Abstract:
:A Chinese head phantom (CHP) is constructed for evaluating the specific absorption rate (SAR) by the wireless transceivers. The dimensions of the head phantom are within 4 % difference compared with the 95th percentile data from the China's standard. The shell's thickness and the configuration of the pinna are the same as those of the specific anthropomorphic mannequin (SAM). Three computable models for the mobile phones are generated and used in the SAR simulations with the SAM and the CHP. The results show that the simulated SAR from the SAM head is similar. Its morphological reason has been analysed. The authors discuss the conservativeness of the two head phantoms as well. The CHP can be used in the inter-laboratory evaluation for the SAR uncertainty. It can also provide the information for the SAR variability due to physical difference, which will benefit the maintenance and the harmonisation of the standards.
journal_name
Radiat Prot Dosimetryjournal_title
Radiation protection dosimetryauthors
Ma Y,Wang Y,Shao Q,Li C,Wu Tdoi
10.1093/rpd/nct254subject
Has Abstractpub_date
2014-03-01 00:00:00pages
378-88issue
4eissn
0144-8420issn
1742-3406pii
nct254journal_volume
158pub_type
杂志文章abstract::Representative environmental samples (sandy soil, limestone, marble and gravels) collected from Wadi El Assuity, protective area, Assuit governorate in Upper Egypt have been investigated radiometrically using NaI (Tl) gamma-ray spectrometer. The specific activity of the radionuclides in Bq kg⁻¹ for soil ranged between...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncq425
更新日期:2011-06-01 00:00:00
abstract::Various radionuclides are used in nuclear medicine in different diagnostic and therapeutic procedures. Recently, interest has grown in therapeutic agents for some interesting applications in nuclear medicine. Internal dose models and methods in use for many years are well established, and can give radiation doses to s...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章,评审
doi:10.1093/oxfordjournals.rpd.a006306
更新日期:2003-01-01 00:00:00
abstract::Kinetics of dissolution of (238)U, (234)U and (230)Th dust deposited on filters from personal alpha dosemeters was studied by means of a 26-d in vitro dissolution test with a serum ultrafiltrate simulant. Dosemeters had been used by miners at the uranium mine 'Dolní Rozínka' at Rozná, Czech Republic. The sampling flow...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncm455
更新日期:2008-01-01 00:00:00
abstract::This paper describes the sequence of events, medical aspects and dose estimations for two radiographers and their driver who were seriously exposed to an iridium-192 industrial radiography source that became detached from its wind-out cable. The men came to medical attention about 1 month later by which time all three...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.rpd.a006090
更新日期:2002-01-01 00:00:00
abstract::In the frame of the EU Coordination Action CONRAD (coordinated network for radiation dosimetry), WP4 was dedicated to work on computational dosimetry with an action entitled 'Uncertainty assessment in computational dosimetry: an intercomparison of approaches'. Participants attempted one or more of eight problems. This...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncn221
更新日期:2008-01-01 00:00:00
abstract::This article report the measurements on-board a small aircraft at the same altitude and around the same geographic coordinates. The measurements of Ambient Dose Equivalent Rate (H*(10)) were performed in several positions inside the aircraft, close and far from the pilot location and the discrimination between neutron...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncw384
更新日期:2017-11-01 00:00:00
abstract::Between 1952 and 1957, the UK exploded a total of 12 nuclear devices in Australia, and also conducted about 600 'minor trials' that did not involve a nuclear explosion. Over 16 000 Australian servicemen and civilians were involved in the UK tests in Australia. This paper reports the estimation of doses that the Austra...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncp164
更新日期:2009-09-01 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
pub_type: 杂志文章
doi:10.1093/rpd/ncp030
更新日期:2009-02-01 00:00:00
abstract::The radiation doses to patient in computed tomography (CT) in Syria have been investigated and compared with similar studies in different countries. This work surveyed 30 CT scanners from six different manufacturers distributed all over Syria. Some of the results in this paper were part of a project launched by the In...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncq155
更新日期:2010-09-01 00:00:00
abstract::The radon content in groundwater sources depends on the radium concentration in the rock of the aquifer. Radon was measured in water in many parts of the world, mostly for the risk assessment due to consumption of drinking water. The exposure to radon through drinking water is largely by inhalation and ingestion. Airb...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncs186
更新日期:2012-11-01 00:00:00
abstract::The image background resulting from imaged anatomy can be divided into those components that are meaningful to the observers, in the sense that they are recognised as separate structures, and those that are not. These latter components (reffered to as anatomical noise) can be removed using a method developed within th...
