Evaluation of solid state nuclear track detector stacks exposed on the international space station.

abstract：:The objective of this work is to obtain fluence to effective dose conversion coefficients for neutron point sources, using the GEANT4 toolkit. These calculations aim to investigate the aspects of neutron transport in the human body through Monte Carlo simulation using the International Commission on Radiological Prote...

journal_title：Radiation protection dosimetry

authors： Ribeiro RM,Souza-Santos D

更新日期：2018-08-01 00:00:00

abstract：:The main objective of this comparative study was to evaluate the national quality assurance program for X-ray diagnostic radiology in Syrian governmental hospitals. Two periods were covered in this study, the first period was from 1986 to 1998 (52 hospitals and 149 X-ray machines were considered) and the second period...

journal_title：Radiation protection dosimetry

authors： Kharita MH,Khedr MS,Wannus KM

更新日期：2008-01-01 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：:This paper summarises the evaluation of the 1997 EURADOS questionnaire on dosimetric systems able to assess personal dose equivalent. In total, 56 approved dosimetric services in the European Union and Switzerland responded, together monitoring approximately 615,000 occupationally exposed persons. Of these services, 4...

journal_title：Radiation protection dosimetry

authors： van Dijk JW,Bordy JM,Vanhavere F,Wernli C,Zamani-Valasiadou M

更新日期：2001-01-01 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：:The position of detectors used for partial-body counters relative to a measured person has considerable influence on the counting efficiency of low-energy photon emitters. To minimise reading errors and enhance reproducibility of position data, an electronic position recording system was installed in the partial-body ...

journal_title：Radiation protection dosimetry

authors： Hegenbart L,Breustedt B

更新日期：2011-03-01 00:00:00

abstract：:This study assesses the level of natural radioactivity due to radionuclides, ²³⁸U, ²³²Th and ⁴⁰K, in 50 soil samples collected from South Konkan, Maharashtra, India. The mean activity concentrations of ²³⁸U, ²³²Th and ⁴⁰K are 44.97 ± 1.22 Bq kg⁻¹, 59.70 ± 2.17 Bq kg⁻¹ and 217.51 ± 8.75 Bq kg⁻¹, respectively, measured ...

journal_title：Radiation protection dosimetry

authors： Dhawal SJ,Phadatare MR,Thorat ND,Kulkarni GS,Pawar SH

更新日期：2013-12-01 00:00:00

abstract：:An experimental validation of a low-cost method for extrapolation and estimation of the maximal electromagnetic-field exposure from long-term evolution (LTE) radio base station installations are presented. No knowledge on downlink band occupation or service characteristics is required for the low-cost method. The meth...

journal_title：Radiation protection dosimetry

authors： Verloock L,Joseph W,Gati A,Varsier N,Flach B,Wiart J,Martens L

更新日期：2013-06-01 00:00:00

abstract：:An invited panel discussed with the participants of the Symposium their views on the impact of non-targeted effects on the relationship between microdosimetry and risk. The discussion was wide ranging and lively, with divergences of opinion. At one end was the view that understanding microscopic features and distribut...

journal_title：Radiation protection dosimetry

authors： Goodhead DT

更新日期：2011-02-01 00:00:00

abstract：:An intercomparison exercise (IC) on whole body dosemeters to determine the quantity personal dose equivalent Hp (10) in photon radiation fields was jointly organised and conducted by the International Atomic Energy Agency (IAEA) and the Australian Radiation Protection and Nuclear Safety Agency (ARPANSA) for individual...

journal_title：Radiation protection dosimetry

authors： Rizk C,Long S,Okyar HB,Baradaran S,Al Fares E,Sangau JK,Shah BR

更新日期：2019-12-31 00:00:00

abstract：:The diagnostic reference level (DRL) has generally been defined as the 75th percentile of the distributions of mean doses observed on a sample of standard-sized patients, but for mammography, the 95th percentile has been used. In this study, the 75th and 95th percentiles are estimated for 26 full-field digital mammogr...

journal_title：Radiation protection dosimetry

authors： Hauge IH,Bredholt K,Olerud HM

更新日期：2013-12-01 00:00:00

abstract：:Owing to the introduction of new diagnostic procedures, such as computed tomography (CT), positron emission tomography (PET) and single photon emission computed tomography (SPECT), the individual dose caused by medical exposures has grown rapidly in the last years. This is especially a subject to radiation protection ...

journal_title：Radiation protection dosimetry

authors： Hoeschen C,Mattsson S,Cantone MC,Mikuz M,Lacasta C,Ebel G,Clinthorne N,Giussani A

更新日期：2010-04-01 00:00:00

abstract：:The importance of (220)Rn (thoron) progeny for human exposure has been widely recognised in the past decades. Since no stable equilibrium factor was found between indoor thoron and its progeny, and the concentration of thoron progeny varies with time, it is necessary to develop detectors for long-term measurement that...

journal_title：Radiation protection dosimetry

authors： Bi L,Tschiersch J,Meisenberg O,Wielunski M,Li JL,Shang B

更新日期：2011-05-01 00:00:00

abstract：:The accreditation of the Competent Incorporation Measuring Body at Jülich includes incorporation monitoring by means of direct measurements of the body activity as well as by means of indirect determination of the body activity by radiochemical analysis of excreta samples. In both testing areas, it proved to be very u...

