Abstract: A dense plasma focus (DPF) to produce positron emitters is provided, where a pulsed device has an anode and a cathode arranged in a vacuum chamber, the anode and cathode being subjected to a high voltage. When the vacuum chamber is filled with a reaction gas and a high voltage generated is applied, a plasma sheath is created and a reaction between the electrodes take place to produce plasmoids resulting in an ion beam that interacts with a reactive gas to produce radio-isotopes.

Abstract: A plant and a modular fission reactor including a sealed reaction module. The sealed reaction module includes a core reactor vessel filled with molten salt and fuel and a moderator and reflector positioned inside the vessel housing, the moderator and reflector forming an active region in which fission occurs. The plant may include a power module and a heat exchanger that extracts heat from the reaction module and communicates the extracted heat to the power module. A second heat exchanger may extracts heat from the first heat exchanger and communicates the heat to the power module. The core reactor vessel may comprise at least one spare fuel container coupled to the reactor vessel and/or a chemistry module coupled to the reactor vessel.

Abstract: A dense plasma focus (DPF) to produce positron emitters is provided, where a pulsed device has an anode and a cathode arranged in a vacuum chamber, the anode and cathode being subjected to a high voltage. When the vacuum chamber is filled with a reaction gas and a high voltage generated is applied, a plasma sheath is created and a reaction between the electrodes take place to produce plasmoids resulting in an ion beam that interacts with a reactive gas to produce radio-isotopes.

Abstract: The Cherenkov effect is used to detect neutrons emitted by man-made radioactive materials. Water or other liquid or gas may be used as a detection medium. The water may include a dispersed or dissolved dopant having a high neutron capture cross-section, which renders the dopant able to absorb and react with neutron radiation effectively. When the dopant absorbs, or reacts with, a neutron particle, the result of the reaction may be the generation of beta particles which can be detected via the accompanying emission of light, dispersed or dissolved, according to the Cherenkov effect.