FEASIBILITY OF DISPLAYED EXPOSURE INDEX IN IEC STANDARD FRAMEWORK AS A DOSE OPTIMISATION TOOL FOR DIGITAL RADIOGRAPHY SYSTEMS.

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：:In this study, radioactivity levels of 35 different samples of 11 commonly used building materials in Samsun were measured by using a gamma spectrometry system. The analysis carried out with the high purity Germanium gamma spectrometry system. Radioactivity concentrations of (226)Ra, (232)Th and (40)K range from 6 to ...

journal_title：Radiation protection dosimetry

authors： Tufan MÇ,Disci T

更新日期：2013-01-01 00:00:00

abstract：:As the number and complexity of fluoroscopically guided interventions increase, a serious effort has to be put on the optimisation of the X-ray dose delivered to the patient. In order to set up this optimisation process, the clinical practice for a given cardiology centre has to be analysed with relevant statistical p...

journal_title：Radiation protection dosimetry

authors： Ryckx N,Goy JJ,Stauffer JC,Verdun FR

更新日期：2016-06-01 00:00:00

abstract：:Analytical geometric models for the bones of the knee region have been developed. A survey was done on real pieces to obtain the dimensions of the geometric sections used in each model. The dependence of the section dimensions on the bone length and the estimated dimensions of the bones for a 1.70 m tall person are pr...

journal_title：Radiation protection dosimetry

authors： Venturini L,Sordi GM,Fernandes F

更新日期：2008-01-01 00:00:00

abstract：:Recently, NASA established a consortium involving the University of Tennessee (lead institution), the University of Houston, Roanoke College and various government and national laboratories, to accelerate the development of a standard set of radiation transport computer codes for NASA human exploration applications. T...

journal_title：Radiation protection dosimetry

authors： Townsend LW

更新日期：2005-01-01 00:00:00

abstract：:Estimation of the surface dose is very important for patients undergoing radiation therapy. The purpose of this study is to investigate the dose at the surface of a water phantom at a depth of 0.007 cm as recommended by the International Commission on Radiological Protection and International Commission on Radiation U...

journal_title：Radiation protection dosimetry

authors： Alashrah S,Kandaiya S,Maalej N,El-Taher A

更新日期：2014-12-01 00:00:00

abstract：:The USA must be prepared to provide a prompt, coordinated and integrated response for radiation dose and injury assessment for suspected radiation exposure, whether it involves isolated cases or mass casualties. Dose estimation for radiation accidents typically necessitates a multiple parameter diagnostics approach th...

journal_title：Radiation protection dosimetry

authors： Dainiak N,Albanese J,Kaushik M,Balajee AS,Romanyukha A,Sharp TJ,Blakely WF

更新日期：2019-12-31 00:00:00

abstract：:In order to obtain a deeper insight into the molecular mechanism controlling the cellular response to high-linear energy transfer (LET) radiation, the number and size of pATM (S1981) and gamma-H2AX foci were compared in cultures of diploid human fibroblasts after exposure to charged particles of varying species, energ...

journal_title：Radiation protection dosimetry

authors： Fürweger C,Hajek M,Vana N,Kodym R,Okayasu R

更新日期：2007-01-01 00:00:00

abstract：:Protons are the dominant particles both in galactic cosmic rays and in solar particle events and, furthermore, proton irradiation becomes increasingly used in tumour treatment. It is believed that complex DNA damage is the determining factor for the consequent cellular response to radiation. DNA plasmid pBR322 was irr...

journal_title：Radiation protection dosimetry

authors： Pachnerová Brabcová K,Štěpán V,Karamitros M,Karabín M,Dostálek P,Incerti S,Davídková M,Sihver L

更新日期：2015-09-01 00:00:00

abstract：:A novel single cell irradiation system using carbon nanotube (CNT) based field emission technology is proposed. The system can produce electron microbeam at a large range of pulsation frequencies and dose rates with energy between 20 and 60 keV. Different from any existing single beam microbeam device, the CNT-based s...

journal_title：Radiation protection dosimetry

authors： Chang S,Zhang J,Bordelon D,Schreiber E,Cox A,Zhou O

更新日期：2006-01-01 00:00:00

abstract：:A current-mode neutron detector with a pair of 6Li- and 7Li-glass scintillators has been developed to measure high-flux neutrons in a boron neutron capture therapy field. Neutrons are basically measured by subtracting gamma-ray component using current outputs from the 7Li-glass scintillator. In the present study, the ...

journal_title：Radiation protection dosimetry

authors： Matsumoto T,Masuda A,Harano H,Hori JI,Sano T

更新日期：2020-06-12 00:00:00

abstract：:The emerging 5 G wireless devices working at frequencies above 6 GHz are expected to have antenna arrays formed by dipoles, slots, patches or their combination. At lower frequencies, the accepted criteria for exposure compliance is stated in terms of specific absorption rate. IEEE and ICNIRP are adopting epithelial or...

journal_title：Radiation protection dosimetry

authors： Carrasco E,Colombi D,Foster KR,Ziskin M,Balzano Q

更新日期：2019-06-01 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：:The new RAMARN system for radon volume activity measurement was developed in 2003 and has been in use since then. RAMARN system consists of a plastic chamber that is conically cylindrical in shape and about 0.5 l in volume; a bare Kodak LR 115 is located on the bottom of this diffusion chamber. The size was chosen to ...

