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AIRBORNE RADIOMETRIC MAPPING FOR NATURAL RADIATION ASSESSMENT OVER OKITIPUPA SOUTHEAST BELT OF THE BITUMINOUS SAND FIELD OF NIGERIA Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-12-15 Faruwa A, Qian W, Agbele A, et al.
AbstractAirborne radiometric data were used for natural radiation assessment with the view to assess its likely environmental and health impact, which is one of the major factors that may pose some dangers to both physical and biological components especially during the exploitation of bitumen and also use the assessment as a baseline study that could be useful in planning appropriate environmental
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MEASUREMENT OF RADON ACTIVITY CONCENTRATION IN UNDERGROUND WATER OF BURETI SUB-COUNTY OF KERICHO COUNTY KENYA Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-12-08 Rotich C, Hashim N, Chege M, et al.
AbstractThe activity concentration of radon in underground water of Bureti sub-county was measured using liquid scintillating counter device. The average radon activity concentration in all the water samples was 12.41 Bql−1. The maximum and minimum activity concentrations of radon were 22.5 and 4.57 Bql−1, respectively. In total, 53% of the total samples analysed had radon concentration levels above
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AN INTERVENTIONAL CARDIOLOGY INVESTIGATION: PATIENT EXPOSURE TO RADIATION AND INTER-OPERATOR VARIABILITY IN AN IRISH SETTING Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-12-14 Anderson J, Zanardo M, Smyth B, et al.
AbstractAim: To evaluate patient radiation exposure for Diagnostic Coronary Angiography (DCA) and Percutaneous Cardiac Intervention (PCI) performed by different operators. Methods and Results: Retrospective (n = 160) and prospective (n = 62) data for DCA (n = 179) and PCI (n = 43) examinations performed by interventional cardiologists (n = 3) using the same imaging equipment were reviewed. The operator
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POTENTIAL ENVIRONMENTAL HAZARD TO THE PUBLIC FROM THE OPERATION OF URANIUM MINING AND MILLING FACILITY Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-12-11 Rweyemamu M, Kim J.
AbstractMining and milling processes could cause potential radiological exposures to the public. The objective of this study was to estimate the off-site radiological doses expected to be received by the public as a result of uranium mining and milling activities at Mkuju River Project in the United Republic of Tanzania. MILDOS-AREA was used to estimate off-site doses along with RESRAD-OFFSITE for
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SUBOPTIMAL MODULATION OF RADIATION DOSE IN THE COMPUTED TOMOGRAPHY COMPONENT OF WHOLE-BODY POSITRON EMISSION TOMOGRAPHY/COMPUTED TOMOGRAPHY Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-12-11 Inoue Y, Adachi M, Shimizu H, et al.
AbstractRadiation exposure in computed tomography (CT) is automatically modulated by automatic exposure control (AEC) mainly based on scout images. To simulate the whole-body positron emission tomography/CT, CT images of a phantom were obtained using the posteroanterior scout image alone (PA scout) or the posteroanterior and lateral images (PA + Lat scout). Old and new versions of the AEC software
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COSMIC RADIATION EXPOSURE CALCULATIONS FOR INTERNATIONAL AND DOMESTIC FLIGHTS DEPARTS FROM ISTANBUL AND ANKARA Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-12-10 Susam L, Alan H, Yilmaz A, et al.
AbstractIn this study, cosmic radiation doses were calculated for domestic and international flights departing from Istanbul and furthermore for domestic flights departing from Ankara using a software program called CARI-7A and also a mathematical method approach. Main parameters for calculating cosmic radiation are vertical cut-off rigidity, flight duration, latitude–longitude and altitude of the
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ASSESSMENT OF OCCUPATIONAL RADIATION DOSES OF MEDICAL RADIATION WORKERS IN TWO COMMUNITY HOSPITALS Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-12-08 Osei E, Nuru F, Moore M.
AbstractThe International Commission on Radiological Protection recommends the adoption of the linear, no-threshold model as a predictive risk model for radiation protection purposes since the relationship between low-dose radiation exposure and cancer risk is unclear. Medical radiation workers are subject to occupational exposures and differences in workload, area of work and types of exposure can
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A SURVEY STUDY OF RADIATION PROTECTION AWARENESS AMONG RADIOLOGY TECHNICIANS IN MOGADISHU, SOMALIA Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-12-07 Aras S, Tanzer I, Ikizceli T.
