Determination of a neutron source position in an unknown homogeneous medium; the 2D case.

abstract：:Two phantoms for a performance evaluation of cone-beam computed tomography (CBCT) were developed and their efficiency was tested. The first phantom, for low-contrast resolution, consisted of an acrylic circular plate with three 0.5-1.0 mm diameter rods. These rods enable the user to visually evaluate the limit of obse...

journal_title：Radiation protection dosimetry

authors： Bamba J,Ishida H,Araki K

更新日期：2019-05-01 00:00:00

abstract：:Simulated-data internal dosimetry cases for use in intercomparison exercises or as a software verification and validation tool have been published on the internet (www.lanl.gov/bayesian/software Bayesian software package II). A user may validate their internal dosimetry code or method using this simulated bioassay dat...

journal_title：Radiation protection dosimetry

authors： Miller G,Bertelli L,Little T,Guilmette RA

更新日期：2007-01-01 00:00:00

abstract：:We developed a radiation detector based on an organic scintillator for spectrometry and dosimetry of out-of-field secondary neutrons from clinical proton beams. The detector consists of an EJ-299-34 crystalline organic scintillator, coupled by fiber optic cable to a silicon photomultiplier (SiPM). Proof of concept mea...

journal_title：Radiation protection dosimetry

authors： Beyer KA,Di Fulvio A,Stolarczyk L,Parol W,Mojzeszek N,Kopéc R,Clarke SD,Pozzi SA

更新日期：2018-08-01 00:00:00

abstract：:The project 'Radiological Analysis of Environmental Samples in the Gulf of Mexico and the coast of Quintana Roo', had the aim of identifying and quantifying anthropogenic radionuclides in environmental samples consisting of silt, sand and sea water. This paper presents the results of the radiological analysis of these...

journal_title：Radiation protection dosimetry

authors： Salas Mar B

更新日期：2015-11-01 00:00:00

abstract：:There have been several suggestions of biomarkers that are specific to high LET radiation. Such a biomarker could significantly increase the power of epidemiological studies of individuals exposed to densely-ionising radiations such as alpha particles (e.g. radon, plutonium workers, individuals exposed to depleted ura...

journal_title：Radiation protection dosimetry

authors： Brenner DJ,Okladnikova N,Hande P,Burak L,Geard CR,Azizova T

更新日期：2001-01-01 00:00:00

abstract：:Chips of a radiophotoluminescence glass dosemeter (RPLG) were used for measurements of space radiation during a 9.8 d Shuttle-Mir mission (STS-91) at an altitude of 400 km and an inclination of 51.65 degrees. Two of RPLG chips were put into each of 59 positions in or on a life-size human phantom. The RPLG values equiv...

journal_title：Radiation protection dosimetry

authors： Yasuda H,Fujitaka K

更新日期：2002-01-01 00:00:00

abstract：:In France, natural sources account for most of the population exposure to ionising radiation. This exposure varies widely with area. Radon and gamma-ray exposure data come from national measurement campaigns; cosmic doses were calculated from city altitude. These data were corrected for season of measurement, housing ...

journal_title：Radiation protection dosimetry

authors： Billon S,Morin A,Caër S,Baysson H,Gambard JP,Backe JC,Rannou A,Tirmarche M,Laurier D

更新日期：2005-01-01 00:00:00

abstract：:Exposure to radon and radon decay products in some residential areas and at workplaces constitutes one of the greatest risks from natural sources of ionising radiation. Recently, increasing attention has been paid to the precise estimations of this health risk by numerous models. The compartmental model published in I...

journal_title：Radiation protection dosimetry

authors： Böhm R,Nikodémová D,Holý K

更新日期：2003-01-01 00:00:00

abstract：:This study analyzes the exposure of the human torso to electromagnetic fields caused by wireless body-mounted or handheld devices. Because of the frequency and distance ranges from 30-5800 MHz and 10 to 200 mm, respectively, both near-field and far-field effects are considered. A generic body model and simulations of ...

