Log in to search using one of your social media accounts:

 

Main problems and suggested solutions for improving radiation protection in medicine in Ibero-American countries. Summary of an International Conference held in Madrid, 2016
During the International Conference on Radiation Protection in Medicine held in Bonn in 2012, several areas for improvement were identified, including specific actions related with justification, optimization, role of manufacturers, radiation protection education and training, strategic research, data collection on medical and occupational exposures, prevention of incidents and accidents, radiation safety culture, risk-benefit dialogue and implementation of the radiation safety standards. The outcomes of the Bonn Conference were summarized in the so-called ‘Bonn Call for Action ’, identifying 10 priority ...
Source: Journal of Radiological Protection - December 11, 2017 Category: Physics Authors: Eliseo Vano, Pablo Jimenez, Raul Ramirez, Javier Zarzuela, Ana Maria Larcher, Eduardo Gallego, Santiago Gonzalez and Maria del Rosario Perez Source Type: research

Summaries of articles in this issue
Summaries of the articles in this issue are given in the PDF file. (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - December 11, 2017 Category: Physics Source Type: research

Long-term monitoring of water treatment technology designed for radium removal —removal efficiencies and NORM formation
A drinking water treatment plant in Viimsi, Estonia, was monitored over three years for iron, manganese, radium-226, radium-228, as well as their daughter nuclides, in order to determine the efficiency of the treatment process, gain an insight into the removal mechanisms and interactions between radium, iron, and manganese, and assess the overall longevity and performance of the technology along with the possible build-up of NORM in the treatment process. During the study, samples were collected from raw water, first and second stage filtrate, consumer water, backwash water and filter materials. The results show cons...
Source: Journal of Radiological Protection - December 6, 2017 Category: Physics Authors: Liie Hill, Siiri Suursoo, Madis Kiisk, Alar Jantsikene, Nele Nilb, Rein Munter, Enn Realo, Rein Koch, Kaisa Putk, Maria Leier, Taavi Vaasma and Kadri Isakar Source Type: research

Monte Carlo simulation of beta particle-induced bremsstrahlung doses
It is well known that protection from the external irradiation produced by beta emitters is simpler than the corresponding shielding of radioactive sources that emit gamma radiation. This is caused by the relatively strong absorption (i.e. short range) of electrons in different materials. However, for strong beta sources specific attention should be paid to the bremsstrahlung radiation induced in the source encapsulation (matrix), especially for emitters with relatively high beta-endpoint energy (1 MeV) that are frequently used in nuclear medicine. In the present work, the bremsstrahlung spectra produced in various m...
Source: Journal of Radiological Protection - December 6, 2017 Category: Physics Authors: D Mrdja, K Bikit, I Bikit, J Slivka, S Forkapic and J Knezevic Source Type: research

A novel technique to optimise the length of a linear accelerator treatment room maze without compromising radiation protection
Simulations with the FLUktuierende KAskade (FLUKA) Monte Carlo code were used to establish the possibility of introducing lead to cover the existing concrete walls of a linear accelerator treatment room maze, in order to reduce the dose of the scattered photons at the maze entrance. In the present work, a pilot study performed at Singleton Hospital in Swansea was used to pioneer the use of lead sheets of various thicknesses to absorb scattered low energy photons in the maze. The dose reduction was considered to be due to the strong effect of the photoelectric interaction in lead resulting in attenuation of the back-s...
Source: Journal of Radiological Protection - December 6, 2017 Category: Physics Authors: I A M Al-Affan, S C Evans, M Qutub and R P Hugtenburg Source Type: research

Integration of risks from multiple hazards into a holistic ALARA/ALARP demonstration
The principle of As Low As Reasonable Achievable (ALARA) stems from the field of radiological protection. In the UK, this principle has been incorporated into the Health and Safety at Work Act 1974 and rather than applying solely to radiological hazards, applies to all hazards in totality. Given that the current methods for assessing hazards are somewhat isolated, in that one hazard is assessed independently of another, it can be challenging to ensure a truly holistic view of the risks, and demonstrate they have been reduced to ALARA or As Low As Is Reasonably Practicable (ALARP) as required in the UK regulatory regi...
Source: Journal of Radiological Protection - December 6, 2017 Category: Physics Authors: P A Bryant, J Croft and P Cole Source Type: research

