Radon measurements in the caves of Zonguldak (Turkey).

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：:Digital breast tomosynthesis is a new three-dimensional (3D) breast-imaging modality that produces images of cross-sectional planes parallel to the detector plane from a limited number of X-ray projections over a limited angular range. Several technical and clinical parameters have not yet been completely optimised. S...

journal_title：Radiation protection dosimetry

authors： Shaheen E,Zanca F,Sisini F,Zhang G,Jacobs J,Bosmans H

更新日期：2010-04-01 00:00:00

abstract：:The three general principles of the International Commission on Radiological Protection (ICRP) are: justification, optimisation (ALARA) and dose limitation. The principle application of optimisation (ALARA) for occupational exposures of workers or the public to external radiation is reliant on low doses being assessed...

journal_title：Radiation protection dosimetry

authors： Voisin P,Roy L,Benderitter M

更新日期：2004-01-01 00:00:00

abstract：:A theoretical study was carried out to re-evaluate the integrity of the biological shielding of (137)Cs brachytherapy unit at the Korle Bu Teaching Hospital, Ghana, and the results were verified by measurement of the dose rates at selected locations. The primary objective was to determine the current state of protecti...

journal_title：Radiation protection dosimetry

authors： Arwui CC,Schandorf C,Nani K,Darko EO,Deatanyah P

更新日期：2010-06-01 00:00:00

abstract：:In this work, indoor radon radioactivity concentration levels have been measured in dwellings of Turkey within the frame of the National Radon Monitoring Programme. The (222)Rn concentrations were measured with time-integrating passive nuclear etched track detectors in 7293 dwellings in 153 residential units of 81 pro...

journal_title：Radiation protection dosimetry

authors： Celebi N,Ataksor B,Taskın H,Bingoldag NA

更新日期：2015-12-01 00:00:00

abstract：:Dental cone beam computed tomography (CBCT), also known as digital volumetric tomography was developed in the late 1990s and is now increasingly available in clinical practice. It can provide high resolution cross-sectional images of teeth and the maxillofacial region with applications in all branches of dentistry. As...

journal_title：Radiation protection dosimetry

authors： Horner K,Jacobs R,Schulze R

更新日期：2013-02-01 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：:Swedish hemangioma patients were treated in infancy mainly by external application of radium-226 starting from 1920. This work analysed the radiation risk among 17,158 women with a total of 678 breast cancer incidence cases with models of carcinogenesis and empirical excess relative risk models. Models incorporating e...

journal_title：Radiation protection dosimetry

authors： Eidemüller M,Holmberg E,Jacob P,Lundell M,Karlsson P

更新日期：2011-02-01 00:00:00

abstract：:Estimating organ absorbed doses in consideration of person-specific parameters is important for radiation protection in diagnostic nuclear medicine. This study proposes a straightforward method for estimating the organ dose that reflects a specific organ mass by scaling the reference organ dose using the inverse ratio...

journal_title：Radiation protection dosimetry

authors： Manabe K,Koyama S

更新日期：2020-07-24 00:00:00

abstract：:GSI is operating a facility for the production of rare isotopes. Nuclei are produced by fragmentation or fission of the impinging heavy ions with energies of approximately 1 GeV per nucleon. The major part of the primary beam and the produced nuclei is deposited in the components of the Fragment Separator (FRS) and ge...

journal_title：Radiation protection dosimetry

authors： Fehrenbacher G,Festag JG

更新日期：2004-01-01 00:00:00

abstract：:A 'moving-target' method for characterising background in a counting measurement in which the instantaneous background count rate is a function of time, rather than being fixed, is proposed. This model treats the average Poisson mean in observation period P as coming from a gamma distribution with parameters αP and βP...

journal_title：Radiation protection dosimetry

authors： Klumpp J,Miller G,Brandl A

更新日期：2015-04-01 00:00:00

abstract：:In circumstances of inhalation exposure the radiotoxicity of radionuclide depends on the fractional deposition of inhaled activity, which is governed by the aerodynamic characteristics of the particles. Although International Commission on Radiological Protection (ICRP) provides default size distribution parameters fo...

journal_title：Radiation protection dosimetry

authors： Shailesh M,Das T,Prabhat M,Kolekar RV,Gopalakrishnan RK

更新日期：2018-04-01 00:00:00

abstract：:The prevalent algorithm for the estimation of beta dose, which in turn is used for estimation of skin dose for exposures involving beta radiations was observed to significantly overestimate the dose in individual monitoring based on CaSO4:Dy TLD badge in India. A new algorithm has been developed by estimating the corr...

journal_title：Radiation protection dosimetry

authors： Rakesh RB,Kumar M,Sneha C,Ratna P,Datta D

更新日期：2017-06-01 00:00:00

abstract：:This study was conducted to assess the level of radioactivity and the radiation hazards associated with granite rocks used for construction of buildings. The measurement of radioactivity content of the rock samples was performed with gamma-spectrometry equipped with Nal (TI) detector. From the results obtained in this...

journal_title：Radiation protection dosimetry

authors： Fadol N,Idriss H,Salih I,Ragab NA,Osman S,Sam AK

更新日期：2018-06-01 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：: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：:The purpose of this study was to investigate radiation doses in cerebral perfusion computed tomography (CT) examination. As a part of routine patient monitoring, data were collected on patients in terms of the skin dose and CT dose index (CTDIvol) and dose-length product (DLP) values. For the estimation of the dose to...

journal_title：Radiation protection dosimetry

authors： Arandjic D,Bonutti F,Biasizzo E,Ciraj-Bjelac O,Floreani M,Giustizieri M,Iaiza F,Inkoom S,Tommasini G,Padovani R