AbstractWe investigate the ionizing radiation exposure awareness and subject matter knowledge among clinical radiology technicians working in state and private hospitals in Mogadishu, Somalia. Research data are collected via face to face interviews with a prepared questionnaire performed between April and May 2018 in Mogadishu, Somalia. A total of 61 clinical radiology technicians working in 10 state
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DEVELOPMENT OF NACL-BASED OPTICALLY STIMULATED LUMINESCENT PHOSPHORS FOR THE POSSIBLE APPLICATIONS IN DOSIMETRY Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-12-07 Gaikwad S, Patil R, Kulkarni M, et al.
AbstractNew highly sensitive optically stimulated luminescent phosphors with NaCl moiety and dopants Ca,Cu,P/Mg,Cu,P are developed. These phosphors show very high optically stimulated luminescence (OSL) sensitivity. The dose response for NaCl:Ca,Cu,P is linear up to 1.2 Gy and for NaCl:Mg,Cu,P is slightly sub linear from 0.2 Gy. These phosphors show 30% fading during first 4 and later signal gets stabilised
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TRANSMISSION COEFFICIENT OF POWER DENSITY INTO SKIN TISSUE BETWEEN 6 AND 300 GHZ Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-12-04 Christ A, Samaras T, Neufeld E, et al.
AbstractThe latest electromagnetic safety guidelines define transmitted or epithelial power density as the basic restriction above 6 GHz. In this note, we derive an approximation for a conservative transmission coefficient for quasi plane wave incidence as a function of the frequency for the normal component of the Poynting vector with respect to the evaluation plane or tissue surface |Sz inc| and
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UNCERTAINTY OF THERMOLUMINESCENCE AT LOW DOSE LEVELS: A MONTE-CARLO SIMULATION STUDY Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-11-30 Sadek A.
AbstractThe purpose of the current work is to investigate the effect of the scatter data and the background noise level on the uncertainty of the thermoluminescence (TL) measurements. The Monte-Carlo (MC) algorithm has been used to simulate the scattering data and the background noise signal in TL glow-curve. Under the simulation and experimental parameters used in the present study, a new general
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210PO IN SOIL AND TOBACCO LEAVES IN QUANG XUONG, VIETNAM AND ESTIMATION OF ANNUAL EFFECTIVE DOSE TO SMOKERS Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-11-24 Van Duong H, Thanh Nguyen D, Peka A, et al.
Abstract210Po is the main radiotoxic chemical in tobacco smoke and one of the primary causes of lung cancer. Investigating 210Po concentration in tobacco is important in estimating the annual effective dose (AED) due to smoking. In this study, the 210Po concentrations in tobacco leaves and soil in Quang Xuong, Vietnam were measured using a high-resolution passivated and implanted planar silicon detector
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ASSESSING THE COMPLIANCE OF ELECTROMAGNETIC FIELDS RADIATED BY BASE STATIONS AND WIFI ACCESS POINTS WITH INTERNATIONAL GUIDELINES ON UNIVERSITY CAMPUS Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-11-24 Keshmiri S, Gholampour N, Mohtashami V.
AbstractThis paper presents a series of electromagnetic field measurements performed on the campus of Ferdowsi University of Mashhad in order to assess the compliance of radiation levels of cellular base stations and WiFi access points with international guidelines. A calibrated, broadband and isotropic probe is used and recommendations of International Telecommunication Union (ITU) are followed up
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FOREWORD Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-11-27 Rovenská K, Thinová L.
The long-awaited ICRP Publication 137 issued in 2017 brought us the new dose conversion coefficients in black and white. From the first moment, we were clear on the main topic for the 9th Conference on Protection against Radon at Home and at Work. New values of the conversion factor for the calculation of effective dose from inhalation of radon and its progenies bring us new challenges, mainly in the
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Neutron and Gamma Albedo Evaluation at an Irradiation Facility Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-12-23 Riccardo Ciolini; Andrea Marini; Valerio Giusti; Francesco d’Errico
The irradiation facility of the University of Pisa (UNIPI) is a neutron and gamma irradiation facility of the University of Pisa used for calibration purposes and to evaluate detectors and dosemeters for mixed neutron and gamma fields. The facility consists of a fairly large room (5.0 × 7.8 × 2.5 m3) with concrete walls and roof designed to minimise radiation scattering. Sealed neutron and gamma radionuclide
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CALCULATION OF CONVERSION COEFFICIENTS FOR VOXELIZED PHANTOMS FOR CRITICALITY ACCIDENT DOSIMETRY Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-09-30 Chevallier M, Pontier J, Morin H, et al.
