ILC Workshop on Potential Experiments (ILCX2021)

Update on the Development of the Active Plasma Lens as an Alternative Optical Matching Device

27 Oct 2021, 23:00

30m

Room #2 (Zoom Meeting ID: 823 6921 2312)

Oral presentation using Zoom Session R: Machine - Sources R-1: Machine - Sources

Speakers

Gudrid Moortgat-Pick Manuel FormelaMr Klaus Floettmann (DESY)Mr Niclas Hamann (Universität Hamburg)

Description

The optical matching device (OMD) is responsible for matching the positron beam, produced in the target, according to the damping ring acceptance. This makes the OMD a crucial component for the number of positrons available in the collision experiments. The active plasma lens (APL) is a current-carrying plasma with the potential of being an innovative alternative for traditional OMD concepts as, for instance, the quarter wave transformer (QWT). This is due to its azimuthal magnetic field, which leads notably to focusing in both planes and due to minimal eddy currents inside the rotating target. Furthermore the plasma is transparent for incoming beams. Simulations with the ASTRA code suggest an increase in number of captured positrons by up to $~40\%$ relative to the ILC's current QWT design. Recently a German funding grant has been approved for further theoretical and experimental research, including setting-up a prototype experiment.

Presentation materials

2021-MFormela-Update_-ILCX.odp