journal_title：Radiation protection dosimetry

authors： Christ A,Samaras T,Neufeld E,Klingenböck A,Kuster N

更新日期：2007-01-01 00:00:00

abstract：:Radiation shielding assessments may underestimate the expected dose if some isotopes at trace level are not considered in the isotopes inventory of the shielded radioactive materials. Indeed, information about traces is not often available. Nevertheless, the activation of some minor isotopic traces may significantly c...

journal_title：Radiation protection dosimetry

authors： Bonin A,Tsilanizara A

更新日期：2017-06-01 00:00:00

abstract：:In the present paper, we report the indigenous development of a neutron-sensitive thermoluminescent dosemeter (TLD) based on CaSO4:Dy Teflon TL disc. The study includes indigenous development of a neutron dosemeter and its response in terms of operational quantity to different energies of neutrons under various irradi...

journal_title：Radiation protection dosimetry

authors： Bakshi AK,Pradhan AS,Kher RK,Srivastava K,Varadharajan G,Chatterjee S,Sathian V

更新日期：2009-01-01 00:00:00

abstract：:It has been reported recently that the A-bomb gamma ray spectra received by the colon of the average Japanese survivor of Hiroshima and Nagasaki may be experimentally simulated using a hospital-based Philips SL15 linear accelerator. The simulated A-bomb gamma radiation may be used in radiobiology experiments to determ...

journal_title：Radiation protection dosimetry

authors： Pattison JE,Payne LC,Hugtenburg RP,Beddoe AH,Charles MW

更新日期：2004-01-01 00:00:00

abstract：:For the purpose of radiation protection, the reference neutron field for calibration of neutron monitors was constructed using radioactive neutron sources-bare-(252)Cf, D(2)O-moderated (252)Cf and (241)Am-Be(alpha,n)-at Korea Research Institute of Standards and Science (KRISS). The well-specified neutron source with i...

journal_title：Radiation protection dosimetry

authors： Park H,Kim J,Choi KO

更新日期：2007-01-01 00:00:00

abstract：:Expansion of accelerator technologies into different application areas brings the need for neutron-field measurements in their vicinity. The measurements of neutron energy spectra and neutron dose rates can be done with the aid of neutron multisphere spectrometers with passive neutron detectors. In addition to the usu...

journal_title：Radiation protection dosimetry

authors： Vlk P,Pavlovic M

更新日期：2018-04-01 00:00:00

abstract：:The aim of this work was to experimentally compare the contrast improvement factors (CIFs) of a newly developed software-based scatter correction to the CIFs achieved by an antiscatter grid. To this end, three aluminium discs were placed in the lung, the retrocardial and the abdominal areas of a thorax phantom, and di...

journal_title：Radiation protection dosimetry

authors： Mentrup D,Jockel S,Menser B,Neitzel U

更新日期：2016-06-01 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：:Virtual models of real phantoms used with Monte Carlo methods facilitate the calibration and other studies associated with whole-body and partial-body counting systems. In this investigation, a voxel model of an LLNL torso phantom, available physically in the in vivo laboratory at KIT, was created from computed tomogr...

journal_title：Radiation protection dosimetry

authors： Hegenbart L,Marzocchi O,Breustedt B,Urban M

更新日期：2009-02-01 00:00:00

abstract：:One of the topics which forms part of CONRAD project addresses the problems related to the dosimetry of complex-mixed radiation fields at workplaces. This topic was included in work package (WP) 6. WP 6 was established to co-ordinate research activities in two areas:the development of new techniques and the improvemen...

journal_title：Radiation protection dosimetry

authors： Spurny F,Silari M

更新日期：2008-01-01 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 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：:The activity size distribution of the Equilibrium-Equivalent Concentration (EER) of 222Rn is one of the most important parameters for the estimation of radiation dose by inhalation of radon decay products. A series of measurements of the EER activity size distribution were performed by the screen diffusion battery in ...

journal_title：Radiation protection dosimetry

authors： Otahal PPS,Burian I,Ondracek J,Zdimal V,Holub RF

更新日期：2017-11-01 00:00:00

abstract：:The SCK·CEN has carried out neutron field characterisation campaigns at several nuclear reactors. The main goal of these measurement campaigns was to evaluate the performance of different neutron personal dosemeters. To be able to evaluate the performance of neutron personal dosemeters in terms of Hp(10), knowledge of...