journal_title：Radiation protection dosimetry

authors： Hill P,Froning M,Schläger M,Zoriy MV,Lennartz R

更新日期：2011-03-01 00:00:00

abstract：:Bayesian methods provide a unified framework for combining information in the presence of uncertainty. All uncertainties that enter into the description of a measurement are modelled using probability distributions, and these are handled according to the rules of probability theory, ensuring that the approach is free ...

journal_title：Radiation protection dosimetry

authors： Reginatto M

更新日期：2006-01-01 00:00:00

abstract：:Between 2001 and 2003 a 3.2 kJ dense plasma focus (DPF) device has been built at the Montecuccolino Laboratory of the Department of Energy, Nuclear and Environmental Control Engineering (DIENCA) of the University of Bologna. A DPF is a pulsed device in which deuterium nuclear fusion reactions can be obtained through t...

journal_title：Radiation protection dosimetry

authors： Frignani M,Mostacci D,Rocchi F,Sumini M

更新日期：2005-01-01 00:00:00

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：:A range of techniques has been developed in conventional radiography for the chest, because of technical difficulties in imaging the wide variation of tissue densities. These techniques can differ significantly in tube potential selection, for scatter reduction and in application of manual or automatic exposure contro...

journal_title：Radiation protection dosimetry

authors： Doyle P,Martin CJ,Gentle D

更新日期：2005-01-01 00:00:00

abstract：:An oil and gas production facility in the western desert of Egypt was investigated for possible radiation risks due to the routine operation. Radium-226, Radium-228 and Potassium-40 were assessed in the soil samples collected from the adjacent soakaway pond. The average 226Ra, 228Ra and 40K activity concentrations wer...

journal_title：Radiation protection dosimetry

authors： Ebaid YY,Hassan Y,Elshemey WM

更新日期：2020-08-28 00:00:00

abstract：:The substantive safety of radiological and other medical procedures can be radically reduced by unconscious factors governing scientific thought. In addition, the historical exclusion of women from these disciplines has possibly skewed their development in directions that now need to be addressed. This paper focuses o...

journal_title：Radiation protection dosimetry

authors： Condren M

更新日期：2009-07-01 00:00:00

abstract：:Monte Carlo simulations were performed to evaluate treatment doses with wide spread used radionuclides 133Xe, 99mTc and 81mKr. These different radionuclides are used in perfusion or ventilation examinations in nuclear medicine and as indicators for cardiovascular and pulmonary diseases. The objective of this work was ...

journal_title：Radiation protection dosimetry

authors： Jovanovic Z,Krstic D,Nikezic D,Ros JMG,Ferrari P

更新日期：2018-03-01 00:00:00

abstract：:Activity concentrations of dissolved (222)Rn and (226)Ra were measured in several underground aquifers, which are candidates for repositories or for the study of analogue natural escapes of CO2. The concentration of both radionuclides in water was determined using liquid scintillation counting. The values obtained for...

journal_title：Radiation protection dosimetry

authors： Martín Sánchez A,Ruano Sánchez AB,de la Torre Pérez J,Jurado Vargas M

更新日期：2015-11-01 00:00:00

abstract：:An investigation of the simultaneous unfolding of data from neutron spectrometers using the UMG codes MAXED and GRAVEL has been performed. This approach involves combining the data from the spectrometers before unfolding, thereby performing a single combined unfolding of all the data to yield a final combined spectrum...

journal_title：Radiation protection dosimetry

authors： Roberts NJ

更新日期：2007-01-01 00:00:00

abstract：:The new French radiation protection legislation requires the definition of the zoning of accelerator facilities with respect to radioactive waste. This activation inside the ESRF 6 GeV storage ring is essentially due to photonuclear reactions. This paper describes the first results of Monte Carlo calculations that wer...

journal_title：Radiation protection dosimetry

authors： Berkvens P

更新日期：2005-01-01 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：:Evaluation of LiF:Mg,Ti thermoluminescence dosemeters (TLDs) according to the high-temperature ratio (HTR) method enables the determination of the dose-average linear energy transfer (LET), the mean quality factor and the dose equivalent in mixed radiation fields of unknown composition. The neutron contribution is ass...

journal_title：Radiation protection dosimetry

authors： Hajek M,Berger T,Vana N

更新日期：2004-01-01 00:00:00

abstract：:The rigorous characterisation of the behaviour of a radiobase antenna for wireless communication systems is a hot topic both for antenna or communication system design and for radioprotection-hazard reasons. Such a characterisation deserves a numerical solution, and the use of a finite-difference time-domain (FD-TD) a...

journal_title：Radiation protection dosimetry

authors： Catarinucci L,Palazzari P,Tarricone L

更新日期：2001-01-01 00:00:00

abstract：:The dose limiting factor for 131I therapy in patients with thyroid cancer is myelotoxicity, thus an accurate determination of radioiodine activity in the red marrow is of paramount importance. The reference method for red marrow dosimetry in radiometabolic therapy is based on the measurement of radioiodine kinetics, p...

journal_title：Radiation protection dosimetry

authors： Traino AC,Di Martino F,Boni G,Mariani G,Lazzeri M

更新日期：2004-01-01 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：:The purpose of this study was to evaluate radiation doses to the patients and operators during interventional cardiology procedures, with a particular focus on the transcatheter aortic valve implantation (TAVI). Patient doses for 5549 diagnostic and therapeutic procedures and 76 TAVI were examined, as well as occupati...

journal_title：Radiation protection dosimetry

authors： Signorotto P,del Vecchio A,Montorfano M,Maisano F,Giagnorio M,Bellanca R,Colombo A,Calandrino R

更新日期：2010-12-01 00:00:00