journal_title：Radiation protection dosimetry

authors： Thinová L,Burian I

更新日期：2008-01-01 00:00:00

abstract：:An autonomous unmanned helicopter (AUH) survey is a useful tool for monitoring the distribution of ambient dose equivalent rates. However, the AUH survey method was developed for plane permeable fields such as agricultural land, and its applicability to urban areas is unclear. In this study, the applicability was inve...

journal_title：Radiation protection dosimetry

authors： Yoshimura K,Fujiwara K,Nakama S

更新日期：2019-10-01 00:00:00

abstract：:Natural radiation is the largest contributor to the collective radiation dose of the world population. It is widely distributed in different geological formations such as soil, rocks, air and groundwater. In the present investigation, (226)Ra, (232)Th and (40)K were measured in soil samples of the Ukhimath region of G...

journal_title：Radiation protection dosimetry

authors： Rautela BS,Yadav M,Bourai AA,Joshi V,Gusain GS,Ramola RC

更新日期：2012-11-01 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

abstract：:The method of electron paramagnetic resonance (EPR) dosimetry using extracted teeth has been applied to human tooth enamel to obtain individual absorbed doses of residents of settlements in the vicinity of the central axis of radioactive fallout trace from the contaminating surface nuclear test on 7 August 1962. Most ...

journal_title：Radiation protection dosimetry

authors： Zhumadilov KS,Ivannikov AI,Stepanenko VF,Toyoda S,Skvortsov VG,Hoshi M

更新日期：2016-12-01 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：:In this study, a method to discriminate between natural and other γ-ray sources from environmental γ-ray dose rate monitoring data was developed, and it was successfully applied to actual monitoring data around nuclear facilities. The environmental dose rate is generally monitored by NaI(Tl) detector systems in the lo...

journal_title：Radiation protection dosimetry

authors： Kumagai K,Ookubo H,Kimura H

更新日期：2015-11-01 00:00:00

abstract：:The objective of this article is to present initial occupational dose values using digital active personal dosimeters for medical staff during adult interventional cardiology procedures in a public hospital in Chile. Personal dose equivalent Hp(10) over the lead apron of physician, nurse and radiographer were measured...

journal_title：Radiation protection dosimetry

authors： Ubeda C,Morales C,Gutiérrez D,Oliveira M,Manterola C

更新日期：2018-12-01 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：: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：:In the framework of the ORAMED project (Optimization of RAdiation protection for MEDical staff), funded by the European Union Seventh Framework Programme, different studies were aimed at improving the quality of radiation protection in interventional radiology and nuclear medicine. The main results of the project were...

journal_title：Radiation protection dosimetry

authors： Gualdrini G,Bordy JM,Daures J,Fantuzzi E,Ferrari P,Mariotti F,Vanhavere F

更新日期：2013-05-01 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：:An automatic measuring apparatus called exhalometer for measurement of the radon exhalation rate from soil is introduced. It consists of a pneumatic driven accumulation chamber with an open bottom, a PC-based control system, six Lucas cells for radon measurement and sensors for environmental parameters. It allows movi...

journal_title：Radiation protection dosimetry

authors： Yang J,Buchsteiner M,Salvamoser J,Irlinger J,Guo Q,Tschiersch J

更新日期：2017-11-01 00:00:00

abstract：:Our debaters have agreed to defend positions that appear to be diametrically opposed; nevertheless, they have acknowledged some common ground. Although it was not explicitly stated, they would no doubt agree that workers and the public are adequately protected by our present system of radiation regulations. Our debate...

journal_title：Radiation protection dosimetry

authors： Edwards AA

更新日期：2003-01-01 00:00:00

abstract：:The physical data regarding bremsstrahlung and neutrons produced in a steel shield by high-energy electron beams from a medical linear accelerator were investigated. These data are required to allow the accurate prediction of shielding performance for high-energy electron beams and in the design of radiotherapy facili...

journal_title：Radiation protection dosimetry

authors： Fujita Y,Myojoyama A,Saitoh H

更新日期：2015-02-01 00:00:00

abstract：:An improvement in the clinical results obtained using total body irradiation (TBI) with photon beams requires precise TBI treatment planning, reproducible irradiation, precise in vivo dosimetry, accurate documentation and careful evaluation. In vivo dosimetry using LiF Harshaw TLD-100 chips was used during the TBI tre...

journal_title：Radiation protection dosimetry

authors： Palkosková P,Hlavata H,Dvorák P,Novotný J,Novotný J Jr

更新日期：2002-01-01 00:00:00

abstract：:Absorbed dose and average linear energy transfer (LET) were assessed by means of (7)LiF:Mg,Ti (TLD-700) thermoluminescent (TL) detectors for different panels on-board the Russian Segment of the International Space Station in the timeframe between March and November 2002 (233 d). A technique is presented to correct the...

journal_title：Radiation protection dosimetry

authors： Hajek M,Berger T,Fugger M,Fürstner M,Vana N,Akatov Y,Shurshakov V,Arkhangelsky V

更新日期：2006-01-01 00:00:00