Thermal diffusion of radon in porous media.

abstract：:This work aims at presenting a study using Monte Carlo simulation of a Multileaf Shielding (MLS) System designed to be used for the protection of patients who undergo radiotherapy treatment, against undesired exposure to neutrons produced in the components of the medical linear accelerator heads. The choice of radioth...

journal_title：Radiation protection dosimetry

authors： Rebello WF,Silva AX,Facure A

更新日期：2008-01-01 00:00:00

abstract：:In vitro dose-response calibration curves for (60)Co gamma rays have been established for unstable chromosome aberrations in human peripheral blood lymphocytes. The observed dose-response data were fitted to a linear quadratic model. The calibration curve parameters were used to estimate the equivalent whole-body dose...

journal_title：Radiation protection dosimetry

authors： Senthamizhchelvan S,Pant GS,Rath GK,Julka PK,Nair O,Joshi RC,Malhotra A,Pandey RM

更新日期：2007-01-01 00:00:00

abstract：:The occupational annual dose levels, encountered at fabrication of emerging nuclear fuels, have been studied. Emerging fuels for the single and multiple recycling of Pu and MA have resulted in considerably higher gamma and neutron doses in comparison with commercial fuels. The occupational dose limit is exceeded at fa...

journal_title：Radiation protection dosimetry

authors： Nicolaou G

更新日期：2014-12-01 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：:Planning and preparation in advance for radiological emergencies can help to minimise potential public health and environmental threats if and when an actual emergency occurs. During the planning process, emergency response organisations think through how they would respond to each type of incident and the resources t...

journal_title：Radiation protection dosimetry

authors： Yusof MA,Ali HM

更新日期：2011-07-01 00:00:00

abstract：:A sample is provided of the radiological safety issues particular to low energy proton accelerators. 'Low' energy in this context is taken to mean proton energies of less than about 1 GeV. Many of the radiation issues are common to all particle accelerators. Here, those issues are addressed that may require perhaps no...

journal_title：Radiation protection dosimetry

authors： Moritz LE

更新日期：2001-01-01 00:00:00

abstract：:In the event of a criticality accident, not only the maximal doses received by the victims must be determined but it is also crucial to evaluate the doses to the different organs. With a neutron component, morphology is a key parameter in the organ dose calculation. As the simulation tools can be time consuming to pro...

journal_title：Radiation protection dosimetry

authors： Chevallier MA,Pontier JB,Morin H,Duluc M,Evo S,Letang E,Trompier F

更新日期：2020-11-06 00:00:00

abstract：:This paper presents the values of radon and thoron progeny concentrations for different seasons in the dwellings of Tehri Garhwal, India. The measurements have been carried out using LR-115 solid-state nuclear track detector-based passive time-integrated direct thoron progeny sensor/direct radon progeny sensor techniq...

journal_title：Radiation protection dosimetry

authors： Prasad M,Rawat M,Dangwal A,Yadav M,Gusain GS,Mishra R,Ramola RC

更新日期：2015-11-01 00:00:00

abstract：:This work describes the dosimetry of a two waveguide cell system designed to expose newborn mice to electromagnetic fields associated with wireless fidelity signals in the frequency band of 2.45 GHz. The dosimetric characterisation of the exposure system was performed both numerically and experimentally. Specific meas...

journal_title：Radiation protection dosimetry

authors： Pinto R,Lopresto V,Galloni P,Marino C,Mancini S,Lodato R,Pioli C,Lovisolo GA

更新日期：2010-08-01 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：:Following a radiological or nuclear emergency, first responders and the public may become internally contaminated with radioactive materials, as demonstrated during the Goiânia, Chernobyl and Fukushima accidents. Timely monitoring of the affected populations for potential internal contamination, assessment of radiatio...

journal_title：Radiation protection dosimetry

authors： Li C,Ansari A,Etherington G,Jourdain JR,Kukhta B,Kurihara O,Lopez MA,Ménétrier F,Alves Dos Reis A,Solomon S,Zhang J,Carr Z

更新日期：2016-09-01 00:00:00

abstract：:The International Atomic Energy Agency (IAEA) through the International Action Plan on Radiation Protection of Patients and the International Commission on Radiological Protection have for some time carried out important efforts to assure that in the medical applications of the ionising radiations, the optimisation of...

journal_title：Radiation protection dosimetry

authors： Blanco S,Mora P,Almonte N,Benavente T,Benson N,Blanco D,Cárdenas J,Defaz Gómez Y,Edding O,Escobar C,Fonseca M,Gamarra M,García Aguilar J,Khoury HJ,Quintero AR,Roas Zuniga N,Zaire E,Nader A

更新日期：2013-09-01 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：: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：: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

abstract：:Medical X-ray films are continued to be the major image receptors in diagnostic radiology in India. About 9×10⁶ m² of medical X-ray films are used per annum for diagnostic imaging in India, and its magnitude may further increase as the number of diagnostic X-ray units is increasing rapidly. A national quality control ...

journal_title：Radiation protection dosimetry

authors： Sharma R,Sharma SD

更新日期：2012-01-01 00:00:00

abstract：:Regarding in vivo L-band dosimetry with human teeth, a number of preliminary experiments were carried out that were linked to the resonators response and the relative contribution of enamel to the EPR signal intensity of irradiated whole teeth. The sensitivity of the extended loop resonator varies in the antenna plane...

