Analysis and improvement of cyclotron thallium target room shield.

abstract：:Dose conversions were studied for dosimetry of atomic bomb survivors based upon electron spin resonance (ESR) measurements of tooth enamel. Previously analysed data had clarified that the tooth enamel dose could be much larger than other organ doses from a low-energy photon exposure. The radiation doses to other organ...

journal_title：Radiation protection dosimetry

authors： Takahashi F,Sato K

更新日期：2012-03-01 00:00:00

abstract：:Lung disease represents one of the most life-threatening conditions in prematurely born children. In the evaluation of the neonatal chest, the primary and most important diagnostic study is therefore the chest radiograph. Since prematurely born children are very sensitive to radiation, those radiographs may lead to a ...

journal_title：Radiation protection dosimetry

authors： Smans K,Struelens L,Smet M,Bosmans H,Vanhavere F

更新日期：2008-01-01 00:00:00

abstract：:Methodological problems arise on the way of radiation carcinogenesis modelling with the incorporation of radiobiological and cancer biology mechanistic data. The results of biophysical modelling of different endpoints [DNA DSB induction, repair, chromosome aberrations (CA) and cell proliferation] are presented and app...

journal_title：Radiation protection dosimetry

authors： Andreev SG,Eidelman YA,Salnikov IV,Khvostunov IK

更新日期：2006-01-01 00:00:00

abstract：:The purpose of this paper is to evaluate the image quality and dose to patients in the radiography of sacroiliac joints and to perform a clinical comparative study of digital and conventional screen-film radiography. Routine radiography of sacroiliac joint was performed in 60 patients using digital and screen-film rad...

journal_title：Radiation protection dosimetry

authors： Jablanovic D,Ciraj-Bjelac O,Damjanov N,Seric S,Radak-Perovic M,Arandjic D,Maksimovic R

更新日期：2013-06-01 00:00:00

abstract：INTRODUCTION:The main purpose of this study was to determine the diagnostic reference level (DRL) for routine digital radiography examinations in Mazandaran province. MATERIALS AND METHODS:Thirteen digital radiographic examinations at 18 high-patient-load radiography centres were investigated. The indirect dosimetry m...

journal_title：Radiation protection dosimetry

authors： Hoseini Motlagh Z,Shabestani Monfared A,Deevband MR,Abedi-Firouzjah R,Ghaemian N,Abdi R,Ebrahimnejad Gorji K

更新日期：2020-08-03 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

abstract：:The thermoluminescence (TL) of LiF:Mg,Ti has been studied using a high resolution CCD spectrophotometer, which simultaneously measures the emission intensity and the emission spectrum as a function of sample temperature. Computerised deconvolution was used to resolve the emission spectrum into individual Gaussian band...

journal_title：Radiation protection dosimetry

authors： Biderman S,Horowitz Y,Oster L

更新日期：2002-01-01 00:00:00

abstract：:The theoretical basis for comparing risks from short- and long-term exposures is developed aiming at implementing long-term exposures into a unique and consistent system of radiation protection. Based on system-analytical considerations, the equivalence of population-averaged risk rates due to prolonged exposures and ...

journal_title：Radiation protection dosimetry

authors： Beck TR

更新日期：2016-12-01 00:00:00

abstract：:The microdosimetric one hit detector model was applied to calculate the dose response, energy response and relative thermoluminescence (TL) efficiency, eta, of high sensitive LiF:Mg,Cu,P and Al(2)O(3):C detectors after their irradiations by X rays, gamma rays, beta electrons and heavy charged particles (HCP). Microdos...

journal_title：Radiation protection dosimetry

authors： Olko P,Bilski P,Budzanowski M,Czopyk L,Swakon J,Waligorski MP

更新日期：2006-01-01 00:00:00

abstract：:In projection radiography, two types of digital imaging systems are currently available, computed radiography (CR) and direct radiography (DR): a difference between them can be stated in terms of dose and image quality. In the Radiology Emergency Department of our hospital, a flat-panel DR equipment (Siemens Axiom Ari...

