Determination of diagnostic reference levels in general radiography in Latin America.

abstract：:Radon exposure in schools is different from that in dwellings because the residence pattern is very different each other. So, when effective dose is calculated in schools, different approach should be considered from in dwellings. The aim of this study was to estimate actual effective dose due to inhaled radon conside...

journal_title：Radiation protection dosimetry

authors： Lee ER,Chang BU,Kim YJ

更新日期：2018-04-01 00:00:00

abstract：:Theoretical models to calculate the indoor gamma and radon doses are reviewed, refined and applied. The model for gamma doses is built based on the relative effects of the different room elements that control the amount of radiation. The relative doses are calculated by the MCNP5 simulation software. The gamma sources...

journal_title：Radiation protection dosimetry

authors： Orabi M

更新日期：2019-12-31 00:00:00

abstract：:A small, specialised amplifier using commercial integrated circuits (ICs) was developed to measure radiation dose and quality in real time using a microdosimetric ion chamber and the variance method. The charges from a microdosimetric ion chamber, operated in the current mode, were repeatedly collected for a fixed per...

journal_title：Radiation protection dosimetry

authors： Hsu WH,Braby LA,Reece WD

更新日期：2008-01-01 00:00:00

abstract：:Anthropomorphic phantoms are used in nuclear medicine for imaging quality control, calibration of gamma spectrometry system for the study of internal contamination with radionuclides and for internal dosimetric studies. These are constructed of materials that have radiation attenuation coefficients similar to those of...

journal_title：Radiation protection dosimetry

authors： Hermosilla A,Díaz Londoño G,García M,Ruíz F,Andrade P,Pérez A

更新日期：2014-12-01 00:00:00

abstract：:Design principles for sub-slab depressurisation systems recently used in the Czech Republic for remediating existing buildings are described. Results of an efficiency analysis performed on the basis of data from >60 single-family houses are presented. It was found out that the efficiency varies between 70 and 98 %, wh...

journal_title：Radiation protection dosimetry

authors： Jiránek M

更新日期：2014-11-01 00:00:00

abstract：:At the Northern Illinois University Institute for Neutron Therapy at Fermilab, the clinical tissue-equivalent ionisation chamber response is measured every treatment day using a cesium source that was configured to match readings obtained at the National Bureau of Standards. Daily measurements are performed in air usi...

journal_title：Radiation protection dosimetry

authors： Kroc TK,Lennox AJ

更新日期：2007-01-01 00:00:00

abstract：:Individual neutron dosimetry represents one of the current difficulties in the field of radiological protection of workers. Since March 1999, the regulatory requirements in France for active (i.e. operational) dosimetry have been those of ICRP Publication 60, applicable from May 2000, necessitating the introduction of...

journal_title：Radiation protection dosimetry

authors： Lahaye T,Cutarella D,Ménard S,Bolognese-Milsztajn T

更新日期：2001-01-01 00:00:00

abstract：:Conversion coefficients are a substantial vehicle in practical radiation protection to determine the dose (rate) of a given radiation field. According to ICRU report 57, their values shall be obtained by means of spectrometry. This is, however, a time-consuming complicated procedure that cannot be performed by all dos...

journal_title：Radiation protection dosimetry

authors： Behnke B,Hupe O

更新日期：2017-04-15 00:00:00

abstract：:The aim of the study is to make a comparison of daily 238U excretion in urine among 115 active uranium miners and its modeled values obtained from inhalation intake of long-lived alpha emitters as measured by personal dosemeters and assessed by biokinetic models for different absorption parameters settings for inhaled...

journal_title：Radiation protection dosimetry

authors： Kotík L,Becková V,Malátová I,Tomasek L

更新日期：2017-12-01 00:00:00

abstract：:One of the topics covered by the OMINEX (Optimisation of Monitoring for Internal Exposure) project was to look at the bioassay measurements performed in the European laboratories. Questionnaires on bioassay measurements by alpha spectrometry or inductively coupled plasma-mass spectrometry (ICP-MS) were sent to Europea...

journal_title：Radiation protection dosimetry

authors： Hurtgen C,Cossonnet C

更新日期：2003-01-01 00:00:00

abstract：:The method of electron paramagnetic resonance (EPR) dosimetry using extracted teeth has been applied to human tooth enamel to obtain individual absorbed doses of residents of settlements in the vicinity of the central axis of radioactive fallout trace from the contaminating surface nuclear test on 7 August 1962. Most ...

