Abstract Strontium 90 (Sr-90) has been commonly used in the radiation treatment of pterygia eye. A radioactive plaque is placed an applicator onto surface eyeball for a specific length time to achieve desired dose. Dose usually calculated using source activity and decay, as well distance from it However, this assumes flat eye surface. This investigation 3D printing produce anthropomorphic phant...

Cementitious materials are considered to be a waste form for the ultimate disposal of radioactive materials in geological repositories. We investigated by means of atomistic simulations the encapsulation of strontium-90, an important radionuclide, in calcium–silicate–hydrate (C–S–H) and its crystalline analog, the 9 Å-tobermorite. C–S–H is the major binding phase of cement. Strontium was shown ...

Summary of cyclotron production methods of Pu (45,2 d), Y (106,65 d) and Sr (64,84 d) tracers via nuclear reactions with protons and alphas on U, Sr and Rb targets in wide energy range is given. Chemical methods of separation and purification of the tracers from the irradiated uranium, strontium and rubidium targets are described. The tracers were used for determination of Pu (239 – 240), Sr-90...

BACKGROUND It is unclear how to predict which patients will respond to Y-90 radiosynoviorthesis. The aim of this study is to correlate clinical outcomes following Y-90 radiosynoviorthesis with bremsstrahlung and Y-90 PET/CT imaging findings. METHODS Fifty-one joints underwent bremsstrahlung planar and Y-90 PET/CT imaging following Y-90 radiosynoviorthesis. The Y-90 distribution pattern on bre...

As cases of the novel coronavirus disease (COVID-19) continue to rise, so are concerns effects this pandemic could have on people living with HIV. In response pandemic, measures been put in place by African governments limit spread virus. We examine impact these ensuring progress towards HIV advocacy '90-90-90' 2020, i.e., 90% all will know their status, diagnosed receive sustained antiretrovir...