AbstractIn the event of a criticality accident, not only the maximal doses received by the victims must be determined but it is also crucial to evaluate the doses to the different organs. With a neutron component, morphology is a key parameter in the organ dose calculation. As the simulation tools can be time consuming to proceed, especially if morphology is taken into account, for all the victims
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PATIENT-SPECIFIC ORGAN DOSES FROM PEDIATRIC HEAD CT EXAMINATIONS Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-09-28 Garzón W, Aldana D, Cassola V.
AbstractThe aim of this work was to estimate patient’s organ absorbed doses from pediatric helical head computed tomography (CT) examinations using the Size-Specific Dose Estimate (SSDE) methodology and to determine organ dose to SSDE conversion coefficients for clinical routine. Patient-specific organ and tissue absorbed doses from 139 Head CT scans performed in pediatric patients from 0 to 15 years
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CORRIGENDUM TO: TOWARD NATIONAL CT DIAGNOSTIC REFERENCE LEVELS IN THE UNITED ARAB EMIRATES: A MULTICENTER REVIEW OF CT DOSE INDEX AND DOSE LENGTH PRODUCT Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-09-29 Abuzaid M, Elshami W, El Serafi A, et al.
In the originally published version of this manuscript, there was an error in the title. The title should read: ``Towards national CT diagnostic reference levels in the United Arab Emirates a multicenter review of CT dose index and dose length product'' instead of ``Towards national CT diagnostic reference levels in the United Arab Emirates a multicenter review of CT dose index and dose area product''
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EFFECTIVE INDOOR DOSE OF GAMMA RADIATION FROM BUILDING MATERIALS: COMPARISON OF SEVERAL METHODS FOR ESTIMATION AND POSSIBLE UNDERESTIMATE Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-09-28 M Krmar; K Milić; I Arsenić; J Hansman
This paper compares several methods for estimation of the effective indoor dose of gamma radiation from building materials. It was found that specific dose ratios proposed for 3 cm thick layers in one recommendation gives 2.8 times lower value of gamma dose than other methods. The most common case is that granite has an elevated content of natural radionuclides and it is usually used in the form of
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Local Study of Diagnostic Reference Levels for Computed Tomography Examinations of Adult Patients in İzmir, Turkey. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-09-19 Ayşegül Yurt,İsmail Özsoykal,Recep Kandemir,Emel Ada
This study aims to develop local diagnostic reference levels (DRLs) for the most common computed tomography (CT) examinations carried out around Izmir, Turkey.
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DOSIMETRY WITH THE ABILITY TO DISTINGUISH PULSED AND NON-PULSED DOSE CONTRIBUTIONS. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-09-17 Krystsina Makarevich,Roland Beyer,Jürgen Henniger,Yuzhen Ma,Sarah Polter,Marian Sommer,Tobias Teichmann,David Weinberger,Thomas Kormoll
The concept of an active dosimetry system for pulsed radiation dose rate measurements is presented. Real-time distinction of pulsed and non-pulsed radiation contributions is based on the time structure of a single interaction. A fast tissue equivalent plastic scintillator is exploited to minimize the pile-up effect influence on absorbed energy measurements. Being connected to a fully digital signal
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Assessing Radiation Exposure Inside the Earth's Atmosphere. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-09-09 Anastasia Tezari,Pavlos Paschalis,Helen Mavromichalaki,Pantelis Karaiskos,Norma Crosby,Mark Dierckxsens
The study of the particle showers created inside the Earth’s atmosphere due to interactions of cosmic rays of solar and galactic origin is of great importance for the determination of the radiation impact on technological and biological systems. DYASTIMA is a Geant4-based software application that simulates the evolution of secondary particle cascades inside the atmosphere of Earth. DYASTIMA-R is a
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Proposed National Diagnostic Reference Levels for Standard Radiographic X-Ray Procedures in Sudan. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-09-09 Nada A Ahmed,E H Basheir,A B Farah,T S Mohammedzein,I I Suliman
This study aimed to calculate patient radiation doses for adults during the seven most commonly performed conventional X-ray procedures, and to propose national diagnostic reference levels (DRLs). A representative sample of patients from 29 hospitals was included. The entrance surface air kerma (ESAK) was calculated by measuring X-ray tube output and the corresponding technical and exposure factors
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Adding Two New Contact Circumstances to 'Merged Phantom Tool' and a Technique to Convert Structure Information Segmented by the Carimas Software Into Geant4 Geometry. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-09-09 Nguyen Thi Phuong Thao,Nguyen Thien Trung,Nguyen Khanh Duy,Nguyen Thanh Danh,Pham Tien Anh,Nguyen Dong Son
AbstractTwo new contact circumstances called ‘stand-lie’ and ‘front–rear’ are implemented to the merged phantom tool. To allow more flexibility for users when they calculate the dose for a volume of interest (VOI) with arbitrary geometry, an optional utility to convert segmented structure information from the CARIMAS software into parallel geometry of GEANT4 is provided. The effective dose for a person
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Field Enhancement and Size of Radio-Frequency Hotspots Induced by Maximum Ratio Field Combining in Fifth Generation Network. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-09-09 Maarten Velghe,Sergei Shikhantsov,Emmeric Tanghe,Luc Martens,Wout Joseph,Arno Thielens
