CT equipment and performance issues: radiation protection 162.

abstract：:The use of depleted uranium ammunition in South Serbia during the 1999 Kosovo conflict raised a great deal of public concern in the Balkans. Radioactivity levels of 238U in 20 wells and lake water samples were checked from the viewpoint of internal radiation exposure for South Serbian subjects. We have measured 238U c...

journal_title：Radiation protection dosimetry

authors： Sahoo SK,Matsumoto M,Shiraishi K,Fujimoto K,Cuknic O,Zunic ZS

更新日期：2007-01-01 00:00:00

abstract：:The first commercial spent nuclear fuel reprocessing plant at Rokkasho in Japan discharged 129I from actual spent nuclear fuel into the atmosphere during its test operation from 2006 to 2008. Previously, we measured monthly atmospheric concentrations of gaseous and particulate 129I and atmospheric deposition rates of ...

journal_title：Radiation protection dosimetry

authors： Abe K,Hasegawa H,Akata N,Kakiuchi H,Chiang JH,Suwa H,Hisamatsu S

更新日期：2019-10-01 00:00:00

abstract：:Developments in hadron therapy require efforts to improve the accuracy of the dose delivered to a target volume. Here, the determination of the absorbed dose under reference conditions was analysed. Based on the International Atomic Energy Agency TRS-398 code of practice, for hadron beams, the combined standard uncert...

journal_title：Radiation protection dosimetry

authors： Rossomme S,Palmans H,Thomas R,Lee N,Duane S,Bailey M,Shipley D,Bertrand D,Romano F,Cirrone P,Cuttone G,Vynckier S

更新日期：2014-10-01 00:00:00

abstract：:The majority of the world's population relies on surface water or large public supply systems of groundwater, where radon is low and a guidance value for radon in drinking water is not necessary. However, the International Commission on Radiological Protection (ICRP) recently issued a dose coefficient for radon ingest...

journal_title：Radiation protection dosimetry

authors： Chen J

更新日期：2019-12-31 00:00:00

abstract：:The International Commission on Radiological Protection (ICRP) has published two reports giving recommendations dealing with the avoidance of deterministic injuries in interventional radiology and the management of patient dose in digital radiology in 2001 and 2004, respectively. Another document, on radiation protect...

journal_title：Radiation protection dosimetry

authors： Vano E,Faulkner K

更新日期：2005-01-01 00:00:00

abstract：:The existence of non-targeted effects (NTEs) of radiation (genomic instability and bystander effects) has been generally accepted for >20 y; however, there is research, which was largely ignored going back to 1915 reporting these effects. Despite today's general acceptance of the phenomenon of NTE, there is little agr...

journal_title：Radiation protection dosimetry

authors： Mothersill C,Seymour C

更新日期：2015-09-01 00:00:00

abstract：:Radiation dose monitoring for radiography students during clinical training is necessary to demonstrate the extent of radiation protection issues present, as well as to instill in them an awareness of safe practices that they will carry with them throughout their careers. The study assess the radiation dose incurred b...

journal_title：Radiation protection dosimetry

authors： Abuzaid MM,Elshami W,Steelman C

更新日期：2018-05-01 00:00:00

abstract：:The aim of the present work is to investigate the possibility of using the properties of the thermoluminescent emission (TL) of Brazilian natural topaz for dosimetric applications. Topaz is an aluminium fluorsilicate with general composition of Al2(SiO4)(F,OH)2 found with relative abundance in Brazil and in other part...

journal_title：Radiation protection dosimetry

authors： Souza DN,Lima JF,Valerio ME,Caldas LV

更新日期：2002-01-01 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：:The United Nations Environment Programme (UNEP) has performed a field survey at 11 sites located in Kosovo, where depleted uranium (DU) ammunitions were used by the North Atlantic Treaty Organization (NATO) during the last Balkans conflict (1999). Soil sampling was performed to assess the spread of DU ground contamina...

journal_title：Radiation protection dosimetry

authors： Sansone U,Stellato L,Jia G,Rosamilia S,Gaudino S,Barbizzi S,Belli M

更新日期：2001-01-01 00:00:00

abstract：:Neutron emission rate measurements have been carried out at the Korea Research Institute of Standards and Science using a manganese sulphate bath system for (252)Cf and (241)Am-Be sources since 2004. The relative measurement method was chosen in 2012, and the neutron emission rates agreed with those by the absolute me...

journal_title：Radiation protection dosimetry

authors： Kim J,Park H,Choi KO

更新日期：2014-10-01 00:00:00

abstract：:Digital breast tomosynthesis is a new three-dimensional (3D) breast-imaging modality that produces images of cross-sectional planes parallel to the detector plane from a limited number of X-ray projections over a limited angular range. Several technical and clinical parameters have not yet been completely optimised. S...

journal_title：Radiation protection dosimetry

authors： Shaheen E,Zanca F,Sisini F,Zhang G,Jacobs J,Bosmans H

更新日期：2010-04-01 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：:Dose and dose rate effectiveness factors (DDREF), in conjunction with other weighting factors, are commonly used to scale atomic bomb survivor data in order to establish limits for occupational radiation exposure, including radiation exposure in space. We use some well-known facts about the microscopic pattern of ener...

