Research Article | Volume 4, Issue 1 DOI: 10.35840/2631-5017/2512Production of Low Activity Rhenium by Transmuting Tungsten Metal in Fast Reactors with ModeratorTsugio Yokoyama and Masaki OzawaAbstractThe feasibility of rhenium (Re) production by irradiating tungsten (W) metal in a medium size fast reactor was evaluated by using a Monte Carlo code. The irradiation of W with hydride zirconium moderator in a fast reactor blanket region can produce about 50 kilograms of Re per every 3 years, which corresponds 1% of Japanese domestic annual production. The specific activity of Re recovered shows below the exemption level, and furthermore, it is decreased to the level below the natural Re specific activity when deuteride zirconium moderator is used. |
Research Article | Volume 4, Issue 1 DOI: 10.35840/2631-5017/2511Coincidence Summing Correction for Cylinder and Marinelli Beaker Sources by Monte Carlo SimulationWaseem khan, Chaohui He and Yu CaoAbstractCoincidence summing effects arises when two or more γ-rays are emitted in a cascade from an excited nucleus and are detected within the resolving time of the detector. Without correction of such effects, the activity of radionuclides cannot be accurately determined. For the correction of summing effects, a new simulation method in GEANT4 was established to simulate the coincidence summing correction factors |