journal_title：Radiation protection dosimetry

authors： Compagnone G,Pagan L,Baleni MC,Calzolaio FL,Barozzi L,Bergamini C

更新日期：2008-01-01 00:00:00

abstract：:Data collection and its analysis in the field of nuclear safety is an important task in the sense that it powers the improvement of safety as well as reliability of the plant. Thus, occupational exposure data analysis is presented to measure the safety or reliability of radiation protection of a given facility. It als...

journal_title：Radiation protection dosimetry

authors： Datta D,Singh S,Johnson BE,Kushwaha HS

更新日期：2008-01-01 00:00:00

abstract：:The electrochemical etching (ECE) method enlarges charged particle tracks to enhance its applications in particular in health physics and radiation dosimetry. The ECE method is usually based on using a high frequency-high voltage (HF-HV) generator with 250-µm-thick polycarbonate track detectors (PCTDs). The authors' r...

journal_title：Radiation protection dosimetry

authors： Sohrabi M,Ramezani V

更新日期：2015-04-01 00:00:00

abstract：:With the availability of the National Institute of Standards and Technology (NIST) Radon Emanation Standard with a content of approximately 5000 Bq of 226Ra, it is possible to build a flow through a practical radon test chamber. A standard glove box with four gloves and a transfer port is used. Air is pumped through a...

journal_title：Radiation protection dosimetry

authors： Kotrappa P,Stieff F

更新日期：2008-01-01 00:00:00

abstract：:With the widespread introduction of extra high voltage power transmission lines in the 1960s, and subsequent to early reports from Soviet Union scientists about health risks for transformer station personnel, public concern regarding the effects of electromagnetic fields (EMFs) on biological function has given rise to...

journal_title：Radiation protection dosimetry

authors： Cooper PJ,Garny A,Kohl P

更新日期：2003-01-01 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：:The aim of the present study was to compare image quality and patient dose in cardiac computed tomography angiography (CTA) in terms of volume computed tomography dose index (CTDI vol), dose length product (DLP) and effective dose, when changing from filtered back projection (FBP) to adaptive iterative dose reduction ...

journal_title：Radiation protection dosimetry

authors： Dyakov I,Stoinova V,Groudeva V,Vassileva J

更新日期：2015-07-01 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：:Training in radiation protection is widely recognised as one of the basic components of optimisation programmes for medical exposures. Occupational and patient radiation risks in interventional radiology can be quite high and international bodies have shown concern on this item. Following recommendations of the Intern...

journal_title：Radiation protection dosimetry

authors： Vano E,Gonzalez L

更新日期：2005-01-01 00:00:00

abstract：:The aim of this study is to calculate total cruising route effective doses using three commonly used algorithm codes CARI-6, EPCARD and SIEVERT. Further, the impact of flight cruising duration, altitude and latitude on the estimated effective doses will also be investigated. A total of 24 commercial UAE flight data we...

journal_title：Radiation protection dosimetry

authors： Dalah EZ,Elmahdi HM,Al Humaidan KS,Semerjian L

更新日期：2019-11-30 00:00:00

abstract：:The neutron dose equivalent in aircraft is measured using commercial bubble detectors, but at high altitudes there are not only neutrons but also protons. Bubble detectors have been used because they are considered not to be sensitive to protons, but this has been the subject of only a few studies. In this study, by i...

journal_title：Radiation protection dosimetry

authors： Takada M,Kitamura H,Koi T,Nakamura T,Fujitaka K

更新日期：2004-01-01 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：:European Radiation Dosimetry Group e.V. (EURADOS) survey on individual monitoring data and dose assessment has been carried out for 550 foreigners returning home after being exposed in Japan to intakes of radionuclides (mainly (131)I, (132)I, (132)Te, (134)Cs and (137)Cs) as a consequence of the Fukushima Daiichi NPP ...