Low radon exposure and mortality among Jouac uranium miners: an update of the French cohort (1946 –2007)
After the extension of the French cohort of uranium miners with the inclusion of workers employed in the Jouac mines, this article seeks to describe the new Jouac cohort and to estimate mortality risks, as well as to quantify their relation to radon exposure in this extended cohort. The Jouac cohort includes 458 miners hired by the Soci été des Mines de Jouac between 1957 and 2001. There is no measurement of radon exposure before 1978 and so no data were available. Consequently, only the post-1977 Jouac cohort (n  = 314) has been included in the French cohort, creating an extended cohort of 54...
Source: Journal of Radiological Protection - December 6, 2017 Category: Physics Authors: Estelle Rage, Sylvaine Ca ër-Lorho and Dominique Laurier Source Type: research

A national survey on radon remediation in Switzerland
We present and discuss the results of a national survey on radon remediation. The main purpose of the survey was to evaluate the rate of radon remediation in Switzerland and to identify the main reasons for not taking action in cases of high radon levels. Switzerland is strongly affected by radon problems and extensive efforts have been made to map the radon potential and to investigate the most effective methods to reduce radon levels in different buildings. However, since the radon remediation of buildings has been given over to experts in the private sector, and since there is no obligation to report a finished re...
Source: Journal of Radiological Protection - December 6, 2017 Category: Physics Authors: Fabio Barazza, Christophe Murith, Martha Palacios, Walther Gfeller and Emanuel Christen Source Type: research

A Monte Carlo study of organ and effective doses of cone beam computed tomography (CBCT) scans in radiotherapy
Cone-beam CT (CBCT) scans utilised for image guided radiation therapy (IGRT) procedures have become an essential part of radiotherapy. The aim of this study was to assess organ and effective doses resulting from new CBCT scan protocols (head, thorax, and pelvis) released with a software upgrade of the kV on-board-imager (OBI) system. Organ and effective doses for protocols of the new software (V2.5) and a previous version (V1.6) were assessed using Monte Carlo (MC) simulations for the International Commission on Radiological Protection (ICRP) adult male and female reference computational phantoms. The number of proje...
Source: Journal of Radiological Protection - December 6, 2017 Category: Physics Authors: Abdullah Abuhaimed, Colin J Martin and Marimuthu Sankaralingam Source Type: research

Ethics, stakeholders and low doses
Description unavailable (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - November 15, 2017 Category: Physics Authors: Graham Smith and Nicole Martinez Source Type: research

William Jackson ( ‘Jack’) Schull (1922–2017)
Description unavailable (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - November 15, 2017 Category: Physics Authors: Richard Wakeford Source Type: research

Proceedings of the seminar on comparative assessment of the environmental impact of radionuclides released during three major nuclear accidents: Kyshtym, Windscale, Chernobyl (October 1990)
Description unavailable (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - November 15, 2017 Category: Physics Authors: Richard Wakeford Source Type: research

Corrigendum: Contaminant deposition building shielding factors for US residential structures (2015 J. Radiol. Prot. 35 317 –41 [http://https://doi.org/10.1088/0952-4746/35/2/317] )
Description unavailable (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - November 15, 2017 Category: Physics Authors: E D Dickson, D M Hamby and K F Eckerman Source Type: research

Lessons from two cases of radiation induced skin injuries in fluoroscopic procedures in Bulgaria
Background: Radiation-induced injuries to patient skin as a result of fluoroscopy guided interventional procedures are infrequently reported, often misdiagnosed and there is a need to learn lessons from every injury. Methods: This paper describes two cases of radiation induced skin injuries that are, to the best of our knowledge, the first ever reported cases from Bulgaria and possibly from Eastern Europe, and would thus have educational value. Results: The important messages from the skin injuries reported here are: lack of awareness among part of the interventional specialists about the potential for radiation indu...
Source: Journal of Radiological Protection - November 15, 2017 Category: Physics Authors: D Kostova-Lefterova, J Vassileva and M M Rehani Source Type: research

