Results 61 to 70 of about 68,837 (290)

Review of the anatomical basis for predicting plutonium alpha particle radiation induced osteogenic cancers

open access: yesThe Anatomical Record, EarlyView.
Abstract Plutonium was discovered and first synthesized in the early 1940's. Several isotopes of plutonium are used in nuclear technologies, 238Pu for heat generation and 239Pu for energy production and weapons. Both isotopes emit alpha particles, which pose a significant radiation hazard when incorporated into the body.
Scott C. Miller
wiley   +1 more source

Planar and tomographic imaging dosimetry comparing to develop a new radiopharmaceutical for melanoma therapy

open access: yesBrazilian Journal of Radiation Sciences, 2020
This work aims to compare SPECT (Single Photon Emission Tomography Computed) and planar modalities as the most efficient methodology to perform dosimetry by molecular imaging.
Sarah Soriano   +3 more
doaj   +1 more source

Bringing Small Devices, Giving Design Advice: Introducing Radiation Protection Practices in Greece via the IAEA's Visiting Professor Program**

open access: yesBerichte zur Wissenschaftsgeschichte, EarlyView.
Abstract This paper examines how an International Atomic Energy Agency (IAEA) expert mission for technical assistance in the late 1950s to Greece was effectively transformed into a mission to achieve the IAEA′s central objective: to consolidate its position as the leading global authority on radiation protection. The study focuses on the work of Alfred
Loukas Freris
wiley   +1 more source

Natural radionuclide and 137Cs activity concentration in soils of the Brazilian State of Sergipe and their correlation with environmental characteristics

open access: yesBrazilian Journal of Radiation Sciences
Radionuclides occur naturally in the environment, exposing living organisms to ionizing radiation. In addition, human activities have introduced artificial radionuclides such as 137Cs, among others, into the environment.
Luiz Cavalcante Ferreira   +6 more
doaj   +1 more source

Lead‐free transparent nanocomposite for efficient clinical X‐ray shielding

open access: yesBMEMat, EarlyView.
A lead‐free nanocomposite of LaF3 nanoparticles exhibits a high optical transparency of 86% with a heavy loading of up to 70 wt%, which enables the design of radiation shielding goggles for interventional surgeons in real clinical scenarios. Abstract The increasing use of X‐ray imaging in the medical field has generated a growing need for efficient ...
Xiangzhou Zhang   +8 more
wiley   +1 more source

Radiological protection and certification for medical professionals in Brazil

open access: yesBrazilian Journal of Radiation Sciences, 2018
Radiation protection is supported by three pillars: justification, optimization and dose limitation. The safe use of ionizing radiation is governed by the limits of public and occupational exposure, justification and optimization for medical exposures ...
CAMILLE Pinho Vieira DE CASTRO DA LUZ   +2 more
doaj   +1 more source

- In Vivo Dosimetry in Brachytherapy [PDF]

open access: yes, 2012
As discussed in the following sections, in vivo dosimetry has been utilized for dierent purposes during the radiation therapy of cancer patients. Initially, this technique was used to verify dose to the organs adjacent to the implanted volume. However, verications of the accuracy of the treatment delivery for complex treatment techniques have been ...
Cygler, Joanna E   +3 more
openaire   +2 more sources

Achieving Multimodal and Multicolor Luminescence in LaAlO3:Pr3+, Gd3+ via Trap Engineering and Energy Transfer

open access: yesChemPhysChem, EarlyView.
A single LaAlO3:Pr3+, Gd3+ phosphor exhibits penta‐modal luminescence (down‐conversion luminescence, up‐conversion luminescence, persistent luminescence, optically stimulated luminescence, and thermally stimulated luminescence) across ultraviolet–visible–near‐infrared regions, enabled by distinct traps (0.69–1.15 eV) and defect engineering, with ...
Nimai Pathak   +4 more
wiley   +1 more source

Overview of Brazilian industrial radiography accidents with cutaneous radiation syndrome

open access: yesBrazilian Journal of Radiation Sciences, 2018
Many of industrial radiological accidents are related to industrial gamma radiography, which makes this practice the highest potential risk for human health.
Camila Moreira Araújo de Lima   +1 more
doaj   +1 more source

Microtubular structure impairment after GSM-modulated RF radiation exposure

open access: yesArhiv za Higijenu Rada i Toksikologiju, 2020
The objective of the study was to investigate whether low-level 915 MHz GSM-modulated radiofrequency (RF) radiation impairs microtubular structure and affects normal cell growth.
Čermak Ana Marija Marjanović   +2 more
doaj   +1 more source

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