At the international linear collider, measurement of the beam profile at the interaction point is a key issue to achieve high luminosity. We report a simulation study on a new beam profile monitor, called the pair monitor, which uses the hit distribution of the electron-positron pairs generated at the interaction point. We obtained measurement accuracies of 5.1%, 10.0%, and 4.0% for the horizontal, vertical, and longitudinal beam size, respectively, for 50 bunch crossings.
@article{arxiv.0901.4151,
title = {Study of Beam Profile Measurement at Interaction Point in International Linear Collider},
author = {Kazutoshi Ito and Akiya Miyamoto and Tadashi Nagamine and Toshiaki Tauchi and Hitoshi Yamamoto and Yosuke Takubo and Yutaro Sato},
journal= {arXiv preprint arXiv:0901.4151},
year = {2015}
}