Journal Article

PUBDB-2015-02514

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png A Quartz Cherenkov Detector for Compton-Polarimetry at Future $e^+e^-$ Colliders

List, J. (Corresponding author)DESY* ; Vauth, A.DESY* ; Vormwald, B.>Extern*

2015
IET Stevenage [u.a]

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Please use a persistent id in citations: doi:10.1088/1748-0221/10/05/P05014

Report No.: DESY-15-028; arXiv:1502.06955

Abstract: Precision polarimetry is essential for future e(+)e(−) colliders and requires Compton polarimeters designed for negligible statistical uncertainties. In this paper, we discuss the design and construction of a quartz Cherenkov detector for such Compton polarimeters. The detector concept has been developed with regard to the main systematic uncertainties of the polarisation measurements, namely the linearity of the detector response and detector alignment. Simulation studies presented here imply that the light yield reachable by using quartz as Cherenkov medium allows to resolve in the Cherenkov photon spectra individual peaks corresponding to different numbers of Compton electrons. The benefits of the application of a detector with such single-peak resolution to the polarisation measurement are shown for the example of the upstream polarimeters foreseen at the International Linear Collider. Results of a first testbeam campaign with a four-channel prototype confirming simulation predictions for single electrons are presented.

Keyword(s): beam: polarization ; Cherenkov counter: quarz ; Cherenkov counter: design ; Cherenkov counter ; alignment ; photon: spectrum ; ILC Coll ; Compton scattering ; electron positron: colliding beams ; photon: yield ; numerical calculations

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Contributing Institute(s):

1. Experimente an Lepton Collidern (FLC)

Research Program(s):

1. 632 - Detector technology and systems (POF3-632) (POF3-632)

Experiment(s):

1. Facility (machine) ILC

Appears in the scientific report 2015

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Database coverage:
; Current Contents - Engineering, Computing and Technology ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Internal Report List, J. (Corresponding author)DESY* ; Vauth, A.Extern* ; Vormwald, B.Extern*
A Quartz Cherenkov Detector for Compton-Polarimetry at Future e+e- Colliders
(2015) [10.3204/PUBDB-2015-02074]2015     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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