journal_title：Radiation protection dosimetry

authors： Zhumadilov KS,Ivannikov AI,Stepanenko VF,Toyoda S,Skvortsov VG,Hoshi M

更新日期：2016-12-01 00:00:00

abstract：:In response to reactive oxygen species (ROS) or electrophiles, the transcription factor nuclear factor-erythroid 2 (NF-E2)-related factor 2 (Nrf2) rapidly translocates into the nucleus and induces the expression of various antioxidant genes, such as heme oxygenase-1 (HO-1). Low linear energy transfer (LET) ionising ra...

journal_title：Radiation protection dosimetry

authors： Yoshino H,Kiminarita T,Matsushita Y,Kashiwakura I

更新日期：2012-11-01 00:00:00

abstract：:In this work, we analyse the dose to 5034 patients (20 137 images) who underwent mammographic examinations with a full-field digital mammography (FFDM) system over a 2-y period. The information relevant to this study has been extracted from the image Digital Imaging and Communications in Medicine (DICOM) headers. Entr...

journal_title：Radiation protection dosimetry

authors： Morán P,Chevalier M,Ten JI,Fernández Soto JM,Vañó E

更新日期：2005-01-01 00:00:00

abstract：:During the 7th European Conference on Protection Against Radon at Home and at Work held in the autumn of 2013 in Prague, the second intercomparison of measuring instruments for radon and its short-lived decay products and the first intercomparison of radon/thoron gas discriminative passive detectors in mix field of ra...

journal_title：Radiation protection dosimetry

authors： Jílek K,Hýža M,Kotík L,Thomas J,Tomášek L

更新日期：2014-07-01 00:00:00

abstract：:The dose limiting factor for 131I therapy in patients with thyroid cancer is myelotoxicity, thus an accurate determination of radioiodine activity in the red marrow is of paramount importance. The reference method for red marrow dosimetry in radiometabolic therapy is based on the measurement of radioiodine kinetics, p...

journal_title：Radiation protection dosimetry

authors： Traino AC,Di Martino F,Boni G,Mariani G,Lazzeri M

更新日期：2004-01-01 00:00:00

abstract：:International standards for radiation protection dosemeters are published by the International Electrotechnical Commission and the International Organization for Standardization. Several standards exist side by side, although they treat the same measuring task, and specify different requirements, so that dosemeters of...

journal_title：Radiation protection dosimetry

authors： Behrens R,Ambrosi P

更新日期：2008-01-01 00:00:00

abstract：:Magnetic resonance imaging (MRI) is one of the most common sources of electromagnetic (EM) fields as a diagnostic technique widely used in medicine. MRI staff during the working day is constantly exposed to static and spatially heterogeneous magnetic field. Also, moving around the MRI room to perform their functions, ...

journal_title：Radiation protection dosimetry

authors： Hartwig V,Virgili G,Ferrante Vero LF,De Marchi D,Landini L,Giovannetti G

更新日期：2018-12-01 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 this article, an approach to compute the dose conversion coefficients (DCCs) is described for the computational voxel phantom 'High-Definition Reference Korean-Man' (HDRK-Man) using artificial neural networks (ANN). For this purpose, the voxel phantom was implemented into the Monte Carlo (MC) transport toolkit GEAN...

journal_title：Radiation protection dosimetry

authors： Kadri O,Manai K

更新日期：2016-12-01 00:00:00

abstract：:Simultaneous indoor radon, radon-thoron progeny and high-resolution in situ gamma spectrometry measurements, with portable high-purity Ge detector were performed in 26 dwellings of Thessaloniki, the second largest town of Greece, during March 2003-January 2005. The radon gas was measured with an AlphaGUARD ionisation ...

journal_title：Radiation protection dosimetry

authors： Clouvas A,Xanthos S,Antonopoulos-Domis M

更新日期：2006-01-01 00:00:00

abstract：:The potential harmful effect of electromagnetic fields on human health is an important issue that has been widely discussed in the scientific community. The investigation of temperature rise in human body following exposure to electromagnetic fields has been found impractical in many aspects. Therefore, fabrication of...

