RADON EXHALATION FROM SOIL AND ITS DEPENDENCE FROM ENVIRONMENTAL PARAMETERS.

abstract：:An international programme of work is currently under way to develop methods for calculating doses to infants from ingestion of radionuclides present in mothers' milk. This paper considers the special case of the alkaline earth elements. Models have been developed for 45Ca, 90Sr and 226Ra and the sensitivity of result...

journal_title：Radiation protection dosimetry

authors： Smith TJ,Phipps AW,Fell TP,Harrison JD

更新日期：2003-01-01 00:00:00

abstract：:A common problem in internal dosimetry occurs in routine monitoring, when it is required to estimate an intake from a measurement made at the end of a monitoring interval, and the time of intake is unknown. ICRP suggests that it should be assumed that the intake occurred in the middle of the monitoring period. However...

journal_title：Radiation protection dosimetry

authors： Birchall A,Puncher M,Marsh JW

更新日期：2007-01-01 00:00:00

abstract：:There have been few studies on the secondary cancer after radiation treatment in Chinese hospitals. This study has measured out-of-field absorbed organ doses from intensity-modulated radiation therapy (IMRT) radiotherapy for esophageal cancer in a Chinese hospital and evaluated the risks of secondary cancer. The dose ...

journal_title：Radiation protection dosimetry

authors： Qi Y,He L,Wang Z,Liu Y,Liu H,Huo W,Xu XG,Chen Z

更新日期：2017-12-01 00:00:00

abstract：:Experimental data on DNA double strand break (DSB) induction in human fibroblasts (AG1522), following irradiation with several radiation qualities, namely gamma rays, 0.84 MeV protons, 58.9 MeV u(-1) carbon ions, iron ions of 115 MeV u(-1), 414 MeV u(-1), 1 GeV u(-1), and 5 GeV u(-1), are presented. DSB yields were me...

journal_title：Radiation protection dosimetry

authors： Esposito G,Belli M,Campa A,Cherubini R,Cuttone G,Dini V,Furusawa Y,Gerardi S,Simone G,Sorrentino E,Tabocchini MA

更新日期：2006-01-01 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：: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：:Simulated-data internal dosimetry cases for use in intercomparison exercises or as a software verification and validation tool have been published on the internet (www.lanl.gov/bayesian/software Bayesian software package II). A user may validate their internal dosimetry code or method using this simulated bioassay dat...

journal_title：Radiation protection dosimetry

authors： Miller G,Bertelli L,Little T,Guilmette RA

更新日期：2007-01-01 00:00:00

abstract：:Public opinion on the application of nuclear technology and radiation could change when a nuclear related event occurs. Japan Atomic Energy Relations Organization has tracked its variation through a nationwide opinion survey in Japan by almost the same way every year since FY 2006. We can identify a continuous long-te...

journal_title：Radiation protection dosimetry

authors： Iimoto T,Takashima R,Kimura H,Kawakami K,Endo H,Yasuda H,Nagata N,Sakai N,Kawasaki Y,Funakoshi M

更新日期：2019-10-01 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：:The new recommendation issued by the International Commission on Radiological Protection (ICRP) introducing a 20-mSv annual dose limit for the eye lens stimulated an interesting debate among the radiation protection community. In the present work the problem of estimating Hp(3) for neutron realistic workplace spectra ...

journal_title：Radiation protection dosimetry

authors： Ferrari P,Gualdrini G,Tanner R,Fantuzzi E

更新日期：2014-10-01 00:00:00

abstract：:Preliminary studies have been conducted into the occupational radiation exposure to NORMS from surface and underground mining operations in a gold mine in the Ashanti Region of Ghana. A brief description of the methods and instrumentation is presented. The annual effective dose has been estimated to be 0.26 +/- 0.11 m...

journal_title：Radiation protection dosimetry

authors： Darko EO,Tetteh GK,Akaho EH

更新日期：2005-01-01 00:00:00

abstract：:Tissue-equivalent proportional counters (TEPCs) have long been considered suitable candidate instruments for more accurate neutron monitors in nuclear power plants. It has also been recognised that the production of truly light-weight devices based on TEPCs requires further effort directed towards increasing their sen...

journal_title：Radiation protection dosimetry

authors： Waker AJ,Aslam,Lori J

更新日期：2011-02-01 00:00:00

abstract：:Peak skin doses to patients undergoing interventional radiological procedures in a 3-year period were assessed to identify the most critical procedures and evaluate probability for occurrence of radiation-induced tissue injuries. Data of 7607 patients were reviewed, identifying those with cumulative air kerma at a ref...

journal_title：Radiation protection dosimetry

authors： Kuhelj D,Kovačič M,Zdešar U,Pekarovič D,Žontar D

更新日期：2019-05-01 00:00:00

abstract：:Kinetic simulations of the thermoluminescence characteristics of LiF:Mg, Ti are reviewed in the framework of conduction band/valence band models. Delocalised recombination models have been mainly applied to the simulation of glow peak shapes, although comparison with experimental data has proven difficult if not impos...

