Journal Article

PUBDB-2021-00731

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Straightening of superconducting HERA dipoles for the any-light-particle-search experiment ALPS II

Albrecht, C.DESY* ; Barbanotti, S.DESY* ; Hintz, H.DESY* ; Jensch, K.DESY* ; Klos, R.DESY* ; Maschmann, W.DESY* ; Sawlanski, O.DESY* ; Stolper, M.Extern*DESY* ; Trines, D. (Corresponding author)Extern*DESY*

2021
Springer Open Heidelberg [u.a.]

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Please use a persistent id in citations: doi:10.1140/epjti/s40485-020-00060-5  doi:10.3204/PUBDB-2021-00731

Report No.: DESY-20-070; arXiv:2004.13441

Abstract: At DESY the ALPS II experiment is being installed in the HERA tunnel to search for axion like particles. A laser beam will be injected into the magnetic field of a string of superconducting (s.c.) dipole magnets, available from the HERA proton storage ring, to produce axion like particles. After passing a light tight wall, the ALPs can reconvert into photons in a second string of HERA s.c. dipoles. The sensitivity of the experiment will be increased by two mode-matched optical cavities before and behind the wall. The dipoles for the HERA storage ring are curved, suited for stored proton beam. However, the curvature of the magnets limits the aperture and hence the performance of theoptical resonators beyond a certain length. As the sensitivity of the search scales with the length of the magnetic field, the aperture for the optical resonators inside the HERA dipoles was increased by straightening the curved magnet yoke. The procedure of straightening the s.c. HERA dipoles is described in this report.

Keyword(s): cavity: optical ; beam: width ; DESY HERA Stor ; bending magnet ; sensitivity ; curvature ; mechanical engineering ; Axion-like particles ; Superconducting HERA dipoles ; Straightening of HERA dipoles ; Horizontal apertures ; Quench currents

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Contributing Institute(s):

1. Any Light Particle Search (ALPS)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)

Experiment(s):

1. Any Light Particle Search

Appears in the scientific report 2021

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint/Report Albrecht, C.DESY* ; Barbanotti, S. ; Hintz, H.DESY* ; Jensch, K. ; Klos, R.DESY* ; Maschmann, W.DESY* ; Sawlanski, O.DESY* ; Stolper, M. ; Trines, D. (Corresponding author)Extern*
Straightening of Superconducting HERA Dipoles for the Any-Light-Particle-Search Experiment ALPS II
[10.3204/PUBDB-2020-01801]     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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