journal_title：Radiation protection dosimetry

authors： Schimmerling W,Cucinotta FA

更新日期：2006-01-01 00:00:00

abstract：:The radiation exposure due to 222Rn and its progeny inhalation for clients and employees of selected thermal water spas was assessed. The radon risk was calculated using the measured 222Rn activity concentrations in the investigated thermal waters and radon transfer coefficient, defined as a fraction of radon released...

journal_title：Radiation protection dosimetry

authors： Nowak J,Nguyen Dinh C

更新日期：2017-07-01 00:00:00

abstract：:This paper presents the finding of a study undertaken to determine natural radioactivity and associated hazards in local types of cement in Iran. A total of 42 samples were collected from various manufacturers and suppliers and analysed using a shielded HPGe gamma-ray spectrometer. The specific activities of 232Th, 22...

journal_title：Radiation protection dosimetry

authors： Fathivand AA,Amidi J

更新日期：2007-01-01 00:00:00

abstract：:The model and development is described of a new generation of Monte Carlo track structure codes. The code LEPHIST simulates full slowing down of low-energy proton history tracks in the range 1 keV-1 MeV and the code LEAHIST simulates low-energy alpha particle history tracks in the range 1 keV-8 MeV in water. All prima...

journal_title：Radiation protection dosimetry

authors： Uehara S,Nikjoo H

更新日期：2002-01-01 00:00:00

abstract：:In the present study, the contemporary indoor radon activity concentration and the surface-deposited 210Po activity were measured in 65 Romanian dwellings. The activity of trapped 210Po on the glass surface was measured using the (CR-LR) difference technique. The retrospective radon activity concentration estimated on...

journal_title：Radiation protection dosimetry

authors： Dicu T,Burghele BD,Lupulescu D,Cucos A

更新日期：2018-09-01 00:00:00

abstract：:Because the doses received on-board aeroplanes are now monitored to fulfil legal requirements in some countries, including the European Community, the models to calculate doses received during solar events have left their purely academic status to become a part of operational systems as well. The present work consider...

journal_title：Radiation protection dosimetry

authors： Lantos P

更新日期：2006-01-01 00:00:00

abstract：:Radiation exposure during childhood is estimated to have a lifetime risk up to seven times greater than exposures at adult age. Therefore, paediatric patient dose monitoring is a major concern in radiology. The aim of this study is to evaluate the validity of a dose index, displayed at the digital imaging and communic...

journal_title：Radiation protection dosimetry

authors： Garcia Castañon P,España Lopez ML,Fernandez Bedoya V,Bermudez Luna R,Rodriguez Martin G

更新日期：2012-05-01 00:00:00

abstract：:A method using europium-doped BaFBr imaging plates (IPs) has been studied for mapping entrance skin doses during interventional radiology (IR); the mapping is useful for detecting overlap between irradiation fields and determining the most exposed skin areas. IPs, which are two-dimensional radiation sensors made of ph...

journal_title：Radiation protection dosimetry

authors： Ohuchi H,Satoh T,Eguchi Y,Mori K

更新日期：2005-01-01 00:00:00

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：: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：:Starting in 2009, certain types of incandescent light bulbs will be withdrawn from the market in the European Union and elsewhere. However, compact fluorescent lamps that are among the candidates to replace them produce intermediate frequency electric fields (EFs) much higher than any other device or appliance previou...

journal_title：Radiation protection dosimetry

authors： Bakos J,Nagy N,Juhász P,Thuróczy G

更新日期：2010-12-01 00:00:00

abstract：:Radon measurements were carried out in Kozlu, Karadon and Uzülmez underground coal mines of Zonguldak bituminous coal basin in Turkey. Passive-time integrating method, which is the most widely used technique for the measurement of radon concentration in air, was applied by using nuclear etched track detectors (CR-39) ...

journal_title：Radiation protection dosimetry

authors： Fisne A,Okten G,Celebi N

更新日期：2005-01-01 00:00:00

abstract：:In diagnostic nuclear medicine, the biokinetics of the radiopharmaceutical (actually of the radionuclide) is determined for a number of representative patients. At therapy, it is essential to determine the patient's individual biokinetics of the radiopharmaceutical in order to calculate the absorbed doses to critical ...

journal_title：Radiation protection dosimetry

authors： Mattsson S

更新日期：2015-07-01 00:00:00

abstract：:In order to provide reference fields for the ionising radiation, PTB operates the ion accelerator facility. Referring to high energy photons, reference fields according to International Organization for Standardization 4037 series are produced. The neutron component of the 6-7 MeV photon field (R-F), which is produced...

journal_title：Radiation protection dosimetry

authors： Röttger S,Heiske A,Nolte R

更新日期：2009-07-01 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：: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：:To test the blood tritium level as an estimate of free water tritium (FWT) and organically bound tritium (OBT) in human soft tissues, a tritiated amino acid mixture (TAA) and tritiated water (HTO) were injected or orally administered to mice. Relatively high tritium retention in the blood was found after TAA injection...

journal_title：Radiation protection dosimetry

authors： Saito M

更新日期：2003-01-01 00:00:00