Abstract：
:To study the shielding effect of radiologists' eye lens with lead glasses of different equivalent thicknesses and sizes in interventional radiology procedures. Using the human voxel phantom with a more accurate model of the eye and MCNPX software, eye lens doses of the radiologists who wearing different kinds of lead glasses were simulated, different beam projections were taken into consideration during the simulation. Measurements were also performed with the physical model to verify simulation results. Simulation results showed that the eye lens doses were reduced by a factor from 3 to 9 when wearing a 20 cm2-sized lead glasses with the equivalent thickness ranging from 0.1 to 1.0 mm Pb. The increase of dose reduction factor (DRF) was not significant whenever increase the lead equivalent of glasses of which larger than 0.35 mm. Furthermore, the DRF was proportional to the size of glass lens from 6 to 30 cm2 with the same lead equivalent. The simulation results were in well agreements with the measured ones. For more reasonable and effective protection of the eye lens of interventional radiologists, a pair of glasses with a lead equivalent of 0.5 mm Pb and large-sized (at least 27 cm2 per glass) lens are recommended.
journal_name
Radiat Prot Dosimetryjournal_title
Radiation protection dosimetryauthors
Hu P,Kong Y,Chen B,Liu Q,Zhuo W,Liu Hdoi
10.1093/rpd/ncw098subject
Has Abstractpub_date
2017-04-20 00:00:00pages
136-140issue
1eissn
0144-8420issn
1742-3406pii
ncw098journal_volume
174pub_type
杂志文章abstract：:Because of high neutron and gamma-ray intensities generated during bombardment of a thallium-203 target, a thallium target-room shield and different ways of improving it have been investigated. Leakage of neutron and gamma ray dose rates at various points behind the shield are calculated by simulating the transport of...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/ncn099
更新日期：2008-01-01 00:00:00
abstract：:The feasibility of large-geometry Metal Oxide Semiconductor Field Effect Transistor (MOSFET) devices has been assessed for both active and passive neutron dosimetry and use in radiotherapy environments. Neutron sensitivity has been enhanced with the use of polymeric cement surrounding the gate region. Neutron activati...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/nch202
更新日期：2004-01-01 00:00:00
abstract：:A device based on a single silicon detector of special converter/detector design optimised for the determination of the neutron dose equivalent is also used for the determination of the photon dose equivalent. While the neutron dose is determined on the basis of signals corresponding to energy depositions above 1.5 Me...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/oxfordjournals.rpd.a005962
更新日期：2002-01-01 00:00:00
abstract：:Activities were introduced in Kashiwa city in the Tokyo metropolitan area to correspond to the elevated environmental radiation level after the disaster of the Fukushima Daiichi nuclear power plant. These were based on a strong cooperation between local governments and experts. Ambient dose rate and radioactivity of f...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/ncv279
更新日期：2015-11-01 00:00:00
abstract：:(238)U, (232)Th, (222)Rn and (220)Rn concentrations were measured inside various Moroccan black soap samples widely used by the Moroccan population in traditional baths (Hammans) by using both CR-39 and LR-115 type II solid state nuclear track detectors. The measured (238)U, (232)Th, (222)Rn and (220)Rn concentrations...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/ncq275
更新日期：2010-12-01 00:00:00
abstract：:Methodological problems arise on the way of radiation carcinogenesis modelling with the incorporation of radiobiological and cancer biology mechanistic data. The results of biophysical modelling of different endpoints [DNA DSB induction, repair, chromosome aberrations (CA) and cell proliferation] are presented and app...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/ncl463
更新日期：2006-01-01 00:00:00
abstract：:The International Electrotechnical Commission introduced the concepts of exposure index (EI), target exposure index (EIT) and deviation index (DI) to manage and optimize patient dose in real time. In this study, we have proposed an appropriate method for setting the EIT based on the Korean national diagnostic referenc...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/ncaa185
更新日期：2020-11-17 00:00:00
