Noninvasive 3D Field Mapping of Complex Static Electric Fields.

Many upcoming experiments in antimatter research require low-energy antiproton beams. With a kinetic energy in the order of 100 keV, the standard magnetic components to control and focus the beams become less effective. Therefore, electrostatic components are being developed and installed in transfer lines and storage rings.

Conceptual design of a high-field septum magnet using a superconducting shield and a canted-cosine-theta magnet.

A zero-field cooled superconducting shield was previously proposed to realize a high-field (at least 3 T) septum magnet for the Future Circular Collider proton-proton ring. In this paper, we present the conceptual design of a complete septum magnet prototype including a shield with an optimized shape and a simple and cost-effective superconducting magnet using the canted cosine theta concept. 2D optimization of the coil geometry and a realistic 2D simulation of the fieldmap and field homogeneity are presented taking into account the nonlinear penetration of the magnetic field into the shield.

The ELENA facility.

The CERN Antiproton Decelerator (AD) provides antiproton beams with a kinetic energy of 5.3 MeV to an active user community. The experiments would profit from a lower beam energy, but this extraction energy is the lowest one possible under good conditions with the given circumference of the AD.