journal_title：Radiation protection dosimetry

authors： Sorgucu U,Develi I,Ozen S

更新日期：2016-03-01 00:00:00

abstract：:The purpose of the research is to develop an integrated technique for determining the effective dose (E) of external and internal exposure by different sources of ionizing radiation. The proposing technique for determining the total effective dose is based on three methods of calculation. The first one is multiplying ...

journal_title：Radiation protection dosimetry

authors： Kudryashev VA,Kim DS

更新日期：2019-12-31 00:00:00

abstract：:Thermoluminescence (TL) dose responses to gamma radiation in the dose range from 0.1 Gy to 20 kGy in MgSO4:Dy, MgSO4:Dy,Mn, MgSO4:Dy,P and MgSO4:Dy,P,Cu phosphors were obtained and fitted by the composite action dose response function to obtain non-linear characteristic parameters, one-hit factor R and characteristic ...

journal_title：Radiation protection dosimetry

authors： Zhang CX,Luo DL

更新日期：2002-01-01 00:00:00

abstract：:Between 2001 and 2003 a 3.2 kJ dense plasma focus (DPF) device has been built at the Montecuccolino Laboratory of the Department of Energy, Nuclear and Environmental Control Engineering (DIENCA) of the University of Bologna. A DPF is a pulsed device in which deuterium nuclear fusion reactions can be obtained through t...

journal_title：Radiation protection dosimetry

authors： Frignani M,Mostacci D,Rocchi F,Sumini M

更新日期：2005-01-01 00:00:00

abstract：:The Organic Bound Tritium (OBT) amount in the body may induce changes in the evaluation of the internal exposure to tritium, due to its different retention time relative to HTO. OBT measurements for urine are not performed routinely, mainly because of the lengthy work needed in preparation of the samples, when using t...

journal_title：Radiation protection dosimetry

authors： Gonen R,Marco R,German U,Katorza E,Alfassi ZB,Haquin G,Tshuva A,Pelled O

更新日期：2007-01-01 00:00:00

abstract：:A new proposed design of neutron shielding material-based on the commercial material Borotron UH050 with an addition of Al(OH)3-is evaluated in order to determine if its neutron and gamma shielding properties match those of a reference material, NS4FR. Neutron and gamma dosimetry measurements are performed, as well as...

journal_title：Radiation protection dosimetry

authors： Campo X,Méndez R,Lacerda MAS,Garrido D,Embid M,Sanz J

更新日期：2018-08-01 00:00:00

abstract：:From August 2016 to June 2017, the Public Health England-Centre for Radiation Chemical and Environmental Hazards (PHE-CRCE), collaborating centre of the WHO, through its Radiation Hazards and Emergencies Department Emergency Response Group has successfully supported five WHO Joint External Evaluation (JEE) missions in...

journal_title：Radiation protection dosimetry

authors： de Ruvo A,Cox D

更新日期：2018-12-01 00:00:00

abstract：:Instead of conventional Ge semiconductor detectors and NaI(Tl) scintillation spectrometers, an application of a CdZnTe semiconductor (CZT) whose crystal has the dimension of 1 cm cubic to the in situ environmental radioactivity measurement was attempted in deeply affected areas in Fukushima region. Results of depositi...

journal_title：Radiation protection dosimetry

authors： Kowatari M,Kubota T,Shibahara Y,Fujii T,Fukutani S,Takamiya K,Mizuno S,Yamana H

更新日期：2015-11-01 00:00:00

abstract：:A micro-gap air-filled ionisation chamber was designed for criticality dosimetry. The special feature of the chamber is its very small gap between electrodes of only 0.3 mm. This prevents ion recombination at high dose rates and minimises the influence of gas on secondary particles spectrum. The electrodes are made of...

journal_title：Radiation protection dosimetry

authors： Murawski Ł,Zielczyński M,Golnik N,Gryziński MA

更新日期：2014-10-01 00:00:00

abstract：:Neutron therapy beams are obtained by accelerating protons or deuterons on Beryllium. These neutron therapy beams present comparable dosimetric characteristics as those for photon beams obtained with linear accelerators; for instance, the penetration of a p(65)+Be neutron beam is comparable with the penetration of an ...

journal_title：Radiation protection dosimetry

authors： Vynckier S,International Atomic Energy Agency.,International Commission on Radiation Units and Measurements.

更新日期：2004-01-01 00:00:00