Radiation dose and risk in children undergoing cardiac interventions performed using flat detector angiography systems
The purpose of the study was to measure radiation doses and estimate risk from various beam projections in children undergoing cardiac interventions. The dose area product (DAP) was measured for eleven patent ductus arteriosus device closures (PDA), four atrial septal defect device closures (ASD), and three balloon pulmonary valvuloplasty (BPV) interventions performed using a flat detector system. The total mean DAPs for PDA, ASD and BPV were 1.9 Gycm 2 , 9.8 Gycm 2 and 6.2 Gycm 2 respectively. The fluoroscopic kerma dose rates increased by 10%, 33% and 92% when changing the projection from posterior –anterior ...
Source: Journal of Radiological Protection - November 15, 2017 Category: Physics Authors: Anna Varghese, A Devi, Paul V George and Roshan S Livingstone Source Type: research

The Kr ümmel (Germany) Childhood Leukaemia Cluster: a review and update
The debate surrounding possible adverse health effects from the civil use of nuclear power under normal operating conditions has been on-going since its introduction. It was particularly intensified by the detection of three leukaemia clusters near nuclear installations, i.e. near the reprocessing plants in Sellafield and Dounreay, UK, and near the Kr ümmel nuclear power plant, Germany, the last of which commenced between 1990 and 1991 and was first described in 1992; it continued until 2003, and an elevated risk up to 2005 has been reported in the literature. A number of expert commissions and working groups we...
Source: Journal of Radiological Protection - November 15, 2017 Category: Physics Authors: B Grosche, P Kaatsch, B Heinzow and H-E Wichmann Source Type: research

Response to Dr Baverstock ’s letter to the editor
Description unavailable (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - November 15, 2017 Category: Physics Authors: Manuela Pfinder, Steffen Dreger, Lara Christianson, Stefan Lhachimi and Hajo Zeeb Source Type: research

Letter in response to Pfinder et al on the efficacy of the WHO guidelines on iodine prophylaxis
Description unavailable (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - November 15, 2017 Category: Physics Authors: Keith Baverstock Source Type: research

Corrigendum: Dose assessment from chronic exposure to industrial NORM in iron ore processing ( J. Radiol. Prot. 2017 37 [http://doi.org/10.1088/1361-6498/aa63a2] 402 –21 [http://doi.org/10.1088/1361-6498/aa63a2] )
Description unavailable (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - November 15, 2017 Category: Physics Authors: Franck Dal-Molin, Raymond Fisher, David Frost, David R Anderson and David Read Source Type: research

Characterising endourologist learning curve during percutaneous nephrolithotomy: implications on occupational dose and patients
In this study we have characterised the learning curve for percutaneous nephrolithotomy procedures over 301 cases for six years. Different surrogate parameters of clinical expertise have been used, such as dose area product, total procedure time, fluoroscopy time and personal equivalent doses. In addition, two different endourologists have been monitored; one of whom had specific Radiation Protection training (ICRP 85). Eye lens dose was estimated from thermoluminescent dosimeters. Significant differences were observed between both endourologists, especially in the fluoroscopy time. Finally, both entrance skin dose a...
Source: Journal of Radiological Protection - November 15, 2017 Category: Physics Authors: Jacobo Guiu-Souto, Carlos Otero, Daniel A P érez-Fentes, Carlos Fernández-Baltar, Juan Francisco Sánchez-Garcia, Camilo García-Freire, Miguel Pombar-Cameán and Juan Pardo-Montero Source Type: research

An age-specific biokinetic model for iodine
This paper reviews age-specific biokinetic data for iodine in humans and extends to pre-adult ages the baseline parameter values of the author ’s previously published model for systemic iodine in adult humans. Compared with the ICRP ’s current age-specific model for iodine introduced in Publication 56 (1989, pp 45 –48), the present model provides a more detailed description of the behaviour of iodine in the human body; predicts moderately higher doses to the thyroid for short-lived isotopes of iodine; predicts similar doses to the thyroid for isotopes with half-time greater than a few hours; and, fo...
Source: Journal of Radiological Protection - October 26, 2017 Category: Physics Authors: Rich Leggett Source Type: research

