31417284cyclotronsPT2026-03-30 20:52:18UF31417285accelerators, circularNDUF31417286accelerators, magnetic resonanceNDUF31417287circular acceleratorsNDUF31417288cyclotronNDUF31417289magnetic resonance acceleratorsNDUF31417290phasotronsNDBT31381286particle acceleratorsPTNT31428178avf cyclotronsPTNT31428200isochronous cyclotronsPT