更新日期：2013-05-01 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：:Radiation qualities were characterised and validated at the fully automated X-ray calibration facility of the Individual Monitoring Service at Helmholtz Zentrum München by using half-value layer and Hp(10) dosimetry approaches specified in the updated ISO 4037:2019 standard. As the ISO 4037 contains a somewhat vague d...

journal_title：Radiation protection dosimetry

authors： Bandalo V,Greiter MB,Brönner J,Hoedlmoser H

更新日期：2019-12-31 00:00:00

abstract：:Particle accelerators and their surroundings are locations of residual radioactivity production that is induced by the interaction of high-energy particles with matter. This paper gives an overview of the principles of activation caused at proton accelerators, which are the main machines operated at Conseil Européen p...

journal_title：Radiation protection dosimetry

authors： Vincke H,Theis C,Roesler S

更新日期：2011-07-01 00:00:00

abstract：:The epithermal neutron beam at the LVR-15 reactor was designed for the Boron Neutron Capture Therapy (BNCT) of cancers, but it has also been used for material testing. In the case where the beam is closed with two designed shutters, there is still an indispensable background in the irradiation room, which limits the m...

journal_title：Radiation protection dosimetry

authors： Marek M,Viererbl L

更新日期：2005-01-01 00:00:00

abstract：:Differences and similarities between LiF-based LiF:Mg,Ti and LiF:Mg,Cu,P are discussed, with respect to their dosimetric properties--sensitivity, non-linearity of dose response and heavy charged particle efficiency, as related to the concentration and the individual role of the Mg, Ti, Cu and P dopants. To study furth...

journal_title：Radiation protection dosimetry

authors： Bilski P

更新日期：2002-01-01 00:00:00

abstract：:A new quasi-monoenergetic neutron beam facility has been constructed at The Svedberg Laboratory (TSL) in Uppsala, Sweden. Key features include a neutron energy range of 11-175 MeV, high fluxes, user flux control, flexible neutron field size and shape, and spacious and easily accessible user area. The first results of ...

journal_title：Radiation protection dosimetry

authors： Prokofiev AV,Blomgren J,Byström O,Ekström C,Pomp S,Tippawan U,Ziemann V,Osterlund M

更新日期：2007-01-01 00:00:00

abstract：:Cell storage in liquid nitrogen (LN) offers the most secure method of cell preservation even if cryopreserved cells are exposed to natural background of ionising radiation (IR). A lot of experiments have demonstrated that IR can induce damages in living cells, but only a little information regarding the response of cr...

journal_title：Radiation protection dosimetry

authors： Cugia G,Centis F,Del Zotto G,Lucarini A,Argazzi E,Zini G,Valentini M,Bono M,Picardi F,Stramigioli S,Cesarini W,Zamai L

更新日期：2011-02-01 00:00:00

abstract：:Improved radiation protection of humans requires a better understanding of the mechanisms of radiation action and accurate estimates of radiation risk for both internal and external radiations. The Japanese atomic bomb survivors represent one of the most important sources of human data on the late carcinogenic effects...

journal_title：Radiation protection dosimetry

authors： Pattison JE,Hugtenburg RP,Charles MW,Beddoe AH

更新日期：2001-01-01 00:00:00

abstract：:Is atmospheric dispersion forecasting an important asset of the early-phase nuclear emergency response management? Is there a 'perfect atmospheric dispersion model'? Is there a way to make the results of dispersion models more reliable and trustworthy? While seeking to answer these questions the multi-model ensemble d...

journal_title：Radiation protection dosimetry

authors： Galmarini S,Bianconi R,Klug W,Mikkelsen T,Addis R,Andronopoulos S,Astrup P,Baklanov A,Bartniki J,Bartzis JC,Bellasio R,Bompay F,Buckley R,Bouzom M,Champion H,D'Amours R,Davakis E,Eleveld H,Geertsema GT,Glaab H,Kol

更新日期：2004-01-01 00:00:00

abstract：:Calcium fluoride CaF2 is an interesting host lattice for rare earth (RE) activators. CaF2 crystals doped with different concentrations of Dy, Ce, Er and Gd have been grown by the Bridgman technique and their deformation luminescence (DL) induced by room temperature gamma irradiation has been recorded. When a uniaxial ...

journal_title：Radiation protection dosimetry

authors： Kher RS,Brahme N,Banerjee M,Dhoble SJ,Khokhar MS

更新日期：2006-01-01 00:00:00

abstract：:Tritium present in the environment gradually decreased in the last decades and nowadays it has reached extremely low activity concentrations. The purpose of the present work is the implementation of a tritium enrichment system in water samples using electrolytic techniques and pure nickel and iron electrodes. In the p...

journal_title：Radiation protection dosimetry

authors： Garbarino G,Magnoni M,Bertino S,Losana MC

更新日期：2009-12-01 00:00:00

abstract：:Adequate dose management during computed tomography is important. In the present study, the dosimetric application software ImPACT was added to a functional calculator of the size-specific dose estimate and was part of the scan settings for the auto exposure control (AEC) technique. This study aimed to assess the prac...

journal_title：Radiation protection dosimetry

authors： Kobayashi M,Asada Y,Matsubara K,Suzuki S,Matsunaga Y,Haba T,Kawaguchi A,Daioku T,Toyama H,Kato R

更新日期：2017-05-01 00:00:00

abstract：:A device based on a single silicon detector of special converter/detector design optimised for the determination of the neutron dose equivalent is also used for the determination of the photon dose equivalent. While the neutron dose is determined on the basis of signals corresponding to energy depositions above 1.5 Me...

journal_title：Radiation protection dosimetry

authors： Luszik-Bhadra M

更新日期：2002-01-01 00:00:00