AbstractThe goal of this paper is to experimentally assess the field enhancement and hotspot size of radio frequency electromagnetic fields created by the Maximum Ratio Combining (MRC) precoding scheme using lab measurements at 3.5, 5.5 and 11 GHz. MRC is an adaptive precoding scheme used by Massive Multiple Input Multiple Output systems, one of the enabling techniques of the fifth generation of telecommunications
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Benchmarking the Dose Map Software for Clinical Implementation and Establishment of a Local Follow-Up Protocol for the Management of Skin Injures Following Complex Interventional Cardiology Procedures. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-09-09 Chadia Rizk,Antoine Sarkis,Alice Bejjani,Jérémie Dabin,Jad Farah
AbstractThis paper aims to validate the accuracy of the peak skin dose (Dskin,max) computed by the Dose Map software (DMS)—general electric and establish a local follow-up protocol for the management of patient skin injuries following complex interventional cardiology procedures (ICPs). Dskin,max was computed by the DMS and was simultaneously measured by a dense mesh of 72 thermoluminescent dosemeters
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Estimation of Photon Energy and Direction Distributions at Japanese Nuclear Power Plants Based On Literature Survey for J-Episode Study. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-09-03 Hiroshige Furuta,Akemi Nishide,Shin'ichi Kudo,Shin Saigusa
AbstractIn order to reconstruct organ-absorbed dose from recorded dose for risk estimation in nuclear worker cohort, the preceding study of the International Agency for Research on Cancer (IARC) 15-Country Collaborative Study estimated the organ dose conversion factor from the recorded dose of Hp(10) under the assumption that on average, in the nuclear power plants (NPPs), 10% of the dose received
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Adult CT Examinations in Algeria: Towards Updating National Diagnostic Reference Levels. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-09-03 Nadia Khelassi-Toutaoui,Ahmed Merad,Virginia Tsapaki,Fouzia Meddad,Zakia Sakhri-Brahimi,Diana Guedioura,Samia Saadi
AbstractA pilot study has concerned the most frequent computed tomography examinations (CT). This represents the first results based on actual survey for diagnostic reference levels (DRLs) establishment in Algeria. A total number of 2540 patients underwent this survey that has included the recording of CT parameters, computed tomography dose index (CTDIvol) and dose-length product of the head, thorax
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Evaluation of Indoor/Outdoor Gamma Exposure Rates and Excess Life Time Cancer Risk in Different Cities of Pakistan. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-09-03 Jahan Zeb,Mohammad Wasim,Muhammad Awais,Asad Ullah,Talat Iqbal,Sheraz Akhtar
AbstractThis study presents a detailed measurement of indoor and outdoor terrestrial gamma radiation levels in different cities of Pakistan. The measurements covered dwellings in 27 cities, covering all provinces and region of Azad Kashmir. Most of the houses were of attached type, made of brick walls and concrete roofs. The measurements were made by a handheld radiation survey meter containing Geiger–Muller
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Machine Learning Algorithms for Identification of Abnormal Glow Curves and Associated Abnormality in Caso4:Dy-Based Personnel Monitoring Dosimeters. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-08-28 Munir S Pathan,S M Pradhan,T Palani Selvam
AbstractIn the present study, machine learning (ML) methods for the identification of abnormal glow curves (GC) of CaSO4:Dy-based thermoluminescence dosimeters in individual monitoring are presented. The classifier algorithms, random forest (RF), artificial neural network (ANN) and support vector machine (SVM) are employed for identifying not only the abnormal glow curve but also the type of abnormality
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Effect of Working Conditions and Natural Radioactivity Levels on Occupational Doses to Workers of an Old Manganese Mine. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-08-27 Mohamed H E Monged
The aim of this work was to use RESRAD-Build model to predict the resulting external and internal radiological doses received by the workers of manganese mine located in Southern Sinai. In order to achieve that goal, measurement of the activity concentrations of natural radionuclides in rock samples collected from the inside gallery of such mine, using hyper pure germanium (HPGe) detector. Radon gas
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Estimation of Radiological Hazards Due to Natural Radionuclides from The Rosterman Gold Mine Tailings, Lurambi, Kakamega, Kenya. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-08-27 C K Wanyama,F W Masinde,J W Makokha,S M Matsitsi
AbstractRadiological hazards associated with naturally occurring radionuclides in materials from Rosterman gold mine were assessed by analysis of 30 samples. The gamma-ray spectrometric analysis of tailing samples reported an average activity concentration of 263 ± 13, 123 ± 6 and 84 ± 4 Bq kg−1 for 40K, 232Th and 226Ra, respectively. The average absorbed dose rate was 124 ± 6 nGy h−1, while the annual
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CORRIGENDUM TO: PHOTON FIELD OF ~100-200 KEV FOR ENVIRONMENTAL DOSEMETER CALIBRATION. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-08-26 S M Tajudin,Y Namito,T Sanami,H Hirayama
The Acknowledgements were missing from the originally published article. These have now been added in the online version of the article.