abstract：:The purpose of the multi-centre study was to assess dose area product (DAP) and effective dose of patients undergoing angiography of the lower limbs in Belgium and to investigate the correlation between DAP and effective dose. DAP values were measured in 12 centres and compared with the national diagnostic reference l...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/ncn050
更新日期：2008-01-01 00:00:00
abstract：:Dose response effects of diodes due to the high atomic number of silicon relative to water are investigated. While quality chances in the primary component of a megavoltage beam with depth are minimal. Compton scattered photons are shown to have a substantial effect on the quality leading to their enhanced absorption ...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/oxfordjournals.rpd.a006014
更新日期：2002-01-01 00:00:00
abstract：:In this paper the effect of treatment room and maze layout on the photoneutron and capture gamma dose equivalent in the maze was studied. MCNPX Monte Carlo (MC) code was used to simulate the Varian 2100 C/D Clinac 18 MV and four different room layouts. Two analytical methods, Wu-McGinley and McGinley, were used for do...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/ncp303
更新日期：2010-08-01 00:00:00
abstract：:In circumstances of inhalation exposure the radiotoxicity of radionuclide depends on the fractional deposition of inhaled activity, which is governed by the aerodynamic characteristics of the particles. Although International Commission on Radiological Protection (ICRP) provides default size distribution parameters fo...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/ncx231
更新日期：2018-04-01 00:00:00
abstract：:The purpose of this study was to assess the magnitude of radiation exposure during paediatric CT in Sudanese hospitals. Doses were determined from CT acquisition parameters using CT-Expo 2.1 dosimetry software. Doses were evaluated for three patient ages (0-1, 1-5 and 5-10 y) and two common procedures (head and abdome...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/ncu321
更新日期：2015-12-01 00:00:00
abstract：:The aim of the study was to estimate organ dose rate reduction to a female anthropomorphic phantom, which simulated the cardiologist, during percutaneous coronary interventions (PCI) when the patient's arm support was covered with 0.4-mm lead foil. Organ dose rates were determined using five radiation detectors insert...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/ncz292
更新日期：2020-06-24 00:00:00
abstract：:Thermoluminescene (TL) and mechanoluminescence (ML) properties of gamma-irradiated Dy activated potassium and magnesium mixed sulphate have been studied. (K2Mg2:Dy) (SO4)3 samples having different concentrations of Dy were prepared by solid-state diffusion method. Two distinct peaks, the first approximately 130 degree...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/nci607
更新日期：2006-01-01 00:00:00
abstract：:The localisation of an unknown neutron source in various bulky homogeneous media was studied. For the planar case two (3)He detectors on the opposite faces of a box were used. It is shown that the location of a single small neutron emitting source in a large box can be found to a better than 7% by using two neutron de...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/ncm048
更新日期：2007-01-01 00:00:00
abstract：:In 2012, the International Commission on Radiological Protection issued a recommendation for a reduced annual eye-lens dose limit in the face of mounting evidence of the risk of cataract induction. This led to worldwide research efforts in various areas including the dose simulation in realistic eye-models, the produc...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/ncz295
更新日期：2020-06-24 00:00:00
abstract：:From feedback experience from recent radiation accident cases, in addition to biological dosimetry and physical dosimetry based on Monte Carlo calculations or experimental means, there is a need for complementary methods of dosimetry for radiation accident. Electron paramagnetic resonance (EPR) spectrometry on bones o...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章,评审
doi：10.1093/rpd/ncq341
更新日期：2011-03-01 00:00:00
abstract：:In order to check developed software tools, it was necessary to compare estimates of statistical characteristics of annual absorbed plutonium internal doses obtained by PANDORA and IMBA software with the same original data. The results were compared from dose calculations of five cases with different initial data on p...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/ncx085
更新日期：2017-11-01 00:00:00
