Dosimetric monitoring in Ukraine--present status and path to the future.

abstract：:A secondary standard for ambient dose equivalent, H*(10), is necessary for the dissemination of the unit Sievert (Sv), but there is no such standard commercially available currently. Furthermore, the measurement of H*(10) instead of calculating H*(10) from air kerma and conversion coefficients is needed for unknown ra...

journal_title：Radiation protection dosimetry

authors： Bairlein K,Behnke B,Hupe O

更新日期：2020-06-24 00:00:00

abstract：:New paradigms for parallel programming have been devised to simplify software development on multi-core processors and many-core graphical processing units (GPU). Despite their obvious benefits, the parallelisation of existing computer programs is not an easy task. In this work, the use of the Open Multiprocessing (Op...

journal_title：Radiation protection dosimetry

authors： Örtenberg A,Magnusson M,Sandborg M,Alm Carlsson G,Malusek A

更新日期：2016-06-01 00:00:00

abstract：:Particle accelerators and their surroundings are locations of residual radioactivity production that is induced by the interaction of high-energy particles with matter. This paper gives an overview of the principles of activation caused at proton accelerators, which are the main machines operated at Conseil Européen p...

journal_title：Radiation protection dosimetry

authors： Vincke H,Theis C,Roesler S

更新日期：2011-07-01 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：:The outdoor gamma background of the historic center of Rome was studied by in situ measurements and average values of the outcropping geological formations. The survey resulted in two maps of dose equivalent rate, related to pre-anthropic and present conditions. Presently, the average of the dose equivalent rate from ...

journal_title：Radiation protection dosimetry

authors： Daniela G,Carloni S,Voltaggio M,Di Lisa GA

更新日期：2019-12-31 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 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：:This work describes a technique for the measurement of 222Rn by absorption in polycarbonate (PC) powder and liquid scintillation counting (LSC). The work is an improvement of the recently proposed method for 222Rn measurements by LSC of exposed PC grains. It is demonstrated that the use of PC powder as a 222Rn sampler...

journal_title：Radiation protection dosimetry

authors： Mitev K,Georgiev S,Pressyanov D,Dimitrova I,Zhivkova V,Boshkova T

更新日期：2014-07-01 00:00:00

abstract：:Over the past few years, the Institute for Radiation Protection and Nuclear Safety (IRSN) has been studying a personal electronic neutron dosemeter and an ambient electronic neutron dosemeter based on experimental microdosimetric principles using low pressure proportional counters. The results obtained in 2000 and in ...

journal_title：Radiation protection dosimetry

authors： Ménard S,Chau Q,Lahaye T

更新日期：2002-01-01 00:00:00

abstract：:The purpose of this work was to review the reasonable measures that should be implemented as part of a routine practice in the process of managing CT radiation risks in a typical average radiology department. Based on 6 y of experience in the management of a general radiology department and the newly implemented suppo...

journal_title：Radiation protection dosimetry

authors： Kirova G,Georgiev E,Zasheva C,St Georges A

更新日期：2015-07-01 00:00:00

abstract：:To aid in protecting patients from unnecessary exposures and to reduce radiation burdens to the public, a system for tracking a patient's medical exposure history and related radiation doses would be a useful tool. A patient-centred exposure registry, the Patient Exposure Registry (PER), is a mechanism that provides t...

journal_title：Radiation protection dosimetry

authors： Chen J,Moir D,Cornett J

更新日期：2010-12-01 00:00:00

abstract：:A recoil-proton spectrometer was created by coupling a p-i-n diode with a polyethylene converter. The maximum detectable energy, imposed by the thickness of the totally depleted layer, is approximately 6 MeV. The minimum detectable energy is limited by the contribution of secondary electrons generated by photons in th...

journal_title：Radiation protection dosimetry

authors： Agosteo S,D'Angelo G,Fazzi A,Foglio Para A,Pola A,Ventura L,Zotto P

更新日期：2004-01-01 00:00:00

abstract：:Composite neutron scintillators consisting of neutron-insensitive fluorescent dopant particles (e.g. ZnS:Ag) embedded in a matrix material containing isotopes with high neutron cross sections that emit energetic charged particles (e.g. 6Li) are a popular method for neutron detection in a variety of applications. The s...

journal_title：Radiation protection dosimetry

authors： Stephan AC,Dai S,Wallace SA,Miller LF

更新日期：2005-01-01 00:00:00

abstract：:Albedo neutron dosemeter is the German official personal neutron dosemeter in mixed radiation fields where neutrons contribute to personal dose. In deep geological repositories for high-level nuclear waste, where neutrons can dominate the radiation field, it is of interest to investigate the performance of albedo neut...

