Journal of Radiological Protection
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Papers 2,329
1 page of 233 pages (2,329 results)
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Generally, intentional exposure of pregnant women is avoided as far as possible in both medical and occupational situations. This paper aims to summarise available information on sources of radiation exposure of the embryo/fetus primarily in medical settings. Accidental and unintended exposure is also considered. Knowledge on the effects of radiation exposure on the developing embro/fetus remains incomplete-drawn largely from animal studies and two human cohorts but a summary is provided in rela...
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#1Erika Nakajima (Ibaraki Prefectural University of Health Sciences)
Last. Hitoshi Sato (Ibaraki Prefectural University of Health Sciences)H-Index: 10
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Daily quality control (QC) of mammography equipment is important for providing optimal images and determining appropriate doses. To popularize dosimeters, the Measurement Division, the Japanese Society of Radiological Technology hold a seminar on making simple dosimeters. At this seminar, a hand-made dosimeter for mammography (HD-M) can be made at low cost. However, HD-Ms employ semiconductors, and their energy responses are subject to significant variations. This investigation involved the dete...
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#2L. León Vintró (UCD: University College Dublin)H-Index: 16
#4Julie LuceyH-Index: 9
18F has been the most widely used radionuclide in positron emission tomography (PET) facilities over the last few decades. However, increased interest in novel PET tracers, theranostics and immuno-PET has led to significant growth in clinically used positron-emitting radionuclides. The decay schemes of each of these radioisotopes are markedly different from18F, with different endpoint energies for the emitted positrons and, in some cases, additional high energy gamma radiation. This has implicat...
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#1Jonathan Eakins (PHE: Public Health England)H-Index: 7
#2Babak Afrough (PHE: Public Health England)H-Index: 12
Last. Roger Hewson (PHE: Public Health England)H-Index: 42
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The Monte Carlo radiation transport code MCNP6 has been used to model dosimetry for biological pathogen samples placed within a MultiRad 225 irradiation chamber, in order to inform virus deactivation protocols. Full characterisations of the photon spectra generated by the chamber's x-ray tube were achieved for both 190 and 220 kV potentials, with and without aluminium and copper beam filters of different thicknesses. Dose rate maps to air and water within the chamber were then derived, along wit...
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#1Thomas J. MacVittie (UMB: University of Maryland, Baltimore)H-Index: 56
#2Ann M. Farese (UMB: University of Maryland, Baltimore)H-Index: 23
Recent advances in medical countermeasures has been dependent on the Food and Drug Administration Animal Rule and the guidance document provided for industry on product development under the animal rule. The criteria outlined therein establish the path for approval under the animal rule. The guidance document, along with the funding and requirements from the federal agencies provided the basic considerations for animal model development in assessing radiation effects and efficacy against the pot...
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After nuclear accidents, people can be contaminated internally via ingestion, inhalation and via intact skin or wounds. The assessment of absorbed, committed doses after internal exposure is based on activity measurement by in vivo or in vitro bioassay. Estimation of dose following internal contamination is dependent on understanding the nature and form of the radionuclide. Direct counting methods that directly measure γ-rays coming from within the body or bioassay methods that measure the amoun...
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#8Malgorzata K Sneve (Radiation and Nuclear Safety Authority)H-Index: 2
The safe management and disposal of radioactive wastes arising from the nuclear legacy and newly generated RW, are key problems. Their solution will have important implications for nuclear energy development, introduction of other radiation technologies, and their public perception. In the framework of the cooperation between the Committee of Atomic and Energy Supervision and Control (CAESC) of the Ministry of Energy of the Republic of Kazakhstan and the Norwegian Radiation and Nuclear Safety Au...
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#1Sarah TaiH-Index: 1
#2Samantha Peiling Yang (NUS: National University of Singapore)H-Index: 7
Last. Kelvin S. H. Loke (SGH: Singapore General Hospital)H-Index: 8
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: Background With increasing use of rhTSH stimulation protocol in I-131 treatment of thyroidectomized DTC, there is increasing concern regarding radiation safety during collection and processing of radioactive blood samples. Our study aims to quantify this radiation exposure in the context of current radiation guidelines to provide a practical safety framework. Materials and Methods We analysed 45 patients prospectively referred to a tertiary center in Singapore, who had histologically proven DT...
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#1William S. Santos (UFU: Federal University of Uberlandia)H-Index: 7
#2Lucio P. Neves (UFU: Federal University of Uberlandia)H-Index: 10
Last. Ana P. PeriniH-Index: 7
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Considering the higher radiosensitivity of children in comparison to adults, studies related to children's exposure to ionizing radiation have been long considered of relevance. For this study, the MCNPX2.7.0 Monte Carlo code and four pediatric voxel computational anthropomorphic phantoms, of both genders and aged 5 and 10 years, were used to simulate scenarios, where children are exposed to natural radiation emitted by sources in the ground by radionuclides of 40K and of 232Th and 238U radioact...
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#1Alexandra Kyriakidou (Greek Atomic Energy Commission)
#2Jeroen Schlief (Nuclear Research and Consultancy Group)
Last. Robert Kollaard (Nuclear Research and Consultancy Group)H-Index: 1
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Staff handling radiopharmaceuticals in nuclear medicine (NM) may receive significant extremity doses. Over the last decade in particular there has been an increase in NM procedures and new radiopharmaceuticals have been introduced. However, literature provides limited recent data on the exposure of the extremities. In addition, proper assessment of the equivalent dose to the skin can be difficult when applied to the fingertips. In order to gain insight in the actual exposure and to find out how ...
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