Field tests using radioactive matter 2.

abstract：:Entrance surface doses (ESDs) were measured for the most common types of X ray procedures, such as chest PA, lumber spine AP, lumber spine lateral, skull AP, skull lateral and pelvis AP in four major hospitals of Dhaka, the capital city of Bangladesh. Organ/tissue doses for 29 organs/tissues and effective doses for th...

journal_title：Radiation protection dosimetry

authors： Begum Z

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：:The present work evaluates the per-procedure, annual collective and per-capita effective doses to the Aosta Valley region population from nuclear medicine (NM) examinations performed from 2005 to 2011 at the regional NM department. Based on its demographical and socioeconomics characteristics, this area can be conside...

journal_title：Radiation protection dosimetry

authors： Aimonetto S,Arrichiello C,Peruzzo Cornetto A,Catuzzo P,Zeverino M,Poti C,Meloni T,Pasquino M,Tofani S

更新日期：2013-12-01 00:00:00

abstract：:A new procedure allowing the separate estimation of neutron and gamma dose in mixed radiation fields has been developed in our laboratory. In this communication, a description of the main features of the discrimination procedure and some preliminary results obtained by its use are presented. The procedure is based on ...

journal_title：Radiation protection dosimetry

authors： Delgado A,Muñiz JL,Gómez Ros JM,Romero AM,Rodríguez R

更新日期：2007-01-01 00:00:00

abstract：:There is a growing public awareness of the risk of accidental radiation exposure due to ageing nuclear power installations, illegal dumping of nuclear waste and terrorist activities, and of the consequential health risks to populations in addition to social and economic disturbance extending beyond national boundaries...

journal_title：Radiation protection dosimetry

authors： Göksu HY,Bailiff IK

更新日期：2006-01-01 00:00:00

abstract：:The latest advances in the development of a fluorescent nuclear track detector (FNTD) for neutron and heavy charged particle dosimetry are described and compared with CR-39 plastic nuclear etched track detectors (PNTDs). The technique combines a new luminescent aluminium oxide single crystal detector (Al(2)O(3):C,Mg) ...

journal_title：Radiation protection dosimetry

authors： Sykora GJ,Akselrod MS,Salasky M,Marino SA

更新日期：2007-01-01 00:00:00

abstract：:Beginning in the 16th century, what was later found to be radon was thought to be causing sickness among miners. During the first decades of the 20th century, exposure to radon was seen as being healthy. During the 1940s, 1950s and 1960s researchers thought that the gamma radiation in residences could produce genetic ...

journal_title：Radiation protection dosimetry

authors： Swedjemark GA

更新日期：2004-01-01 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 current estimations of risk associated with medical imaging procedures rely on assessing the organ dose via direct measurements or simulation. The dose to each organ is assumed to be homogeneous. To take into account the differences in radiation sensitivities, the mean organ doses are weighted by a corresponding t...

journal_title：Radiation protection dosimetry

authors： Samei E,Li X,Chen B,Reiman R

更新日期：2013-06-01 00:00:00

abstract：:In the present paper, the long noses of Pinocchio, Tengu and Trolls are used to measure, respectively, radon, thoron, and their decay products both by track-etch detectors and by Geiger-Müller (G-M) counters. Just recently, four new passive samplers (termed quatrefoil) have been developed which greatly simplify the de...

journal_title：Radiation protection dosimetry

authors： Tommasino L,Tokonami S,Tommasino PM

更新日期：2010-10-01 00:00:00

abstract：:This paper presents a compartmental model for estimating the ingestion dose, due to 137Cs, arising from the consumption of marine fish in Hong Kong. 137Cs is one of the more important radionuclides released in routine liquid effluents discharged from the Guangdong Nuclear Power Station at Daya Bay, which began commerc...

journal_title：Radiation protection dosimetry

authors： Poon CB,Au SM

更新日期：2002-01-01 00:00:00

abstract：:A programme of harmonization of individual dosimetry quality control organized in the framework of a distributed metrology system is presented as seen from the experiences gained in Slovenia. As a part of the programme intercomparison of dosimetry services was organized and basic characteristics of dosimetry systems c...

journal_title：Radiation protection dosimetry

authors： Stuhec M,Zorko B,Vekić B,Miljanić S,Ban R,Basić B

更新日期：2007-01-01 00:00:00

abstract：:This study aims to describe current risk management practices and policies across the world in relation to personal exposures from devices emitting radiofrequency fields, environmental exposures from fixed installations and exposures in the work environment. Data from 86 countries representing all WHO regions were col...

journal_title：Radiation protection dosimetry

authors： Dhungel A,Zmirou-Navier D,van Deventer E

更新日期：2015-04-01 00:00:00

abstract：:For an accurate determination of the absorbed doses in complex radiation fields (e.g. mixed neutron-gamma fields), a better interpretation of the response of ionisation chambers is required. This study investigates a model of the ionisation chambers using a different approach, analysing the collected charge per minute...