Application of an in vitro digestion model for 210 Po bioaccessibility assessment in seafood
This study aims to investigate the bioaccessibility of 210 Po in seafood and the impact of food preparation on this radionuclide. Polonium bioaccessibility is the fraction of 210 Po mobilised from food matrices into digestive extractants when applying an in vitro digestion model. The degree of bioaccessibility of 210 Po in food has important implications for estimating ingestion doses from this radionuclide. The simulation of gastrointestinal digestion was divided into three stages through the use of synthetic saliva, gastric and bile –pancreas solutions. Following pre-treatment with a saliva solution, raw and ...
Source: Journal of Radiological Protection - October 26, 2017 Category: Physics Authors: Carla Roselli, Donatella Desideri, Laura Feduzi, Lucia Ugolini and Maria Assunta Meli Source Type: research

The experimental study on the emanation power of a flow-through thoron source made from incandescent gas mantles
To improve the quality of the calibration of thoron concentration activity measurement, an experimental study on the emanation power of a flow-through thoron source based on incandescent gas mantles was carried out in this paper. The thoron activity concentrations of the outflowed air from the flow-through source were measured using RAD7, and the quantitative relationship between thoron concentrations and flowrates was studied through theoretical analysis, and the thoron emanation powers were obtained from the fitting of the relationship above. Results show that the thoron concentration decreased with the increasing ...
Source: Journal of Radiological Protection - October 26, 2017 Category: Physics Authors: Yunxiang Wang, Lei Zhang and Qiuju Guo Source Type: research

Reducing radiation exposure with iterative reconstruction: an inter- and intra-scanner analysis
Our purpose in this study was to compare delivered radiation exposure via computed tomography dose index volume (CTDI vol ) and dose length production (DLP) measurements from computed tomography (CT) examinations performed on scanners with and without image-quality enhancing iterative reconstruction (IR) software. A retrospective analysis was conducted on randomly selected chest, abdomen, and/or pelvis CT examinations from three different scanners from 1 January 2013 to 31 December 2013. CTDI vol and DLP measurements were obtained from two CT scanners with and one CT scanner without IR software. To evaluate inter-sca...
Source: Journal of Radiological Protection - October 26, 2017 Category: Physics Authors: Aaron Rohr, Jo Wick, Jacqueline Hill, Carissa Walter, Neville Irani, Shaun Best, Kirk Miller and Ryan Ash Source Type: research

Unintended and accidental medical radiation exposures in radiology: guidelines on investigation and prevention
This paper sets out guidelines for managing radiation exposure incidents involving patients in diagnostic and interventional radiology. The work is based on collation of experiences from representatives of international and national organizations for radiologists, medical physicists, radiographers, regulators, and equipment manufacturers, derived from an International Atomic Energy Agency Technical Meeting. More serious overexposures can result in skin doses high enough to produce tissue reactions, in interventional procedures and computed tomography, most notably from perfusion studies. A major factor involved has b...
Source: Journal of Radiological Protection - October 26, 2017 Category: Physics Authors: C J Martin, J Vassileva, E Vano, M Mahesh, S Ebdon-Jackson, K H Ng, D P Frush, R Loose and J Damilakis Source Type: research

Collateral contamination concomitant to the polonium-210 poisoning of Mr Alexander Litvinenko
Mr Litvinenko died on 23 November 2006, having been poisoned with polonium-210 on 1 November, with evidence of a previous poisoning attempt during October 2006. Measurements of 210 Po in urine samples were made for a large number of people to determine whether they may have been contaminated. In the majority of cases, measured levels were attributable to the presence of 210 Po from normal dietary sources. For a small number of cases, elevated levels provided evidence of direct contamination associated with the poisonings. For one individual, while estimated doses were below thresholds for irreversible organ damage, a...
Source: Journal of Radiological Protection - September 13, 2017 Category: Physics Authors: John Harrison, Tracy Smith, Tim Fell, Jenny Smith, George Ham, Richard Haylock, Alan Hodgson and George Etherington Source Type: research