journal_title：Radiation protection dosimetry

authors： Cauwels V,Vanhavere F,Reginatto M

更新日期：2014-10-01 00:00:00

abstract：:Zircon contains small amounts of uranium, thorium and radium in its crystalline structure. The ceramic industry is one of the major consumers of zirconium compounds that are used as an ingredient at ∼10-20 % by weight in glaze. In this study, seven different ceramic factories have been investigated regarding the prese...

journal_title：Radiation protection dosimetry

authors： Fathabadi N,Farahani MV,Amani S,Moradi M,Haddadi B

更新日期：2011-06-01 00:00:00

abstract：:The individual monitoring service at the Helmholtz Zentrum München is currently developing a new eye lens dosemeter to be integrated in radiation protection glasses and a new ring dosemeter using a new BeOSL detector element for extremity dosimetry developed by Dosimetrics. In the design process for the new eye lens d...

journal_title：Radiation protection dosimetry

authors： Hoedlmoser H,Brönner J,Bandalo V,Wahl F,Greiter MB

更新日期：2019-12-23 00:00:00

abstract：:The present work aims to assess the effective doses from long-term continual radon monitoring in six European caves (Slovenia, Slovakia and the Czech Republic), including influencing environmental factors. Caves are important radiation protection subjects because of elevated radon activity concentration (~kBq/m3), mos...

journal_title：Radiation protection dosimetry

authors： Ambrosino F,Thinová L,Briestenský M,Sabbarese C

更新日期：2020-11-27 00:00:00

abstract：:Anthropomorphic phantoms are used in nuclear medicine for imaging quality control, calibration of gamma spectrometry system for the study of internal contamination with radionuclides and for internal dosimetric studies. These are constructed of materials that have radiation attenuation coefficients similar to those of...

journal_title：Radiation protection dosimetry

authors： Hermosilla A,Díaz Londoño G,García M,Ruíz F,Andrade P,Pérez A

更新日期：2014-12-01 00:00:00

abstract：:Results of performance tests verifying the dosimetric properties of dosimetric systems are published in various reports (e.g. IAEA and EURADOS). However, there is hardly any information in the open literature relating to the uncertainty in a dose measurement or in the annual dose, which is increased by failure of the ...

journal_title：Radiation protection dosimetry

authors： Stadtmann H,Figel M,Kamenopoulou V,Kluszczynski D,Roed H,Van Dijk J

更新日期：2004-01-01 00:00:00

abstract：:Human behaviour is primarily driven by perceptions and this is particularly important in the aftermath of a nuclear accident. One of the main lessons we can draw from the Chernobyl and Fukushima accidents is that once the acute phase of the accident is over, it is important to engage in dialogue with the affected popu...

journal_title：Radiation protection dosimetry

authors： Vanmarcke H

更新日期：2017-04-01 00:00:00

abstract：:The current revision of the Swiss Radiological Protection Ordinance aims to bring Swiss legislation in line with new international standards. In future, the control of radon exposure in dwellings will be based on a reference level of 300 Bq m(-3). Since this value is exceeded in >10 % of the buildings so far investiga...

journal_title：Radiation protection dosimetry

authors： Palacios Gruson M,Barazza F,Murith C,Ryf S

更新日期：2015-04-01 00:00:00

abstract：:Bi-directional signaling involved in radiation-induced bystander effect (RIBE) between irradiated carcinoma cells and their surrounding non-irradiated normal cells is relevant to radiation cancer therapy. Using the SPICE-NIRS microbeam, we delivered 500 protons to A549-GFP lung carcinoma cells, stably expressing H2B-G...

journal_title：Radiation protection dosimetry

authors： Kobayashi A,Autsavapromporn N,Ahmad TAFT,Oikawa M,Homma-Takeda S,Furusawa Y,Wang J,Konishi T

更新日期：2019-05-01 00:00:00