Gamma radiation shielding properties of some Bi-Sn-Zn alloys
We investigate the gamma radiation shielding properties of some Bi-Sn-Zn alloys. For this study, we
synthesised five bismuth-based lead-free alloy samples using the melt quench technique with the
composition Bi50Sn ##IMG## [http://ej.iop.org/images/0952-4746/40/1/296/jrpab6aafieqn1.gif]
{$(50-x)$} Zn ##IMG## [http://ej.iop.org/images/0952-4746/40/1/296/jrpab6aafieqn2.gif] {$x,$} where
##IMG## [http://ej.iop.org/images/0952-4746/40/1/296/jrpab6aafieqn3.gif]
{$x=0,10,20,30,40\,\mathrm{wt} \% .$} Apart from physical parameters such as the weight, density,
and thickness of the alloy samples, we estimated their optimum th...
Source: Journal of Radiological Protection - February 20, 2020 Category: Physics Authors: Nisha Rani, Yogesh K Vermani and Tejbir Singh Source Type: research
‘Why’ transforms information transfer into effective communication in radiological protection
As scientists and professionals, we have been trained to present and lecture in front of an audience
of similarly instructed peers, we subject our manuscripts to peer-review, and we mentor the next
generation of radiological protection professionals to adopt the same methods of information
transfer we equate with ‘scientific communication.’ The scientific community clearly has developed
effective and efficient means to share progress in a given field of study. However, current efforts
to improve our success in achieving public understanding of our most important and pertinent
conclusions, and in communicating the...
Source: Journal of Radiological Protection - February 20, 2020 Category: Physics Authors: Alexander Brandl and Manfred Tschurlovits Source Type: research
Chernobyl, Home Box Office (HBO)/Sky Atlantic television mini-series, May –June 2019
Description unavailable (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - February 20, 2020 Category: Physics Authors: Richard Wakeford Source Type: research
SRP workshop on ‘communication of radiation risk in the modern world’
Communicating radiation risk is an important part of radiation protection. However, achieving
effective risk communication is challenging given the negative public perception of radiation and
conflicting views presented by both the media and social media. Noting the importance of building
capacity amongst radiation protection professionals to communicate radiation risk effectively, the
Society for Radiological Protection (SRP) ran a half-day workshop at its Annual Conference on the
22nd May 2019 in Scarborough Spa, UK. A number of key factors were identified that should be
considered when communicating with the publi...
Source: Journal of Radiological Protection - February 20, 2020 Category: Physics Authors: P A Bryant, H Yoshida, M Butlin, M D Wood, K Raines, A Bannon and S Hunak Source Type: research
Perinatal mortality after the Fukushima accident: a comment
Description unavailable (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - February 20, 2020 Category: Physics Authors: Sergei V Jargin Source Type: research
Epidemiological studies of natural sources of radiation and childhood cancer: current challenges and
future perspectives
The empirical estimation of cancer risks in children associated with low-dose ionising radiation
( (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - February 18, 2020 Category: Physics Authors: Antonella Mazzei-Abba, Christophe L Folly, Astrid Coste, Richard Wakeford, Mark P Little, Ole Raaschou-Nielsen, Gerry Kendall, Denis H émon, Atte Nikkilä, Claudia Spix, Anssi Auvinen and Ben D Spycher Source Type: research
Ruby anniversary of the journal
Description unavailable (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - February 16, 2020 Category: Physics Authors: Richard Wakeford and Mike C Thorne Source Type: research
Effects of scout radiographic imaging conditions on tube current modulation in chest computed
tomography
For the optimisation of radiation dose in computed tomography (CT), dose reduction is attempted
while preserving diagnostic performance. To reduce the overall radiation dose related to CT, the
dose from scout radiography may be reduced by decreasing the tube voltage and tube current. We
evaluated the effects of scout imaging conditions on CT radiation dose. An anthropomorphic chest
phantom was imaged on two CT scanners (scanners A and B) from different vendors, manipulating the
scout imaging conditions in terms of imaging direction, tube voltage and tube current, and assessed
the tube current modulation in subsequent...
Source: Journal of Radiological Protection - February 11, 2020 Category: Physics Authors: Yusuke Inoue and Hiroyasu Itoh Source Type: research
Belarusian in utero cohort: A new opportunity to evaluate the health effects of prenatal and
early-life exposure to ionising radiation
In April 1986, the Chernobyl nuclear accident resulted in wide-scale contamination of Belarus with
significantly elevated levels of radioiodine isotopes, mainly iodine-131 ( 131 I), and long-lived
radiocaesium isotopes, mainly caesium-137 ( 137 Cs). Various groups of the population were affected
by exposure to ionising radiation, including pregnant women and their foetuses. This paper describes
the methods and results related to the establishment of a cohort of 2965 Belarusian people exposed
in utero due to Chernobyl fallout. The cohort consists of individuals whose mothers resided in the
most radioactively contamina...