journal_title:Radiation protection dosimetry
pub_type: 临床试验,杂志文章
doi:10.1093/rpd/nch526
更新日期:2005-01-01 00:00:00
abstract::Radon-222 concentrations in groundwater from 10 local government areas (LGAs) of Ogun State were measured using AlphaGUARD radon detector and AquaKIT. The mean activity concentration of radon ranged from 1.23 ± 0.21 to 12.68 ± 18.11 Bq.l-1 corresponding to geometric means (GMs) of 1.22- 6.39 Bq.l-1. The radon concentr...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncaa221
更新日期:2021-02-03 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
pub_type: 杂志文章
doi:10.1093/rpd/nct131
更新日期:2013-12-01 00:00:00
abstract::The experimental energy dependence of the electron paramagnetic resonance (EPR) radiation-induced signal at irradiation by photons in the energy range of 13 keV-1.25 MeV was analysed in terms of the absorbed dose in human tooth enamel. The latter was calculated using a Monte Carlo simulation of the photon and electron...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/nch040
更新日期:2004-01-01 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::Described are functions, models and approaches of software tool Emergency Source Term code (ESTE), which is decision support system for crisis staff in case of nuclear or radiological accidents. The first task of ESTE in emergency situation at nuclear facility is to evaluate state of reactor core or state of fuel in s...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncz226
更新日期:2019-12-31 00:00:00
abstract::A sample is provided of the radiological safety issues particular to low energy proton accelerators. 'Low' energy in this context is taken to mean proton energies of less than about 1 GeV. Many of the radiation issues are common to all particle accelerators. Here, those issues are addressed that may require perhaps no...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章,评审
doi:10.1093/oxfordjournals.rpd.a006619
更新日期:2001-01-01 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::Two types of thin LiF:Mg,Cu,P detectors, GR-200F and MCP-Ns, have been characterised for use in the design of an extremity dosemeter for mixed beta-photon radiation fields. Both detectors consist of an extremely thin layer of sensitive material with effective thicknesses of 5 and 8 mg cm(-2), respectively, held in a 5...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/nci586
更新日期:2006-01-01 00:00:00
abstract::High-energy neutrons (>10 MeV) contribute substantially to the dose fraction but result in only a small or negligible response in most conventional moderated-type neutron detectors. Neutron dosemeters used for radiation protection purpose are commonly calibrated with (252)Cf neutron sources and are used in various wor...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncu298
更新日期:2015-04-01 00:00:00
abstract::During the European Concerted Action SENTINEL 'Safety and Efficacy for New Techniques and Imaging using New Equipment to Support European Legislation', protocols for commissioning and constancy tests for dynamic digital flat detectors angiography units have been developed in order to harmonise practice among the Europ...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章,多中心研究
doi:10.1093/rpd/ncn016
更新日期:2008-01-01 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::This study characterises and evaluates an Al2O3:C-based optically stimulated luminescent dosemeter (OSLD) system, commercially known as the nanoDot™ dosemeter and the InLight® microStar reader, for personal and in vivo dose measurements in diagnostic radiology. The system characteristics, such as dose linearity, reade...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncz186
更新日期:2019-12-31 00:00:00
abstract::Biological dosimetry relies on the assessment of dose in peripheral blood lymphocytes (PBL) of a victim. Variability in the individual radiosensitivity of PBL has an impact on the precision of dose estimate and radiation-induced micronuclei show a strong individual variability. A factor which can influence the radiose...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncl545
更新日期:2007-01-01 00:00:00
abstract::The variety of radiative models for solar UV radiation is discussed. For the evaluation of measured UV radiation at the ground the basic problem is the availability of actual values of the atmospheric parameters that influence the UV radiation. The largest uncertainties are due to clouds and aerosol, which are highly ...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncp211
更新日期:2009-12-01 00:00:00
abstract::Radiation accidents are fortunately infrequent occurrences, but since their consequences can be very serious as in the Chernobyl and the Fukushima nuclear accidents, medical management of radiation accidents is of great importance. Besides several other tasks, medical management of radiation accidents is one of the ke...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncs159
更新日期:2012-10-01 00:00:00
abstract::The main dosimetric properties are reported of a new perovskite, LiMgF3, doped with Ce, Er and Dy impurities. An annealing temperature of 400 degrees C for one hour is necessary to erase any previous signal and to stabilise its sensitivity. A readout up to 450 degrees C gives the same result. The glow curve structure ...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.rpd.a005858
更新日期:2002-01-01 00:00:00
abstract::Monte Carlo simulations were used to assess secondary neutron doses received by patients treated with proton therapy for ocular melanoma and craniopharyngioma. MCNPX calculations of out-of-field doses were done for ∼20 different organs considering realistic treatment plans and using computational phantoms representati...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/nct283
更新日期:2014-10-01 00:00:00
abstract::The novel DIS-1 dosemeter developed by RADOS is based on ionisation chambers with so-called Direct Ion Storage (DIS). The dosemeter can measure Hp(10) and Hp(0.07) of photon and Hp(0.07) of beta irradiation. The characteristics of the commercially available DIS-1 dosemeter were studied at the Paul Scherrer Institute, ...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.rpd.a005984
更新日期:2002-01-01 00:00:00
abstract::Flat-panel X-ray detectors for fluoroscopy represent a modern imaging equipment that is being implemented in paediatric cardiac catheterisation laboratories. Infants and children represent a group of patients with a high radiosensitivity. A survey of 273 (126 diagnostic and 147 therapeutic) paediatric catheterisations...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncn035
更新日期:2008-01-01 00:00:00