journal_title：Radiation protection dosimetry

authors： Zdravkova M,Wieser A,El-Faramawy N,Gallez B,Debuyst R

更新日期：2002-01-01 00:00:00

abstract：:The localisation of an unknown neutron source in various bulky homogeneous media was studied. For the planar case two (3)He detectors on the opposite faces of a box were used. It is shown that the location of a single small neutron emitting source in a large box can be found to a better than 7% by using two neutron de...

journal_title：Radiation protection dosimetry

authors： Dubinski S,Presler O,Alfassi ZB

更新日期：2007-01-01 00:00:00

abstract：:Special individual monitoring has been performed for suspected cases of inhalation of plutonium at the Tokai Works of the Japan Nuclear Cycle Development Institute (JNC). Some experimental data obtained from this special individual monitoring during the past 20 years are presented and discussed in this paper. Our expe...

journal_title：Radiation protection dosimetry

authors： Kurihara O,Momose T,Tasaki T,Hayashi N,Shinohara K

更新日期：2002-01-01 00:00:00

abstract：:To calibrate a whole-body counter, it is necessary to find a determination method for peak efficiencies of detectors used in the whole-body counter. For this purpose, peak efficiencies of a Ge semiconductor detector for point and volume sources were evaluated in the photon energy range 60-1836 keV by Monte Carlo simul...

journal_title：Radiation protection dosimetry

authors： Kinase S,Noguchi H,Nakamura T

更新日期：2003-01-01 00:00:00

abstract：:In this study, the thermoluminescence properties of natural calcite samples were examined in detail. The glow curve of the sample irradiated with beta radiation shows two main peaks, P1 (at 115 °C) and P4 (at 254 °C). The additive dose, variable heating rate, computer glow curve deconvolution, peak shape and three poi...

journal_title：Radiation protection dosimetry

authors： Yildirim RG,Kafadar VE,Yazici AN,Gün E

更新日期：2012-09-01 00:00:00

abstract：:The safe use of ionising radiation for applications in medicine, electric power production and industrial processes requires accurate measurements that are traceable to national standards. Radiological calibration laboratories provide measurements that may be used to determine the calibration coefficients for personal...

journal_title：Radiation protection dosimetry

authors： McDonald JC

更新日期：2004-01-01 00:00:00

abstract：:The variation of the response of the instruments with the neutron energy has to be determined in well-characterized monoenergetic neutron fields. The AMANDE facility will deliver such neutron fields between 2 keV and 20 MeV in an experimental hall designed with metallic walls for neutron scattering minimisation. The n...

journal_title：Radiation protection dosimetry

authors： Gressier V,Guerre-Chaley JF,Lacoste V,Lebreton L,Pelcot G,Pochat JL,Bolognese-Milstajn T,Champion D

更新日期：2004-01-01 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：: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：:The indoor workplace environment was evaluated for exposure to radon and its decay products at two Universities in two metropolises of Japan. The mean radon concentrations in Nagoya University (NU) and Hokkaido University (HU) were 16.7 Bq m(-3) and 18.0 Bq m(-3), respectively. Activity median aerodynamic diameter (AM...

journal_title：Radiation protection dosimetry

authors： Rahman NM,Iida T,Yamazawa H,Yokoyama S,Moriizumi J,Saito F,Ito T

更新日期：2007-01-01 00:00:00

abstract：:The national diagnostic reference levels (NDRLs) form an efficient, concise and powerful standard for optimising radiation protection of a patient. However, in a large hospital, where many radiological departments are present, it is also possible to calculate and define lower dose values as local diagnostic reference ...

journal_title：Radiation protection dosimetry

authors： Compagnone G,Pagan L,Bergamini C

更新日期：2005-01-01 00:00:00

abstract：:To assess the frequency of examination, image quality (IQ) and establishment of local diagnostic reference levels (LDRLs) in paediatric radiographic examinations. The X-ray device performance, film reject rate and IQ grading were assessed at Radiology Department of a referral and teaching children's hospital in Kenya....

journal_title：Radiation protection dosimetry

authors： Wambani JS,Korir GK,Korir IK,Kilaha S

更新日期：2013-05-01 00:00:00

abstract：:On the basis of the newly discovered behaviour of LiF:Mg,Cu,P detectors at high and ultra-high doses, a new method of thermoluminescence (TL) measurement of radiation doses ranging from micrograys up to a megagray, has been recently developed at the Institute of Nuclear Physics (IFJ). The method is based on the relati...

journal_title：Radiation protection dosimetry

authors： Obryk B,Bilski P,Olko P

更新日期：2011-03-01 00:00:00

abstract：:Dose estimation in interventional neuroradiology can be useful to limit skin radiation injuries. The purpose of this study was to evaluate the role of entrance skin dose (ESD) maps in planning exposure condition optimisation. Thirteen cerebral angiography and five embolisation procedures were monitored, measuring ESD,...

journal_title：Radiation protection dosimetry

authors： Rampado O,Ropolo R

更新日期：2005-01-01 00:00:00