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Caesium Retention Characteristics of Knifc-Pan Resin from River Water. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-08-19 Miklós Hegedűs,Hirofumi Tazoe,Guosheng Yang,Yuki Tamakuma,Masahiro Hosoda,Naofumi Akata,Shinji Tokonami
The caesium retention characteristics of a potassium-nickel hexacyanoferrate resin in a polyacrylnitrile (KNiFC–PAN) matrix were tested in fresh water over the range of 2.5–400 mL min−1. The experimental setup used 2 mL resin and 4-L aliquots of freshwater samples. The results showed nearly 100% retention at speeds below 10 mL min−1, above 80% up to 100 mL min−1, and approached 50% at 400 mL min−1
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Absolute Measurement of 14.57 mev Neutron Fluence Rate Using Proton Recoil Neutron Telescope. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-08-11 Shobha Ghodke,V Sathian,Yashoda Singh,Tarun Patel,S Santra
A single stage vacuum-type proton recoil neutron telescope (PRT) was used for accurate measurement of 14.57 MeV neutron fluence rate from an indigenously developed D-T neutron generator at Purnima, BARC. The telescope consists of a polyethylene radiator having 4 cm diameter and CsI (Tl) scintillation crystal having thickness 1.5 mm and 4 cm diameter separated by 20.5 cm kept in a vacuum chamber. The
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Estimation of Radiological Exposure Levels in a Mining Area Based on 238U, 226Ra, 232Th and 40K Activity Measurements: A Case Study for Beylikova-Sivrihisar Complex Ore Site in Turkey. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-08-11 Haluk Yücel,Süleyman Övüç,Gizem Akkaya,Şadiye Çakmak
The study estimated the radiological exposure levels in a mining area for miners in the Beylikova-Sivrihisar (Turkey) complex ore site containing 238U, 226Ra and 232Th. Sixty samples were collected from the study area based on a geologic map. The radionuclide activities were measured using a 78.5% efficient n-type HPGe detector. The measured mean activities were 1871 ± 38 Bq kg−1 for 238U, 1749 ± 5 Bq kg−1
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Estimation of Thermal Power Plant Workers Exposure to Magnetic Fields and Simulation of Hazard Zones. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-08-11 Majid Bagheri Hosseinabadi,Narges Khanjani,Mohammad Hossein Ebrahimi,Jamal Biganeh
Extremely low-frequency magnetic fields (ELF-MFs) have raised some concerns due to their possible effects on workers’ health. In this study ELF-MFs were measured in different units of the thermal power plant based on gridding the indoor space. The exposure level was measured by spot measurement based on the IEEE Std C95.3.1 and then simulated in units with the highest magnetic field intensity by using
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Extraoral and Cbct Dental Exposures in Portugal. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-08-11 Hugo Trindade,Inês Morais,Abigail Moreira
Data from dental extraoral and cone beam computed tomography (CBCT) exposures in Portugal (2019) were gathered, and patient doses for standard adult exams were evaluated. In panoramic X-rays, 442 units (34% of the existing licensed units) were tested, with a third quartile value (PKA) of 82 mGy.cm2. For cephalometric radiography (88 units), the third quartile value (Ki) was 0.3 mGy for the posteroanterior
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ERRATUM TO: CHARACTERIZATION OF AN IN-HOUSE DEVELOPED MULTI-CYLINDRICAL MODERATOR NEUTRON SPECTROMETER. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-08-10 T Liamsuwan,J Channuie,S Wonglee,M Kowatari,S Nishino
In the above article the page numbers for incorrectly listed as 1–4 instead of 94–97. This has been corrected online. The publisher regrets the error.
