Study on Low–energy Positron Polarimetry
نویسندگان
چکیده
For the design of the International Linear Collider (ILC) a polarised positron source based on a helical undulator system has been proposed. In order to optimise the positron beam, i.e. to ensure high intensity as well as high degree of polarisation, a measurement of the polarisation close to the positron creation point is envisaged. In this contribution methods to determine the positron polarisation at low energies are investigated. These studies are based on simulations with an extended version of GEANT4, which allows the tracking of polarised particles taking into account the spin effects.
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