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Studies on Shielding and Activation Levels in a Concrete-Iron-Concrete Sandwich Structure Wall in the CMUH Proton Therapy Facility.
Health Phys
January 2025
China Medical University Hospital, No. 2, Yude Road, Taichung, Taiwan.
The shielding performance and activation susceptibility of a sandwich wall in the proton therapy facility of China Medical University Hospital were investigated in an integrated manner using FLUKA Monte Carlo simulations. The 2-m-thick partition wall between two adjoining treatment rooms had a three-layered structure, which comprised a 0.2-m-thick iron layer sandwiched between two layers of 0.
View Article and Find Full Text PDFAnalysis of genetic instability induced by radon exposure in iron mine processing workers in Shandong Province, Northern China.
Front Public Health
December 2024
School of Preventive Medicine, Shandong First Medical University (Institute of Radiation Medicine, Shandong Academy of Medical Sciences), Jinan, Shandong, China.
Background: Radon, a colorless and odorless radioactive gas, poses serious health risks. It is the second leading cause of lung cancer and notably increases lung cancer risk in smokers. Although previous epidemiological studies have mainly examined lung cancer rates in miners, the effects of radon on genomic stability and its molecular mechanisms are not well understood.
View Article and Find Full Text PDFON THE ISSUE OF RADON EXPOSURE IN THE EXISTING RADIATION SITUATION AT WORKPLACES.
Probl Radiac Med Radiobiol
December 2024
State Institution «O.M. Marzіeiev Institute for Public Health of the National Academy of Medical Sciences of Ukraine», 50 Hetman Pavlo Polubotok Str., Kyiv, 02094, Ukraine.
Objective: assessment of probable exposure levels from radon and NORM in workplaces within the context of justi fying radiation protection plans in an existing exposure situation.
Materials And Methods: Materials regarding the assessment of naturally occurring radioactive material (NORM) con tent in tailing from mining and processing industries in Ukraine and assessments of contamination levels of industri al sites of oil and gas enterprises were used for estimating the probable range of effective doses (ED) of workers fromNORM at industrial enterprises. These materials were obtained as a result of research conducted by specialists from theRadiation Protection Laboratory of the State Institution «O.
Magnetic Sentinel Lymph Node Biopsy in Early Breast Cancer Patients: An Individual Patient Data Meta-analysis of Tracer Uptake.
Ann Surg Oncol
December 2024
Magnetic Detection and Imaging Group, Technical Medical Centre, University of Twente, Enschede, The Netherlands.
Background: Superparamagnetic iron oxide nanoparticles (SPIO) are emerging as a viable alternative to technetium and blue dye. Our study was designed to evaluate the correlation between SPIO dose, injection site, and timing with sentinel lymph node (SLN) detection and iron content in retrieved SLNs.
Methods: This study combined individual patient data from three Dutch and five Swedish studies.
Development of a sulfidized zerovalent iron-geopolymer composite for the reductive immobilization of ReO.
J Environ Manage
December 2024
Division of Environmental Science and Engineering (DESE), Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea; Division of Advanced Nuclear Engineering (DANE), Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea. Electronic address:
A geopolymer waste form has become a suitable approach for the immobilization of the volatile technetium (Tc) due to the low curing temperature (<60 °C). However, the low retention and the high mobility of the anionic technetium (TcO) remain challenging due to the charge repulsion stemming from the negative charges of the geopolymer surface and the anionic TcO. Herein, a geopolymer composite containing sulfidized nanoscale zerovalent iron (S-nZVI) was developed to reductively immobilize ReO (used as a non-radioactive surrogate for TcO).
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