journal_title：Radiation protection dosimetry

authors： Lopez MA,Fojtik P,Franck D,Osko J,Gerstmann U,Scholl C,Lebacq AL,Breustedt B,Del Risco Norrlid L

更新日期：2016-09-01 00:00:00

abstract：:There are approximately 20 caves of limestone origin in Zonguldak (Turkey). In this study, the results of atmospheric radon measurements performed for two caves are presented. These caves, Gökgöl and Cehennemağzi, are open to tourism. Gökgöl Cave is the longer, at nearly 3,200 m in length. Cehenennemağzi is a pit-type...

journal_title：Radiation protection dosimetry

authors： Aytekin H,Baldik R,Celebi N,Ataksor B,Tasdelen M,Kopuz G

更新日期：2006-01-01 00:00:00

abstract：:The time variation of the radon equilibrium factor F was measured every four hours in the Nuclear Technology Laboratory of the Aristotle University of Thessaloniki (in northern Greece) during October 1998-April 1999. The time dependence of the mean weekly value of radon equilibrium factor F is relatively small. During...

journal_title：Radiation protection dosimetry

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

更新日期：2003-01-01 00:00:00

abstract：:Radioactive liquid wastes of low-medium activity level are generated in radio immune assay (RIA) laboratories, which are also potentially infectious because of the pathogens from patient blood. The most common way of managing these wastes consists of a temporal storage, for partial radioactivity decay, followed by man...

journal_title：Radiation protection dosimetry

authors： Sancho M,Arnal JM,Villaescusa JI,Campayo JM,Verdú G

更新日期：2005-01-01 00:00:00

abstract：:Amongst the dosemeters offered by the Health Protection Agency (HPA) Personal Dosimetry Service are finger rings, which use the Harshaw™ DXTRAD element. This paper describes restricted-type testing carried out by HPA on the previously untried combination of the LiF:Mg,Cu,P material and a thicker filter (42 mg cm(-2))....

journal_title：Radiation protection dosimetry

authors： Baker ST,Roberts GH,Gilvin PJ

更新日期：2011-03-01 00:00:00

abstract：:The technique of alpha spectrometry is used to detect alpha particles and to determine their energy. In this way the technique is able to provide simultaneously quantitative information (i.e. the activity) and qualitative information (the identity) on any radionuclide that emits an alpha particle. The longer-lived nat...

journal_title：Radiation protection dosimetry

authors： Gingell T

更新日期：2001-01-01 00:00:00

abstract：:All over the world geothermal sources are used for different purposes. The contents of these waters are important to understand positive/negative effects on human life. In this study, natural radioactivity concentrations of geothermal waters were investigated to evaluate the effect on soils and agricultural activities...

journal_title：Radiation protection dosimetry

authors： Murat Saç M,Aydemir S,Içhedef M,Kumru MN,Bolca M,Ozen F

更新日期：2014-01-01 00:00:00

abstract：:In many exposure scenarios to ionising radiation, the dose rate is not constant. Despite this, most in vitro studies aimed at investigating the effects of ionising radiation are carried out exposing samples at constant dose rates. Consequently, very little data exist on the biological effects of exposures to changing ...

journal_title：Radiation protection dosimetry

authors： Brehwens K,Bajinskis A,Staaf E,Haghdoost S,Cederwall B,Wojcik A

更新日期：2012-02-01 00:00:00

abstract：:The results of large-scale computed tomography (CT) patient dose surveys from the USA, UK and Germany undertaken during the period 1999-2001 were reviewed. The mean values for volume-weighted CT dose index (CTDI(vol)) and dose length product (DLP) were extracted. For head CT examinations, the reported values for the t...

journal_title：Radiation protection dosimetry

authors： Martin CJ,Huda W

更新日期：2013-01-01 00:00:00