General Electric Company

Martin Pärnaste

Tomas Eriksson

Johan Larsson

Jonas Norling

Andreas Bäcklund

John Melin

Magnus Bondeson

Lars Walenius

Mikael Carlbom

Rickard Ericson

Target assembly includes a target body having a production chamber and a beam passage. The target body includes first and second grid sections that are disposed in the beam passage. Each of the first and second grid sections has front and back sides. The back side of the first grid section and the front side of the second grid section abut each other with an interface therebetween. The back side of the second grid section faces the production chamber. The target assembly also includes a foil positioned between the first and second grid sections. Each of the first and second grid sections has interior walls that define grid channels through the first and second grid sections. The particle beam is configured to pass through the grid channels toward the production chamber. The interior walls of the first and second grid sections engage opposite sides of the foil.

Target assembly and isotope production system having a grid section

Target assembly for an isotope production system. The target assembly includes a target body having a production chamber and a beam cavity that is adjacent to the production chamber. The production chamber is configured to hold a target material. The beam cavity opens to an exterior of the target body and is configured to receive a particle beam that is incident on the production chamber. The target assembly also includes a target sheet positioned to separate the beam cavity and the production chamber. The target sheet has a side that is exposed to the production chamber such that the target sheet is in contact with the target material during isotope production. The target sheet includes graphene.

Isotope production system having a target assembly with a graphene target sheet

Radioisotope production system includes an electrical field system and a magnetic field system that are configured to direct a particle beam of charged particles along a beam path within an acceleration chamber. The magnetic field system is energized by a drive current to generate a magnetic flux into the acceleration chamber for controlling the particle beam. The radioisotope production system also includes a target system configured to hold a target material and receive the particle beam. The radioisotope production system also includes a monitoring system that is configured to: (a) determine an operating parameter of the radioisotope production system as the particle beam is directed toward the target material and (b) change the drive current, thereby changing the magnetic flux, based on the operating parameter.

Radioisotope production system and method for controlling the same

Target assembly for an isotope production system. The target assembly includes a target body having a production chamber and a beam cavity that is adjacent to the production chamber. The production chamber is configured to hold a target material. The beam cavity is configured to receive a particle beam that is incident on the production chamber. The target assembly also includes a target foil positioned to separate the beam cavity and the production chamber. The target foil has a side that is exposed to the production chamber such that the target foil is in contact with the target material during isotope production. The target foil includes a material layer having a nickel-based superalloy composition.

Target assembly and nuclide production system

Production assembly for an isotope production system. The production assembly includes a mounting platform including a receiving stage that faces an exterior of the mounting platform. The mounting platform includes a beam passage that opens to the receiving stage and a stage port that is positioned along the receiving stage. A particle beam is configured to project through the beam passage and through the receiving stage during operation of the isotope production system. The stage port is configured to provide or receive a fluid through the receiving stage during operation of the isotope production system. The production assembly also includes a target assembly having a production chamber configured to hold a target material for isotope production. The target assembly includes a mating side that is configured to removably engage the receiving stage during a mounting operation.

Production assemblies and removable target assemblies for isotope production

Radio-frequency (RF) electrode for a cyclotron. The RF electrode includes a hollowed dee having first and second surfaces that oppose each other and define a gap therebetween. The hollowed dee is configured to be electrically controlled to direct a beam of charged particles through the gap and along an orbit plane of the cyclotron. The orbit plane extends parallel to the first and second surfaces through the gap. The RF electrode also includes a bridge structure that is coupled to and extends away from the hollowed dee. The bridge structure includes a side wall that defines an interior cavity of the bridge structure. The side wall has a particle opening therethrough that coincides with or is proximate to the orbit plane such that the particle opening receives neutral particles from an orbit of the charged particles.

Growing community of inventors

Uppsala, Sweden

Martin Pärnaste