abstract：:To develop retrospective dosimetry of unexpected radiation accident, basic studies on violet thermoluminescence (VTL) phenomena were conducted using natural quartz grains. All VTL glowcurves of as-received samples did not exhibit peaks <250 degrees C, although for artificially irradiated quartz samples there were VTL ...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/ncl108
更新日期：2007-01-01 00:00:00
abstract：:In 2011, national diagnostic reference levels (DRLs) were proposed for pain management fluoroscopic procedures in Belgium. The primary goal of this work is to compare the dose area product values (DAP) recorded at the Saint-Luc University Hospital to these DRLs. From 2012 to 2015, 7664 interventional pain management p...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/ncx271
更新日期：2018-05-01 00:00:00
abstract：:This study aims to contribute to the construction of a scenario regarding patient radiation exposure in Brazilian interventional radiology, aiming to provide data for the future drafting of specific legislation on interventional radiology because there is currently a lack of safety regulations for haemodynamics servic...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/ncs172
更新日期：2013-04-01 00:00:00
abstract：:This work describes the dosimetry of a two waveguide cell system designed to expose newborn mice to electromagnetic fields associated with wireless fidelity signals in the frequency band of 2.45 GHz. The dosimetric characterisation of the exposure system was performed both numerically and experimentally. Specific meas...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/ncq129
更新日期：2010-08-01 00:00:00
abstract：:The main purpose of Liulin-type spectrometry-dosimetry instruments (LSDIs) is cosmic radiation monitoring at the workplaces. An LSDI functionally is a low mass, low power consumption or battery-operated dosemeter. LSDIs were calibrated in a wide range of radiation fields, including radiation sources, proton and heavy-...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/ncq506
更新日期：2011-03-01 00:00:00
abstract：:One of the topics covered by the OMINEX (Optimisation of Monitoring for Internal Exposure) project was to look at the bioassay measurements performed in the European laboratories. Questionnaires on bioassay measurements by alpha spectrometry or inductively coupled plasma-mass spectrometry (ICP-MS) were sent to Europea...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/oxfordjournals.rpd.a006261
更新日期：2003-01-01 00:00:00
abstract：:The neutron dose equivalent in aircraft is measured using commercial bubble detectors, but at high altitudes there are not only neutrons but also protons. Bubble detectors have been used because they are considered not to be sensitive to protons, but this has been the subject of only a few studies. In this study, by i...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/nch330
更新日期：2004-01-01 00:00:00
abstract：:Tissue-equivalent proportional counters (TEPCs) have long been considered suitable candidate instruments for more accurate neutron monitors in nuclear power plants. It has also been recognised that the production of truly light-weight devices based on TEPCs requires further effort directed towards increasing their sen...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/ncq538
更新日期：2011-02-01 00:00:00
abstract：:This study aims to develop an Automatic Brain Dose Estimation (ABDE) methodology for head computed tomography examinations. The ABDE is to be applied first to an anthropomorphic Alderson phantom to obtain a Correction factor (Cf) between the ABDE and the direct absorbed brain dose using dosemeters positioned within th...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/ncaa006
更新日期：2020-07-02 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
pub_type： 杂志文章
doi：10.1093/rpd/ncx183
更新日期：2018-04-01 00:00:00
abstract：:Doses in radiology should be as low as reasonably achievable. In order to compare practice in different centres it is necessary to compare patient doses. This can only be undertaken if dosimetry studies are similar. In order to facilitate comparisons, the DIMOND consortium developed a patient dosimetry protocol. Refer...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/nci715
更新日期：2005-01-01 00:00:00
abstract：:To find appropriate substitutions for the expensive plastics of A-150 and rexolite used in the construction of thick gas electron multiplier (THGEM)-based tissue-equivalent proportional counters, in the present work, the responses of a THGEM-based microdosimetric detector made of A-150 and rexolite and three others co...
journal_title：Radiation protection dosimetry
pub_type： 杂志文章
doi：10.1093/rpd/ncw008
更新日期：2017-04-15 00:00:00