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Off-Site Radiological dose Assessment in a Severe Nuclear Accident Of Apr1400. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-08-06 Gazi Muhammad Borhan Uddin,Juyoul Kim
Shin Kori unit 3 of Korea Hydro and Nuclear Power Co. is the pressurized water reactor of advanced power reactor 1400 (APR1400) in the Republic of Korea. A hypothetical accident was assumed for Shin Kori unit 3 to perform the time-dependent dose calculations along with the release rates of radionuclides to the environment. In order to assess the accident scenarios, Radiological Assessment System for
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Repeat Chest Ct Scans In Moderate-to-Severe Patients' Management During the Covid-19 Pandemic: Observations From a Single Centre in Wuhan, China. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-07-31 Lang Chen,Qiuxia Wang,Hongyu Wu,Junwu Hu,Jing Zhang
To observe the rates of repeated computed tomographic scans (CTs) in a cohort of patients with coronavirus disease-2019 (COVID-19) and to assess the validity of repeat CTs.
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The Validation of Comprehensive Software for the Assessment of Radiological Impacts on Humans Through Benchmark Analysis with Radiological Codes. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-07-29 Ali Haghighi Shad,Mitra Athari Allaf,Darioush Masti,Kamran Sepanloo,Seyed Amir Hossein Feghhi
In this paper, a novel domestic code called KIANA was developed for the assessment of radiological impacts on the population in normal and accident conditions including design basis accident (DBA) and beyond DBA (BDBA) for the nuclear power plants. The validation process of the KIANA code was performed using the results of the DOZA_M radiological code, whose results are presented in the Final Safety
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Toward National CT Diagnostic Reference Levels in the United Arab Emirates: A Multicenter Review of CT Dose Index and Dose Area Product. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-07-22 Mohamed M Abuzaid,Wiam Elshami,A El Serafi,T Hussien,J R McConnell,H O Tekin
This multicenter study evaluated computed tomography dose index volume (CTDIvol) and dose length product (DLP) to contribute to establishing computed tomography (CT) national diagnostic reference levels (NDRLs) in the United Arab Emirates (UAE). Data from 240 patients, who underwent CT head, chest, abdomen–pelvis and urography examinations, were analyzed, including patient age, sex and weight, CTDIvol
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Assessment of Occupational Exposure of Radiation Workers At a Tertiary Hospital in Anhui Province, China, During 2013-18. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-07-14 Guoliang Zhang,Jianmin Shen,Pin Bao,Ziqin Yao,Yuan Yuan,Shiyuan Fang
Data on occupational radiation exposure of radiation workers at a tertiary hospital in China during 2013–18 were analyzed to provide decision-making advice for hospitals and health administrative departments. A total of 1255 exposure records of radiation workers were collected. The average annual effective doses of radiation workers during 2013–18 was 0.4977 mSv, with 1150 (91.63%) records ranging
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CHARACTERIZATION OF EXPOSURE TO ELECTROMAGNETIC EMISSIONS FROM PUBLIC MOBILE SYSTEMS USING THE TIME-AVERAGED AND INTEGRAL-BASED MEASURE. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-07-22 Darko Šuka,Predrag Pejović,Mirjana Simić-Pejović
Since radio frequency (RF) signals from public mobile systems are stochastic and exhibit large temporal variations, the results of measurements, typically E field measurements, are time dependent and highly variable. Therefore, any 6-min measurements and 6-min averaged results to obtain the mean level strength at a given place may not be so reliable when it comes to determine long-term exposure levels
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UNCERTAINTY EVALUATION IN MEASUREMENT OF THE PERSONAL DOSE EQUIVALENT AT NINE INDIVIDUAL MONITORING SERVICES IN ASIA AND THE PACIFIC REGION. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-07-22 Chadia Rizk,Panagiotis Askounis,H Burçin Okyar,John Konsoh Sangau,Samaneh Baradaran,Elham Al Fares,Buddha R Shah,Baldandorj Munkhtsetseg,Leeda Mitrayon,Muditha Rathnayake,Mohamed Ali
This paper presents the results of the evaluation of the uncertainty in measurement of the personal dose equivalent, Hp(10), at nine individual monitoring services (IMSs) in Asia and the Pacific region. Different types of passive dosemeters were type-tested according to the International Electrotechnical Commission 62387 requirements. The uncertainty in measurement was calculated using the Guide to