Dose estimation to eye lens of industrial gamma radiography workers using the Monte Carlo method
The ICRP Statement on Tissue Reactions (2011), based on epidemiological evidence, recommended a reduction for the eye lens equivalent dose limit from 150 to 20 mSv per year. This paper presents mainly the dose estimations received by industrial gamma radiography workers, during planned or accidental exposure to the eye lens, Hp(10) and effective dose. A Brazilian Visual Monte Carlo Dose Calculation program was used and two relevant scenarios were considered. For the planned exposure situation, twelve radiographic exposures per day for 250 days per year, which leads to a direct exposure of 10 h per year, were consider...
Source: Journal of Radiological Protection - September 13, 2017 Category: Physics Authors: Alexandre Roza de Lima, John Graham Hunt and Francisco Cesar Augusto Da Silva Source Type: research

Estimation and comparison of the radiation effective dose during coronary computed tomography angiography examinations on single-source 64-MDCT and dual-source 128-MDCT
Goal. To estimate and compare the radiation dose associated with coronary computed tomography angiography (CCTA) examinations on two multi-detector CT scanners (MDCT), 64-MDCT and 128-MDCT, in daily practice. Methods. Scan parameters of 90 patients undergoing retrospective electrocardiographic gating spiral CCTA exam were recorded during a period on a single-source 64-MDCT and a dual-source 128-MDCT, and average scan parameters were derived that were used for dosimetry. The computed tomography dose index (CTDI) with a pencil ionisation chamber and polymethyl methacrylate body phantom with diameter of 32 cm was measur...
Source: Journal of Radiological Protection - September 13, 2017 Category: Physics Authors: Daryoush Khoramian and Soroush Sistani Source Type: research

Dose assessment following an overexposure of a worker at a Swiss nuclear power plant
Conclusion . The use of different experimental and calculation methods allowed us to accurately estimate the activity of the object and the dose delivered to the diver, useful information for maki... (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - September 13, 2017 Category: Physics Authors: Claude J Bailat, Jean-Pascal Laedermann, S ébastien Baechler, Laurent Desorgher, Abbas Aroua and François O Bochud Source Type: research

Summaries of articles in this issue
Summaries of the articles in this issue are given in the PDF file. (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - September 12, 2017 Category: Physics Source Type: research

Journal of Radiological Protection now offers reviewer recognition with Publons
Description unavailable (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - August 30, 2017 Category: Physics Authors: Maggie Simmons Source Type: research

Re: The high price of public fear of low-dose radiation
Description unavailable (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - August 30, 2017 Category: Physics Authors: Sergei V Jargin Source Type: research

Multiple authorisation radiological assessment tool
Description unavailable (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - August 30, 2017 Category: Physics Authors: Paul Dale, David Copplestone, Victor Peredo-Alvarez and Andrew Tyler Source Type: research

Removal of scatter radiation in paediatric cardiac catheterisation: a randomised controlled clinical trial
This study sought to determine if DNA integrity was compromised by ionising radiation from paediatric cardiac catheterisations and if dose optimisation techniques allowed DNA integrity to be maintained. Materials and methods . Children were imaged using either: (i) an anti-scatter grid (current departmental protocol), (ii) no anti-scatter grid or, (iii) no anti-scatter grid and a 15 cm air-gap between the child and the x-ray detector. Dose area product and image quality were assessed, lifetime attributable cancer risk estimates were calculated and DNA double-strand breakages quantified using the γ H2AX assay. R...
Source: Journal of Radiological Protection - August 30, 2017 Category: Physics Authors: Richard Gould, Sonyia L McFadden, Andrew J Sands, Brian A McCrossan, Simon Horn, Kevin M Prise, Philip Doyle and Ciara M Hughes Source Type: research

Consequences of the radiation accident at the Mayak production association in 1957 (the ’Kyshtym Accident ’)
This paper presents an overview of the nuclear accident that occurred at the Mayak Production Association (PA) in the Russian Federation on 29 September 1957, often referred to as ‘Kyshtym Accident ’, when 20 MCi (740 PBq) of radionuclides were released by a chemical explosion in a radioactive waste storage tank. 2 MCi (74 PBq) spread beyond the Mayak PA site to form the East Urals Radioactive Trace (EURT). The paper describes the accident and gives brief characteristics of the efficacy of the implemented protective measures that made it possible to considerably reduce doses to the exposed population. The...
Source: Journal of Radiological Protection - August 30, 2017 Category: Physics Authors: A V Akleyev, L Yu Krestinina, M O Degteva and E I Tolstykh Source Type: research

