to determine their energy. In this way the technique is able to provide simultaneously quantitative information (i.e. the activity) and qualitative information (the identity) on any radionuclide that emits an alpha particle. The longer-lived nat...

journal_title：Radiation protection dosimetry

authors： Gingell T

更新日期：2001-01-01 00:00:00

abstract：:Spectrum deconvolution is an important task in ionizing radiation measurements, as the pulse height spectra, or, in general, the measured data from spectrometers or other measuring instruments are usually determined by the convolution of the response function with the fluence spectra. The method presented here for obt...

journal_title：Radiation protection dosimetry

authors： Behrens R,Reginatto M

更新日期：2019-12-23 00:00:00

abstract：:It is popularly known that people who entered into the ground-zero area shortly after the atomic bombings in Hiroshima and Nagasaki suffered from various syndromes similar to acute radiation effects. External exposures from neutron-induced radionuclides in soil have recently been reassessed based on DS02 calculations ...

journal_title：Radiation protection dosimetry

authors： Imanaka T,Endo S,Kawano N,Tanaka K

更新日期：2012-03-01 00:00:00

abstract：:During medical X-ray examinations of patients, humans as well as animals, voluntarily assisting persons are frequently needed in order to calm down the patient or animal. Typical exposure situations have been identified and measurements were performed in the fields of scattered X-rays. The personal dose equivalent H(p...

journal_title：Radiation protection dosimetry

authors： Hupe O,Ankerhold U

更新日期：2011-03-01 00:00:00

abstract：:On leaving the irradiated fuel bay at Pickering A nuclear power station, a worker triggered a whole body monitor alarm with activity in or on his head, and despite careful decontamination techniques he subsequently swallowed a hot particle. Over the next 3 d, the radioactivity was tracked through the body. It was then...

journal_title：Radiation protection dosimetry

authors： Whillans DW,Chase WJ,Wolodarsky WH

更新日期：2007-01-01 00:00:00

abstract：:Radon gas concentrations in eight basements, four living rooms and four caves from different locations in Kabul and Panjsher, Afghanistan, were measured by using eight active radon exposure meters recently developed by the Helmholtz Center in Munich, Germany. The two-phase measurements lasted from a week to a year. In...

journal_title：Radiation protection dosimetry

authors： Tanha MR,Vahlbruch JW,Riebe B,Irlinger J,Rühm W,Khalid FR,Storai A,Walther C

更新日期：2018-01-01 00:00:00

abstract：:The importance of (220)Rn (thoron) progeny for human exposure has been widely recognised in the past decades. Since no stable equilibrium factor was found between indoor thoron and its progeny, and the concentration of thoron progeny varies with time, it is necessary to develop detectors for long-term measurement that...

journal_title：Radiation protection dosimetry

authors： Bi L,Tschiersch J,Meisenberg O,Wielunski M,Li JL,Shang B

更新日期：2011-05-01 00:00:00

abstract：:Activity concentrations of dissolved (222)Rn and (226)Ra were measured in several underground aquifers, which are candidates for repositories or for the study of analogue natural escapes of CO2. The concentration of both radionuclides in water was determined using liquid scintillation counting. The values obtained for...

journal_title：Radiation protection dosimetry

authors： Martín Sánchez A,Ruano Sánchez AB,de la Torre Pérez J,Jurado Vargas M

更新日期：2015-11-01 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：:The aim of the study was to investigate the contribution of secondary neutrons to the total dose inside the International Space Station (ISS). For this purpose solid-state nuclear track detector (SSNTD) stacks were used. Each stack consisted of three CR-39 sheets. The first and second sheets were separated by a Ti pla...

journal_title：Radiation protection dosimetry

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

更新日期：2004-01-01 00:00:00

abstract：:A widely used method in the planning of protective actions is to establish a stakeholder network to generate a comprehensive set of generic protective actions. The aim is to increase competence and build links for communication and coordination. The approach of this work was to systematically evaluate protective actio...

journal_title：Radiation protection dosimetry

authors： Sinkko K,Hämäläinen RP,Hänninen R

更新日期：2004-01-01 00:00:00

abstract：:The variety of radiative models for solar UV radiation is discussed. For the evaluation of measured UV radiation at the ground the basic problem is the availability of actual values of the atmospheric parameters that influence the UV radiation. The largest uncertainties are due to clouds and aerosol, which are highly ...

journal_title：Radiation protection dosimetry

authors： Koepke P

更新日期：2009-12-01 00:00:00

abstract：:This paper compares several methods for estimation of the effective indoor dose of gamma radiation from building materials. It was found that specific dose ratios proposed for 3 cm thick layers in one recommendation gives 2.8 times lower value of gamma dose than other methods. The most common case is that granite has ...

journal_title：Radiation protection dosimetry

authors： Krmar M,Milić K,Arsenić I,Hansman J

更新日期：2020-10-16 00:00:00

abstract：:A study is presented of the thermoluminescence (TL) of phosphors based on potassium halides doped with divalent lead, such as KCl:Pb2+, KBr:Pb2+ and the crystalline series KCl(1-X)Br(X):Pb2+. The defects in the crystals generated by irradiation have been investigated as well as the trapping and room temperature recomb...

journal_title：Radiation protection dosimetry

authors： Cruz-Zaragoza E,Meléndrez R,Chernov V,Barboza-Flores M,Piters TM,Hernández JA,Murrieta HS

更新日期：2002-01-01 00:00:00

abstract：:For more accurate measurement of the potential alpha energy concentration (PAEC) of radon progeny by the liquid scintillation counting (LSC) method, its counting efficiency was studied in this work. A radon progeny standard source was used to provide different concentrations of radon progeny, and the progeny collected...

journal_title：Radiation protection dosimetry

authors： Feng B,Tang Q,Zhang H,Chen B,Qiu S,Zhuo W

更新日期：2019-10-01 00:00:00

abstract：:The natural radionuclide contents of some concrete building blocks randomly sampled in the city of Ibadan have been determined using NaI(Tl) gamma ray spectrometry. The radionuclides 226Ra, 232Th and 40K were determined with city mean specific activities 47 +/- 21 Bq.kg-1, 52 +/- 21 Bq.kg-1, and 352 +/- 222 Bq.kg-1, r...

journal_title：Radiation protection dosimetry

authors： Farai IP,Ademola JA

更新日期：2001-01-01 00:00:00

abstract：:Three widely used anthropomorphic phantoms are analysed with regard to their suitability for the efficiency calibration of whole-body counters (WBCs): a Bottle Manikin Absorber (BOMAB) phantom consisting of water-filled plastic containers, a St Petersburg block phantom (Research Institute of Sea Transport Hygiene, St ...

journal_title：Radiation protection dosimetry

authors： Schläger M

更新日期：2011-03-01 00:00:00

abstract：:The purpose of the multi-centre study was to assess dose area product (DAP) and effective dose of patients undergoing angiography of the lower limbs in Belgium and to investigate the correlation between DAP and effective dose. DAP values were measured in 12 centres and compared with the national diagnostic reference l...

journal_title：Radiation protection dosimetry

authors： Smans K,Struelens L,Hoornaert MT,Bleeser F,Buls N,Berus D,Clerinx P,Malchair F,Vanhavere F,Bosmans H

更新日期：2008-01-01 00:00:00