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RADIATION DOSE ASSESSMENT TO FAMILY MEMBERS TAKING CARE OF NON-CANCEROUS THYROID PATIENTS TREATED WITH I-131 THERAPY IN NUCLEAR MEDICINE DEPARTMENT. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-07-21 Ali Abdulhasan Kadhim,Peyman Sheikhzadeh,Saeed Farzanefar,Shima Yavari,Mohammad Reza Ay
This study aimed to determine the effective doses of caregivers taking care of non-cancerous patients treated with iodine-131 (I-131). Patients (administered 185–1110 MBq of I-131) were given specific radiation safety instructions (RSI). Afterwards, caregivers were provided with thermoluminescent (TLD) dosimeter badges to be worn for 12–28 days when taking care of the patients. At the end of this period
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THE USE OF LOW-DOSE CT WITH ADAPTIVE STATISTICAL ITERATIVE RECONSTRUCTION FOR THE DIAGNOSIS OF URINARY CALCULI. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-07-20 Yingdi Xie,Jingshan Tao,Hailing Liu,Xiaojin Zang,Zhengming Zhang,Guangjie Guo,Bin Liu
This study aimed to explore the diagnosis of urinary calculi through utilisation of low-dose computed tomography (LDCT) with adaptive statistical iterative reconstruction (ASIR). Data from 140 patients that had undergone pathological or operative diagnosis with urinary calculi were analysed. Patients were divided into two groups based on whether they received conventional-dose computed tomography (CDCT)
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RF-EMF EXPOSURE LEVELS IN SENSITIVE LAND USE IN GREECE: EDUCATIONAL UNITS CENSUS IN THE MUNICIPALITY OF KORYDALLOS. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-07-15 Alexias Aris,Kiouvrekis Yiannis,Softa Vasiliki,Kappas Constantin,Tyrakis Charilaos,Theodorou Kiki
The growing popularity of mobile phones and the expansion of network infrastructure in Greece have raised concerns about the possible negative health effects on sensitive groups, such as children, from exposure to long-term radiofrequency electromagnetic fields (RF-EMFs).
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ASSESSMENT OF RADON AND THORON EXHALATION FROM SOILS AND DISSOLVED RADON IN GROUND WATER IN THE VICINITY OF ELEVATED GRANITIC HILL, CHIKKABALLAPUR DISTRICT, KARNATAKA, INDIA. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-07-14 C G Poojitha,B K Sahoo,K E Ganesh,T S Pranesha,B K Sapra
In this paper, we intend to evaluate the rate of radon and thoron exhalation from soil with reference to the underlying bedrock and gamma dose rate in the environment of elevated granitic hill—Nandi hills of Karnataka. The measurement of exhalation rates for all the soil samples collected from study area was carried out using a continuous radon–thoron monitor (Smart RnDuo monitor). The surface exhalation
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ESTIMATION OF HP(3) AMONG STAFF MEMBERS IN TWO NUCLEAR MEDICINE UNITS IN FINLAND. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-07-14 C Lindholm,A Pekkarinen,O Sipilä,A-L Manninen,M Lehtinen,T Siiskonen
The eye lens exposure among 16 technicians in two nuclear medicine departments at university hospitals in Finland was investigated by measuring the operational quantity Hp(3) using EYE-D dosemeters. For all workers, the annual mean Hp(3) was estimated to be 1.1 mSv (max. 3.9 mSv). The relation between Hp(3) to routinely monitored personal dose equivalent Hp(10) was clearly correlated. Considering individual
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RADIOECOLOGICAL IMPACT AND THE ASSOCIATED HAZARDS DUE TO NORM FROM OIL AND GAS PRODUCTION FACILITY IN THE WESTERN DESERT OF EGYPT. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-07-08 Yasser Y Ebaid,Yasser Hassan,Wael M Elshemey
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 were 881.0 ± 42.0, 966.0 ± 43.0 and 143.0 ± 8.0 Bq kg−1, respectively. Both 226Ra and
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ESTIMATION OF HUMAN DOSE OF 188/186RE-HEDP COCKTAIL BASED ON OLINDA/EXM AND DISTRIBUTION DATA IN RATS. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-07-06 Zahra Pourhabib,Hassan Ranjbar,Ali Bahrami Samani
188Re and 186Re are two applicable rhenium medical radioisotopes with complementary features that make them beneficial for different sizes of tumours. The aim of this study is to investigate 188/186Re-HEDP efficacy as a cocktail by calculating absorbed radiation dose in human organs based on biodistribution data obtained by injecting it to normal rats. Three rats were sacrificed at different time intervals