journal_title：Radiation protection dosimetry

authors： Eliyahu I,Oster L

更新日期：2021-01-13 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：:In this work, the MCNP4B code has been employed to calculate conversion coefficients from air kerma to the ambient dose equivalent, H*(10)/Ka, for monoenergetic photon energies from 10 keV to 50 MeV, assuming the kerma approximation. Also estimated are the H*(10)/Ka for photon beams produced by linear accelerators, su...

journal_title：Radiation protection dosimetry

authors： Lima MA,Silva AX,Crispim VR

更新日期：2004-01-01 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：:In 2000 and 2001 about 279 and 221 radiation workers, respectively, were monitored by the Federal Radiation Protection Service, University of Ibadan, in Nigeria. The distribution of the occupational doses shows that the majority of workers received doses below 4 mSv in each of the two years. The radiation workers in t...

journal_title：Radiation protection dosimetry

authors： Ogundare FO,Balogun FA

更新日期：2003-01-01 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 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：:A model of radiation-induced bystander effects is presented that explicitly takes into account the transient nature of bystander signal emission post-irradiation, signal lifetime and the non-linear cellular response to the signals. Data are analysed on mutagenesis induced in human lymphoblasts in medium transfer exper...

journal_title：Radiation protection dosimetry

authors： Kundrát P,Friedland W

更新日期：2015-09-01 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：:A secondary standard ionisation chamber for photon radiation for measuring an ionisation current, which is directly proportional to the conventionally true value of the ambient dose equivalent, H*(10), was optimised. The chamber was developed in the Austrian Research Centers Seibersdorf and is used successfully worldw...

journal_title：Radiation protection dosimetry

authors： Ankerhold U

更新日期：2006-01-01 00:00:00

abstract：:Observer performance studies are time-consuming tasks, both for the participating observers and for the scientists collecting and analysing the data. A possible way to optimise such studies is to perform them in a completely digital environment. A software tool-ViewDEX (Viewer for Digital Evaluation of X-ray images)-h...

journal_title：Radiation protection dosimetry

authors： Börjesson S,Håkansson M,Båth M,Kheddache S,Svensson S,Tingberg A,Grahn A,Ruschin M,Hemdal B,Mattsson S,Månsson LG

更新日期：2005-01-01 00:00:00

abstract：:The first proton linear accelerator for tumor therapy based on an actively scanned beam up to the energy of 150 MeV, is under development and construction by ENEA-Frascati, ISS and IFO, under the Italian TOP-IMPLART project. Protons up to the energy of 7 MeV are generated by a customized commercial injector operating ...

journal_title：Radiation protection dosimetry

authors： De Angelis C,Ampollini A,Basile E,Cisbani E,Della Monaca S,Ghio F,Montereali RM,Picardi L,Piccinini M,Placido C,Ronsivalle C,Soriani A,Strigari L,Trinca E,Vadrucci M

更新日期：2018-08-01 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 European Basic Safety Standards demand the prediction of areas where a significant number of households exceed the reference level for the radon activity concentration. Therefore, radon maps are established which are based on indoor and soil gas measurements. In this study results of soil gas measurements are inte...

journal_title：Radiation protection dosimetry

authors： Kabrt F,Baumgartner A,Stietka M,Friedmann H,Gruber V,Ringer W,Maringer FJ

更新日期：2017-11-01 00:00:00

abstract：:This study analyzes the exposure of the human torso to electromagnetic fields caused by wireless body-mounted or handheld devices. Because of the frequency and distance ranges from 30-5800 MHz and 10 to 200 mm, respectively, both near-field and far-field effects are considered. A generic body model and simulations of ...

journal_title：Radiation protection dosimetry

authors： Christ A,Samaras T,Neufeld E,Klingenböck A,Kuster N

更新日期：2007-01-01 00:00:00

abstract：:Major contaminants from venting and hydrogen explosions at the Fukushima Daiichi nuclear reactors between 12 and 15 March 2011 were transported northwestward and deposited on soil and plants via precipitation. Surface soils and plant leaves were sampled at 64 sites in the Fukushima Prefecture. The highest concentratio...

journal_title：Radiation protection dosimetry

authors： Tazoe H,Hosoda M,Sorimachi A,Nakata A,Yoshida MA,Tokonami S,Yamada M

更新日期：2012-11-01 00:00:00

abstract：:Indoor radon concentrations generally vary with season. Radon gas enters buildings from beneath due to a small air pressure difference between the inside of a house and outdoors. This underpressure which draws soil gas including radon into the house depends on the difference between the indoor and outdoor temperatures...

journal_title：Radiation protection dosimetry

authors： Daraktchieva Z

更新日期：2017-06-01 00:00:00