Academic/Research Magnets

Custom Permanent magnet quadrupoles for particle beam accelerator applications:

• Permanent Magnet Quadrupoles for KLOE, FINUDA and SIDDHARTA experiments for Frascati National Laboratory – DAFNE

• 200 Drift Tube Linac Permanent Magnet Quadrupoles for the Spallation Neutron Source (SNS) under contract with Los Alamos National Laboratory.

• 200+ Drift Tube Linac Permanent Magnet Quadrupoles for a commercial application under contract with AccSys Technology Inc.

• 172 Drift Tube Linac Permanent Magnet Quadrupoles for the Superconducting Super Collider (SSC) under contract with AccSys Technology Inc.

• Numerous small quantity, one of a kind, Permanent Magnet quadrupoles for LANL, Frascati National Laboratory and others.

• The following work done as Field Effects, Inc in the 1980's. This work was in support of President Reagan's Strategic Defense Initiative (SDI) Neutral Particle Beam Integrated Experiment (NPBIE).

• 100+ drift tube quadrupoles for the Continuous Wave Deuterium Demonstrator (CWDD) for Grumman Aerospace Corporation.

• 100+ drift tube quadrupoles for the Ground Test Accelerator (GTA) under contract with Los Alamos National Laboratory.

Aster has custom designed and built this system to measure the integrated strength and the relative harmonic content of beam line magnets. Aster developed a range of coils to accommodate quadrupoles and dipoles with bore diameters from Ø7mm to Ø140mm. Accuracy is dependent on magnet bore and strength. Sample measurement data for an SNS DTL quadrupole follows.

Aster has developed software to calculate the ‘tuning’ adjustments required to adjust the integrated field strength and/or reduce the integrated harmonic content of Halbach ring magnets based on measured data. The adjustments can be displacements of the magnet pieces and/or the addition/subtraction of small ‘tuning’ pieces.