Obituary —André Allisy 1924–2017
Description unavailable (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - August 30, 2017 Category: Physics Authors: Hans Menzel Source Type: research

Environmental monitoring through use of silica-based TLD
The sensitivity of a novel silica-based fibre-form thermoluminescence dosimeter was tested off-site of a rare-earths processing plant, investigating the potential for obtaining baseline measurements of naturally occurring radioactive materials. The dosimeter, a Ge-doped collapsed photonic crystal fibre (PCFc) co-doped with B, was calibrated against commercially available thermoluminescent dosimetry (TLD) (TLD-200 and TLD-100) using a bremsstrahlung (tube-based) x-ray source. Eight sampling sites within 1 to 20 km of the perimeter of the rare-earth facility were identified, the TLDs (silica- as well as TLD-200 and TLD...
Source: Journal of Radiological Protection - August 30, 2017 Category: Physics Authors: Z Siti Rozaila, M U Khandaker, S F Abdul Sani, Siti Norbaini Sabtu, Y M Amin, M J Maah and D A Bradley Source Type: research

World Association of Medical Editors (WAME) statement on ‘Predatory Journals’
Description unavailable (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - August 30, 2017 Category: Physics Authors: Richard Wakeford Source Type: research

More than ever, comment on ‘Chernobyl and Fukushima—Where are we now?’
Description unavailable (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - August 30, 2017 Category: Physics Authors: Jungchun Ho, Patricia Chiao-Tzu Lee and Peter Wushou Chang Source Type: research

A double diamond anniversary —Kyshtym and Windscale: the nuclear accidents of 1957
Description unavailable (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - August 30, 2017 Category: Physics Authors: Richard Wakeford Source Type: research

Perinatal mortality after the Fukushima accident
Description unavailable (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - August 30, 2017 Category: Physics Authors: Alfred K örblein and Helmut Küchenhoff Source Type: research

Report on the accident at Windscale No. 1 Pile on 10 October 1957
A serious fire developed in the core of a nuclear reactor at Windscale Works, Sellafield, northwest England, which led to the release of significant quantities of radioactive material  into the environment during 10 –11th October, 1957. In 1957, Windscale Works was operated by the United Kingdom Atomic Energy Authority (UKAEA), and on 15th October it was announced by the Chairman of the UKAEA that a Committee of Inquiry had been established under the chairmanship of Sir William Penney to conduct an investigation into the accident. The Committee sat at Windscale Works during 17 –25th October, intervie...
Source: Journal of Radiological Protection - August 29, 2017 Category: Physics Authors: William Penney, Basil F J Schonland, J M Kay, Jack Diamond and David E H Peirson Source Type: research

Optimisation of imaging protocols in interventional cardiology: impact on patient doses
The purpose of this work is to evaluate the impact of the imaging protocol as part of the optimisation of patient doses in interventional cardiology. This paper reports the results of an initial study to refine the existing fluoroscopy and cine settings, evaluates a new imaging protocol by measuring the image quality and phantom entrance air kerma values, and tests the clinical implementation of the new protocol in terms of the reduction in patient doses and the impact on clinical images. The initial study developed a new fluoroscopy mode using 7.5 frames s −1 (instead of the previous 15 frames s −1 ) wit...
Source: Journal of Radiological Protection - July 27, 2017 Category: Physics Authors: J M Ordiales, E Vano, J M Nogales, J Ramos, J R L ópez-Mínguez, G Martínez, P Cerrato and F J Álvarez Source Type: research

