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arXiv · 1202.5987

Heat Load and Stress Studies for an Design of the Photon Collimator for the ILC Positron Source

F. Staufenbiel·O. S. Adeyemi·V. Kovalenko·G. Moortgat-Pick·L. Malysheva·S. Riemann·A. Ushakov
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Abstract

The ILC baseline design for the positron source is based on radiation from a helical undulator to produce positrons in a thin target. Since the photon beam created in the helical undulator is circularly polarized, the generated positron beam is longitudinally polarized. Using a photon collimator upstream the positron target the positron polarization can be enhanced. However, the photon beam intensity yields a huge thermal load in the collimator material. In this paper the thermal load and heat dissipation in the photon collimator is discussed and design solutions are suggested.

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F. Staufenbiel, O. S. Adeyemi, V. Kovalenko, G. Moortgat-Pick, L. Malysheva, S. Riemann, A. Ushakov. 2012-02-27. Heat Load and Stress Studies for an Design of the Photon Collimator for the ILC Positron Source. https://doi.org/10.1142/9789814401043_0007

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