Ion-resonance instability in a modified betatron accelerator

Ion Resonance Instability in a Modified Betatron Accelerator

Ion-hose Instability in a Long-pulse Accelerator

The ion-hose instability is a transverse electrostatic instability which occurs on electron beams in the presence of a low-density ion channel. In the DARHT-2 accelerator, the 2 kA, 2 microsecond beam pulse produces an ion channel through impact ionization of the residual background gas ( 1:5 10 7 torr average). A calculation of the linear growth by R. J. Briggs indicated that the instability c...

Synchrotron-betatron parametric instability in free-electron lasers.

Experimental Study of an Ion Cyclotron Resonance Accelerator

The Ion Cyclotron Resonance Accelerator (ICRA) uses a novel geometry which combines the radial confinement and azimuthal acceleration of cyclotrons together with the axial drift used in gyrotrons. Use of a common NbTi superconducting solenoid and an rf driven magnetron structure lead to a simple, lightweight, and compact machine that could be designed for portability. An ICRA designed to accele...

A new 14 GHz electron-cyclotron-resonance ion source for the heavy ion accelerator facility ATLAS

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