Residential radon in Galicia: a cross-sectional study in a radon-prone area
This study shows the indoor radon exposure distribution in Galicia and estimates the percentage of dwellings exceeding reference levels. It is based on 3245 residential radon measurements obtained from the Galician Radon Map project and from controls of two previous case-control studies on residential radon and lung cancer. Results show a high median residential radon concentration in Galicia (99 Bq m −3 ), with 49.3% of dwellings having a radon concentration above 100 Bq m −3 and 11.1% having a concentration above 300 Bq m −3 . Ourense and Pontevedra, located in South Galicia, are the provinces wit...
Source: Journal of Radiological Protection - July 27, 2017 Category: Physics Authors: Mar ía Lorenzo-González, Alberto Ruano-Ravina, Joaquín Peón, María Piñeiro and Juan Miguel Barros-Dios Source Type: research

Effectiveness of pelvic lead blanket to reduce the doses to eye lens and hands of interventional cardiologists and assistant nurses
The aim of the present study is to analyse quantitatively the potential reduction of doses to the eye lens and the hands of an operator and a nurse by the use of a pelvic lead blanket during coronary angiography (CA) and percutaneous transluminal coronary angioplasty (PTCA) procedures. Thermoluminescent dosimeters were used to assess dose levels to the left eye lens and fingers on both hands of both physician and nurses during single procedures performed with or without the lead blanket. The measurements were carried out at one medical centre and include dosimetric data from 100 procedures. Additional measurements in...
Source: Journal of Radiological Protection - July 27, 2017 Category: Physics Authors: W Grabowicz, J Domienik-Andrzejewska, K Masiarek, T G órnik, T Grycewicz, M Brodecki and A Lubiński Source Type: research

Methods of minimising doses incurred by external exposure while moving in radiation hazardous areas
Radiation doses received by workers during their movement within areas contaminated as a result of events and activities, leading to emergency or existing exposure situations, may provide a substantial contribution to total external exposure during remediation work. This paper describes an approach to minimise worker external exposure in these circumstances, based on graph theory. The paper describes several tasks, including: searching for a route with the lowest dose, searching for an optimal bypass with a given set of control points and searching for the optimal road network coverage. Classical graph theory algorit...
Source: Journal of Radiological Protection - July 27, 2017 Category: Physics Authors: K Chizhov, M K Sneve, S Shinkarev, A Tsovyanov, G M Smith, A Krasnoschekov, A Kosnikov, I Kemsky and V Kryuchkov Source Type: research

Development of an advanced radioactive airborne particle monitoring system for use in early warning networks
Automatic real-time warning networks are essential for the almost immediate detection of anomalous levels of radioactivity in the environment. In the case of Extremadura region (SW Spain), a radiological network (RARE) has been operational in the vicinity of the Almaraz nuclear power plant and in other areas farther away since 1992. There are ten air monitoring stations equipped with Geiger –Müller counters in order to evaluate the external ambient gamma dose rate. Four of these stations have a commercial system that provides estimates of the total artificial alpha and beta activity concentrations in aeros...
Source: Journal of Radiological Protection - July 19, 2017 Category: Physics Authors: A Baeza, J A Corbacho, J M Caballero, M A Ontalba, J Vasco and D Valencia Source Type: research

Current situations and discussions in Japan in relation to the new occupational equivalent dose limit for the lens of the eye
Since the International Commission on Radiological Protection recommended reducing the occupational equivalent dose limit for the lens of the eye in 2011, there have been extensive discussions in various countries. This paper reviews the current situation in radiation protection of the ocular lens and the discussions on the potential impact of the new lens dose limit in Japan. Topics include historical changes to the lens dose limit, the current situation with occupational lens exposures (e.g., in medical workers, nuclear workers, and Fukushima nuclear power plant workers) and measurements, and the current status of ...
Source: Journal of Radiological Protection - July 19, 2017 Category: Physics Authors: Sumi Yokoyama, Nobuyuki Hamada, Toshiyuki Hayashida, Norio Tsujimura, Hideo Tatsuzaki, Tadahiro Kurosawa, Kuniaki Nabatame, Hiroyuki Ohguchi, Kazuko Ohno, Chiyo Yamauchi-Kawaura, Takeshi Iimoto, Takeshi Ichiji, Yutaka Hotta, Satoshi Iwai and Keiichi Akaha Source Type: research

Summaries of articles in this issue
Summaries of the articles in this issue are given in the PDF file. (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - July 18, 2017 Category: Physics Source Type: research