Bengt Anderberg

Magnet design for a low-emittance storage ring

The magnet design of the MAX IV 3 GeV storage ring replaces the conventional support girder + discrete magnets scheme of previous third-generation light sources with a compact integrated design having several consecutive magnet elements precision-machined out of a common solid iron block.

MAX-IV lattice, dynamic properties and magnet system

At MAX-LAB the next synchrotron light source MAX-IV is currently studied (Proceedings of the seventh European Particle Accelerator Conference, EPAC 02, Paris, France, 2002). In this paper, we present a possible lattice with horizontal emittance of 1.2 nm rad at an energy of 3 GeV. The possibilities to realise the main magnetic system with high gradient integrated magnets are studied with 2D and 3D magnetic field programs. The dynamic properties for the lattice are also studied and some higher order corrections are discussed.

The design of a 3 GHz thermionic RF-gun and energy filter for MAX-lab

A new pre-injector has been designed for the MAX-laboratory. It consists of an RF-gun and a magnetic energy filter. The newly designed RF-gun geometry will be operated at 3 GHz in the thermionic mode using a BaO cathode. The pre-injector will provide a 2.3 MeV electron beam in 3 ps micro pulses to a new injector system currently under construction

Septum magnet design

New magnetic DC septa are designed for the upgraded Max I and the new Max III storage rings, respectively. The new septum is made magnetically symmetric with a magnetic flux filter in the septum nose. The residual stray fields in the ring tube become almost linear and the usually strong stray fields close to the septum sheet are eliminated. If necessary a final correction of the linear part could be done in the injection straight.

Status of the MAX-III storage ring

The MAX-II storage ring is a third generation synchrotron light source recently commissioned in Lund, Sweden. A description of the ring is presented along with an evaluation of the performance during commissioning. The status and most recent results of the early stages of operation are also presented.