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- M. Kuriki
HU/AdSM, Higashi-Hiroshima, Japan
- T. Kakita
Hiroshima University, Graduate School of Advanced Sciences of Matter, Higashi-Hiroshima, Japan
- S. Kashiwagi
Tohoku University, School of Science, Sendai, Japan
- K. Negishi
Iwate University, Morioka, Iwate, Japan
- T. Okugi, T. Omori, M. Satoh, Y. Seimiya, J. Urakawa, K. Yokoya
KEK, Ibaraki, Japan
- T. Takahashi
Hiroshima University, Graduate School of Science, Higashi-Hiroshima, Japan
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ILC (International Linear Collider) is e+ e− linear collider in the next high energy program promoted by ICFA. In ILC, an intense positron pulse in a multi-bunch format is generated with gamma ray from Undulator radiation. As a technical backup, the electron driven positron source has been studied. By employing a standing wave L-band accelerator for the capture linac, an enough amount of positron can be captured due to the large aperture, even with a limited accelerator gradient. However, the heavy beam loading up to 2 A perturbs the field gradient and profile along the longitudinal position. We present the capture performance of the ILC positron source including the heavy beam loading effect.
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