Public Note / MISC / POSI ILC-NOTE-2007-011

ILC Target Prototype Simulation by Means of FEM

Antipov, S (Argonne National Lab) ; Liu, W (Argonne National Lab) ; Gai, W (Argonne National Lab)

Abstract: For an ILC undulator-based positron source target configuration, a strong optical matching device (OMD) field is needed inside the target to increase the positron yield (by more than 40%). It is also required that the positron target is constantly rotated to reduce thermal and radiation damage. Eddy currents, produced by an OMD field in turn interact with the magnetic field and produce a drag (stopping) force. This force not only produces heat in the disk, but also creates a dipole deflecting field, which affects the beam. Therefore it is important to simulate such a system in detail to design the motor and cooling system and also a correction magnet system. In order to guide the ILC target design, an exact simulation of the spinning disk in a magnetic field is required.

The record appears in these collections:
Accelerator Design & Technology > ILC Beamline Areas > Positron Source
Documentation > Publications & Notes > ILC Notes


 Record created 2007-03-29, last modified 2008-09-22

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