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RADIATION DOSES TO THE EYE LENS AND FOREHEAD OF INTERVENTIONAL RADIOLOGISTS: HOW HIGH AND ON WHAT GROUNDS? Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-07-06 M Psarras,A Ploussi,E Carinou,E Brountzos,S C Spiliopoulos,K Palialexis,A Kelekis,D Filippiadis,I Seimenis,E P Efstathopoulos
The aim of the study was to measure and evaluate the radiation dose to the eye lens and forehead of interventional radiologists (IRs). The study included 96 procedures (lower-limb percutaneous transluminal angioplasties, embolisations/chemoembolisations and vertebroplasties) performed by 6 IRs. A set of seven thermoluminescence dosemeters was allocated to each physician. The highest dose per procedure
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DOSE ASSESSMENT FOR ATMOSPHERIC DISCHARGE OF LONG-LIVED RADIONUCLIDES IN NUCLEAR POWER PLANT DECOMMISSIONING. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-07-06 Chitra S,S Anand,Pradeep Bhargava,Jayant Krishan,Kapil Deo S Singh,M S Kulkarni,D N Sharma
Decommissioning of nuclear power plants is a multistage process involving complex operations like radiological characterization, decontamination and dismantling of plant equipment, demolition of structures, and processing and disposal of waste. Radioactive effluents released into the environment may result in exposure of population through various exposure pathways. The present study estimates the
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EFFECT OF BUILDUP FACTORS ON INDOOR GAMMA DOSE RATE. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-07-06 V Manić,G Manić,D Nikezić,D Krstić
The effect of buildup factors on absorbed dose rate in air and the effective dose from gamma rays of primordial radionuclides in building materials, was investigated in the article. Specific absorbed dose rates were calculated for the standard concrete room, as well as, for rooms where brick and covering building materials were used. For all room models the Harima (G-P) buildup factors were applied
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MEASUREMENT AND ANALYSIS OF THE NEUTRON ENERGY SPECTRUM AND ASSOCIATED OCCUPATIONAL EXPOSURE FROM A SHIELDED241AM-BE SOURCE. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-07-01 Jimmy Steele Stringer,Henry Spitz,Samuel Glover
A set of five Bonner spheres was used to measure the ambient neutron H*(10) dose around an orphan 241Am-Be neutron source shielded with different arrangements and types of neutron-absorbing materials. These results were compared to measurements obtained using a portable radiation dosemeter. The Bonner sphere measurement results identified the presence of a large thermal and intermediate neutron component
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MEASUREMENT OF OPERATIONAL DOSIMETRY QUANTITIES FOR NUCLEAR MEDICINE STAFF. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-06-29 Nahid Dehghan,Sedigheh Sina
According to the ALARA principle, exposure to radiation should be reduced as low as reasonably achievable. This principle is very important in nuclear medicine (NM), and different investigations have been performed by establishing protocols and standards for staff protection. This study aims to measure the operational quantities, personal dose equivalent, Hp (10), Hp (0.07) and Hp (3) for NM staff
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EFFECTS OF LOCAL BUILDING MATERIALS ON INDOOR GAMMA DOSES AND RELATED RADIOLOGICAL HEALTH RISKS, AYVACIK, ÇANAKKALE/TURKEY. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-06-25 Gülcan Top,Yüksel Örgün,Gürsel Karahan,Mark Horvath,Györgyi Kampfl
In situ indoor gamma dose rate measurements were held in 79 dwellings by NaI(Tl) scintillation probe connected portable dose rate meter. For the building materials and impurities (nodules), spectrometric gamma analysis was applied by a high-resolution HpGe detector. For Ahmetçe and Nusratlı villages in Ayvacik/Çanakkale (Turkey), the measured in situ indoor gamma dose rates and related indoor annual
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AVERAGE GLANDULAR DOSES AND NATIONAL DIAGNOSTIC REFERENCE LEVELS IN MAMMOGRAPHY EXAMINATIONS IN TURKEY. Radiat. Protect. Dosim. (IF 0.773) Pub Date : 2020-06-18 Aydın Parmaksız,Gökçe K Ataç,Emine Bulur,Tolga İnal,Aslıhan Alhan
In order to establish national diagnostic reference levels for mammography examinations, entrance skin air kerma, entrance skin dose and average glandular doses (AGDs) were calculated for a total of 25 624 cranio-caudal (CC) and mediolateral oblique (MLO) projections of 6309 patients for 40–49 and 50–64 age groups. The average entrance skin air kerma and entrance skin dose values for both age groups
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