THP72

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URL	https://doi.org/10.18429/JACoW-IBIC2024-THP72
Title	A preliminary design of a Compton polarimeter at BEPCⅡ
Authors	Z. Duan, C. Zhou, C. Yu, D. Zhu, D. Ji, G. Lei, J. Wang, X. Sun, Y. Li Institute of High Energy Physics A. Martens, F. Zomer Université Paris-Saclay, CNRS/IN2P3, IJCLab C. Sandoval Universidad Antonio Nariño F. Castellanos Universidad Nacional de Colombia G. Tang, Q. Li, Q. Han, Y. Zhang, Z. Liang Chinese Academy of Sciences M. Su University of Chinese Academy of Sciences W. Zhang Insititute of High Energy Physics
Abstract	BEPCⅡ is a double ring e+ e- collider running in the tau-charm energy region. We proposal reusing the beamline of a dismantled wiggler magnet to implement a Compton polarimeter detecting scattered γ photons, to measure the self-polarization of the electron beam at BEPCⅡ. As a testbed for future colliders like the CEPC, this would enable resonant depolarization，and thus provide precision beam energy calibration for BEPCⅡ. In this paper, the preliminary design of this Compton polarimeter is presented, as well as the tentative plan for implementation and commissioning in the coming years are shown.
Paper	download: THP72.pdf
Cite	BibTeX, LaTeX, Text/Word, RIS, EndNote
Conference	Proc. 13th International Beam Instrumentation Conference
Series
Location	Beijing
Date	09-13 Sep 2024
Publisher	JACoW Publishing, Geneva, Switzerland
Editorial Board	Jianshe Cao (IHEP), Junhui Yue (IHEP), Lin Bian (IHEP), Ivan Andrian (Elettra-Sincrotrone Trieste S.C.p.A.), Volker RW Schaa (GSI), Zhichu Chen (SARI)
Online ISBN	978-3-95450-249-3
Online ISSN	2673-5350
Received	05 September 2024
Revised	10 September 2024
Accepted	11 September 2024
Issued	11 December 2024
DOI	10.18429/JACoW-IBIC2024-THP72
Pages	645-648
Copyright	Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.