Göttingen 2012 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 79: Beschleunigerphysik 1
T 79.8: Vortrag
Montag, 27. Februar 2012, 18:30–18:45, VG 1.103
Dynamic Effects of Energetic Beam on Solid Target Material for Positron Production — •Olufemi S. Adeyemi1, Valentyn Kovalenko1, Andriy Ushakov1, Larisa I. Malyshev1, Gudrid A. Moortgat-Pick1,2, Anthony F. Hartin2, Sabine Riemann3, and Friedrich Staufenbiel3 — 1University of Hamburg, Hamburg — 2Deutsches Elektronen-Synchrotron, Hamburg — 3Deutsches Elektronen-Synchrotron, Zeuthen
One of the big challenges for any future linear colider projects is to generate enough positrons to provide the required high luminosity. The International Linear Collider (ILC) foresees to generate polarized positrons via undulator radiation where the produced photon beam hits a solid Titanium alloy target. The bombardment of such a high-intense photon beam on titanium alloy deposits a huge amount of energy unto a very small spot on the target. Instantaneously this process changes the dynamical behaviour and the physical characteristic of the target material. This work presents a preliminary investigation of the dynamical behaviour of different solid target materials under such intense beams. In particular changes in the temperature and the induced stress are evaluated and discussed.