journal_title：Radiation protection dosimetry

authors： Roca A,Nievaart VA,Moss RL,Stecher-Rasmussen F,Zamfir NV

更新日期：2008-01-01 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：:To study the effect of patient size, anatomical location and modulation strength (MS) on image-quality and delivered dose of CT scans acquired with automatic-exposure-control system (AEC). Four anthropomorphic phantoms (three paediatric and one thin adult) were studied, and normal and obese adults were simulated by pl...

journal_title：Radiation protection dosimetry

authors： Greffier J,Larbi A,Macri F,Beregi JP,Pereira F

更新日期：2017-12-01 00:00:00

abstract：:Radiation protection (RP) in the use of medical cyclotrons involves many aspects both in the routine use and for the decommissioning of a site. Guidelines for site planning and installation, as well as for RP assessment, are given in international documents; however, the latter typically offer analytic methods of calc...

journal_title：Radiation protection dosimetry

authors： Infantino A,Cicoria G,Lucconi G,Pancaldi D,Vichi S,Zagni F,Mostacci D,Marengo M

更新日期：2017-04-01 00:00:00

abstract：:The aim of biological dosimetry is to estimate the dose and the associated uncertainty to which an accident victim was exposed. This process requires the use of the maximum-likelihood method for fitting a calibration curve, a procedure that is not implemented in most statistical computer programs. Several laboratories...

journal_title：Radiation protection dosimetry

authors： Deperas J,Szluinska M,Deperas-Kaminska M,Edwards A,Lloyd D,Lindholm C,Romm H,Roy L,Moss R,Morand J,Wojcik A

更新日期：2007-01-01 00:00:00

abstract：:In this study, the total exposure due to signals within GSM 900, GSM 1800, CDMA-1900 and 3G-2100 frequency bands at 200 m from the foot of 120, 100 and 80 base station masts in the Nigerian cities of Lagos, Ibadan and Abuja, respectively, was assessed. A calibrated hand-held spectrum analyser was used to measure the l...

journal_title：Radiation protection dosimetry

authors： Ayinmode BO,Farai IP

更新日期：2020-12-31 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：:A method to estimate plutonium content from a limited number of samples of lungs and pulmonary lymph nodes obtained at autopsies of former Mayak Production Association (MPA) workers is described. Historically from one to five samples of lung lobes and one to three respiratory lymph nodes (bronchopulmonary, tracheobron...

journal_title：Radiation protection dosimetry

authors： Sokolova AB,Suslova KG,Miller SC

更新日期：2017-11-01 00:00:00

abstract：:This paper presents the results of radon concentration measurements in drinking water from the municipal water supply system and private wells located in Baoji, China. The measurements were carried out on 69 samples. The mean values of tap water and well water were found to be 12 kBq m(-3) with a maximum of 18 kBq m(-...

journal_title：Radiation protection dosimetry

authors： Xinwei L

更新日期：2006-01-01 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：: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 relationship between the mean glandular dose (MGD) and the compressed breast thickness (CBT) is commonly used for the presentation of mammographic dose survey results and could also be useful for the assessment of individual breast doses retrospectively in case of lack of necessary dosimetric instrumentation. The ...

journal_title：Radiation protection dosimetry

authors： Bor D,Tukel S,Olgar T,Toklu T,Aydin E,Akyol O

更新日期：2008-01-01 00:00:00

abstract：:The observation of anomalies in the radon concentration in soil gas and ground water before earthquakes initiated systematic investigations on earthquake precursor phenomena. The question what is needed for a meaningful earthquake prediction as well as what types of precursory effects can be expected is shortly discus...

journal_title：Radiation protection dosimetry

authors： Friedmann H

更新日期：2012-04-01 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 Techa river region was highly contaminated due to radioactive releases from a nuclear production facility in the period from 1949 to 1956. The inhabitants of the upper Techa river settlements received significant doses of external radiation. The majority of the houses in the upper Techa river villages were demolis...

journal_title：Radiation protection dosimetry

authors： Bougrov NG,Baturin VA,Goeksu HY,Degteva MO,Jacob P

更新日期：2002-01-01 00:00:00

abstract：:Radionuclides that have entered the environment through nuclear weapon tests, nuclear accidents or other human activities represent an ecological hazard. Many decontamination techniques are technically and financially demanding and often not environmentally beneficial. A suitable alternative is bioremediation techniqu...

journal_title：Radiation protection dosimetry

authors： Galanda D,Tatarová D,Kuruc J,Gaálová B,Slimáková J

更新日期：2019-12-31 00:00:00

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