Source: Journal of Radiological Protection - February 11, 2020 Category: Physics Authors: Vasilina Yauseyenka, Vladimir Drozdovitch, Evgenia Ostroumova, Olga Polyanskaya, Victor Minenko, Alina Brenner, Maureen Hatch, Mark P Little, Elizabeth K Cahoon, Tatiana Kukhta, Liliya Starastsenka, Rimma Grakovitch, Andrey Cheshik, Ilya Veyalkin, Alexand Source Type: research
An improved method of nasal swab analysis for assessing alpha internal radioactive contaminants
In this study, to improve the quality of
nasal swab measurements, a specialised double-detector alpha counter was designed. Various
parameters including swab materials, sample pre-preparation, angle-dependence and vacuum dependence
were investigated to optimise the reliability and convenience of the nasal swab method. An improved
procedure of direct nasal swab measurement was eventually established, which could be used to obtain
early data for initial dose assessment during the first response of nuclear and radiological
emergencies. (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - February 11, 2020 Category: Physics Authors: Ji Yunlong, Li Dawei, Qu Decheng and Ning Jing Source Type: research
A Monte Carlo model for organ dose reconstruction of patients in pencil beam scanning (PBS) proton
therapy for epidemiologic studies of late effects
Significant efforts such as the Pediatric Proton/Photon Consortium Registry (PPCR) involving
multiple proton therapy centers have been made to conduct collaborative studies evaluating outcomes
following proton therapy. As a groundwork dosimetry effort for the late effect investigation, we
developed a Monte Carlo (MC) model of proton pencil beam scanning (PBS) to estimate organ/tissue
doses of pediatric patients at the Maryland Proton Treatment Center (MPTC), one of the proton
centers involved in the PPCR. The MC beam modeling was performed using the TOPAS (TOol for PArticle
Simulation) MC code and commissioned to mat...
Source: Journal of Radiological Protection - January 27, 2020 Category: Physics Authors: Yeon Soo Yeom, Gleb Kuzmin, Keith Griffin, Matthew Mille, Jerimy Polf, Ulrich Langner, Jae Won Jung, Choonik Lee, Dillon Ellis, Jungwook Shin and Choonsik Lee Source Type: research
A new mobile self-dispensing and administering system for 18 F-FDG: evaluation of operator dose
reduction
Purpose: Recently new mobile systems for dispensing positron emitters have been produced, designed
to guarantee dispensing cycles in an aseptic environment. The aim of the present work was to assess
the advantage of one of these systems in radiation protection of operators in clinical settings.
Methods: Recently, in our centre the new self-dispensing system named KARL 100 by Tema Sinergie was
adopted for 18 F-FDG radiopharmaceuticals. The system is associated with an automatic Rad-inject
infuser. The system that was previously used was a fixed isolator NMC DSI (Tema Sinergie), equipped
with a μ DDS-An activity fract...
Source: Journal of Radiological Protection - January 27, 2020 Category: Physics Authors: Alice Ferretti, Arianna Massaro, Stella Gusella, Lucia Rampin, Anna Margherita Maffione, Sotirios Chondrogiannis, Maria Cristina Marzola, Gaia Grassetto, Roberto Delgado-Bolton, Domenico Rubello and Marcello Gava Source Type: research
A study of the underestimation of eye lens dose with current eye dosemeters for interventional
clinicians wearing lead glasses
In this study, we evaluated the impact of the position of H p (3) dosemeters on
the estimated eye lens dose when lead glasses are used in interventional settings. Using the Monte
Carlo method (MCNPX), an interventional cardiology setup was simulated for two models of lead
glasses, five beam projections and two patient access routes. H p (3) dosemeters were placed at
several positions on the operator and the obtained dose was compared to the dose to the sensitive
part of the eye lens ( H lens ). Furthermore, to reproduce an experimental setup, a reference
dosemeter, H p (Source: Journal of Radiological Protection)
Source: Journal of Radiological Protection - January 27, 2020 Category: Physics Authors: Edilaine Honorio da Silva, Colin J Martin, Filip Vanhavere and Nico Buls Source Type: research
Validation of a radiative transfer model with measurements of UV radiation inside a commercial
aircraft
A radiative transfer model for the determination of UV radiation on arbitrarily oriented surfaces is
validated by spectral measurements taken directly on the inner surface of a cockpit window of an
Airbus A321-231 during a flight from Frankfurt, Germany to M álaga, Spain on 23 August 2018. The
simulations consider the UV spectral range from 290 to 400 nm and take into account both the
measured spectral transmittance of a cockpit window as well as its construction-related orientation.
Comparisons are performed for selected route segments with largely cloud-free conditions. The
cruising level of the Airbus on these se...
Source: Journal of Radiological Protection - January 14, 2020 Category: Physics Authors: Ralf Meerk ötter and Kai Schennetten Source Type: research
Temporal evolution of activation products in a zircaloy –4 guide tube and the estimation of its
external gamma dose rate for decommissioning activities
The dismantling of structural objects during the decommissioning of nuclear facilities needs
radioactive source characterisation for the planning of decommissioning strategies in compliance
with the ALARA (as low as reasonably achievable) principle. The sources may arise from neutron
activation of the structural components in the reactor core as well as contamination due to the
radioactive release from the fuel occurred during normal operation or unplanned events in a nuclear
power plant (NPP). In a pressurised heavy water reactor (PHWR), various in-core components are
predominantly made of either zircaloy –2 or 4....
Source: Journal of Radiological Protection - January 14, 2020 Category: Physics Authors: Riya Dey, Tanmay Sarkar, Chitra Subramanian, Srinivasan Anand, Kapil Deo Singh and Mukund Shrinivas Kulkarni Source Type: research