journal_title：Radiation protection dosimetry

authors： Pang B,Becker F

更新日期：2017-04-28 00:00:00

abstract：:Building materials contain natural radionuclides (226)Ra, (232)Th and (40)K, which cause direct radiation exposure of the public. The concentrations of (226)Ra, (232)Th and (40)K in commonly used building materials of Urumqi, China have been analysed using gamma-ray spectrometry. The concentrations of (226)Ra, (40)K a...

journal_title：Radiation protection dosimetry

authors： Ding X,Lu X,Zhao C,Yang G,Li N

更新日期：2013-07-01 00:00:00

abstract：:After an explosion of a radiological dispersal device, decision-makers need to implement countermeasures as soon as possible to minimise the radiation-induced risks to the population. In this work, the authors present a tool, which can help providing information about the approximate size of source term and radioactiv...

journal_title：Radiation protection dosimetry

authors： Urso L,Kaiser JC,Woda C,Helebrant J,Hulka J,Kuca P,Prouza Z

更新日期：2014-03-01 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：:Much attention has been devoted in the past to monitor changes of mobile lipid (ML) (1)H MRS signals in spectra of tumour cells. The purpose of this work is to exploit ML signals to provide information on cell metabolism after irradiation, comparing tumour cells characterised by different radiosensitivity and relating...

journal_title：Radiation protection dosimetry

authors： Grande S,Giovannini C,Luciani AM,Palma A,Rosi A,Sapora O,Viti V,Guidoni L

更新日期：2006-01-01 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：:Concentrations of beryllium-7 ((7)Be), lead-210 ((210)Pb) and caesium-137 ((137)Cs) were measured at two sites in the city of Belgrade (Serbia). One monitoring site was located in the central city area with heavy traffic and the other within the Institute of Nuclear Sciences Vinca, in the suburbs. Presented data cover...

journal_title：Radiation protection dosimetry

authors： Todorovic D,Popovic D,Nikolic J,Ajtic J

更新日期：2010-12-01 00:00:00

abstract：:This study compares the effective doses from a MIRD-type stylised model with those derived from the scaled-down version of the tomographic VIP-Man model for photon, electron, neutron and proton beams. The effective dose results from these two models show that they differ from each other within approximately 10% for co...

journal_title：Radiation protection dosimetry

authors： Xu XG,Chao TC,Bozkurt A

更新日期：2005-01-01 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：:For accurate measurements of (220)Rn concentration with airflow-through scintillation cell method, a theoretical study was performed for discussing the influences of sampling flow rate, volumes of sampling tube and scintillation cell on the measurements. It is found that a high flow rate and a large inner volume of sc...

journal_title：Radiation protection dosimetry

authors： Tang F,Zhuo W,Zhao C,Chen B,Xu Y,He L

更新日期：2010-10-01 00:00:00

abstract：:Despite the considerable improvement in accuracy in comparison with previous intercomparison programmes, the outcome of the recent 3rd International Intercomparison on EPR Tooth Dosimetry has demonstrated that performance of various protocols practised in different laboratories significantly varies. SCRM and MUG took ...

journal_title：Radiation protection dosimetry

authors： Chumak V,Ciesielski B,Sholom S,Schultka K

更新日期：2006-01-01 00:00:00

abstract：:Craniospinal irradiation (CSI) is the standard treatment of primary intracranial tumour with risk of leptomeningeal dissemination. However, supine setup field-in-field technique does not need inter-fractional junction shift. Recently, the studies of CSI with tomotherapy showed excellent target coverage and tolerable n...

journal_title：Radiation protection dosimetry

authors： Hong JY,Kim GW,Kim CU,Cheon GS,Son SH,Lee JY,Lee YH,Lee JH,Choi BO,Kim YS,Lee SN,Jang HS,Kang YN,Yoon SC

更新日期：2011-07-01 00:00:00

abstract：:The radioactivity concentrations of nuclides (238)U, (232)Th and (40)K in lake sediments collected from 15 different stations at Altınkaya dam lake and 12 different stations at Derbent dam lake in Turkey were measured using high-resolution gamma-ray spectrometry. The measurement was done using a coaxial HPGe detector ...

journal_title：Radiation protection dosimetry

authors： Eroğlu H,Kabadayi Ö

更新日期：2013-09-01 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：:Two counting techniques are proposed in this paper to estimate thoron ((220)Rn) concentration using a Lucas scintillation cell. The alpha activity build-up inside the cell is calculated theoretically by using Bateman equations. The first method is having a minimum detection limit of 325 Bq m(-3) and can be used for th...

journal_title：Radiation protection dosimetry

authors： Sumesh CG,Kumar AV,Nair RN,Tripathi RM,Puranik VD

更新日期：2012-07-01 00:00:00

abstract：:Human exploration of the solar system beyond Earth's orbit will entail many risks for the crew on these deep space missions. One of the most significant health risks is exposure to the harsh space radiation environment beyond the protection provided by the Earth's intrinsic magnetic field. Crew on exploration missions...

journal_title：Radiation protection dosimetry

authors： Townsend LW

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