Abstract: Since the previously reported successful demonstration of acceleration of electrons to approximately 12 MeV, higher trapped beam current and longer beam lifetime have been obtained. The improved confinement has led to a higher peak energy approximately 18 MeV, and is the result of increasing the strong focusing and toroidal magnetic fields, reducing magnetic field errors, and optimizing the betatron flux condition. Modifications to the electromagnet buswork are in progress to further reduce field errors, and a fast pulsed magnet system to provide dynamic stabilization of the cyclotron resonances is being studied.!
展开▼
