Simulating MADMAX in 3D: Requirements for dielectric axion haloscopes

Knirck S. ; Schütte-Engel J. ; Beurthey S. ; Breitmoser D. ; Caldwell A. ; Diaconu C. ; Diehl J. ; Egge J. ; Esposito M. ; Gardikiotis A. ; Garutti E. ; Heyminck S. ; Hubaut F. ; Jochum J. ; Karst P. ; Kramer M. ; Krieger C. ; Labat D. ; Lee C. ; Li X. ; Lindner A. ; Majorovits B. ; Martens S. ; Matysek M. ; Öz E. ; Planat L. ; Pralavorio P. ; Raffelt G. ; Ranadive A. ; Redondo J. (Universidad de Zaragoza) ; Reimann O. ; Ringwald A. ; Roch N. ; Schaffran J. ; Schmidt A. ; Shtembari L. ; Steffen F. ; Strandhagen C. ; Strom D. ; Usherov I. ; Wieching G.

Resumen: We present 3D calculations for dielectric haloscopes such as the currently envisioned MADMAX experiment. For ideal systems with perfectly flat, parallel and isotropic dielectric disks of finite diameter, we find that a geometrical form factor reduces the emitted power by up to 30 % compared to earlier 1D calculations. We derive the emitted beam shape, which is important for antenna design. We show that realistic dark matter axion velocities of 10-3 c and inhomogeneities of the external magnetic field at the scale of 10 % have negligible impact on the sensitivity of MADMAX. We investigate design requirements for which the emitted power changes by less than 20 % for a benchmark boost factor with a bandwidth of 50 MHz at 22 GHz, corresponding to an axion mass of 90 µ eV. We find that the maximum allowed disk tilt is 100 µ m divided by the disk diameter, the required disk planarity is 20 µ m (min-to-max) or better, and the maximum allowed surface roughness is 100 µ m (min-to-max). We show how using tiled dielectric disks glued together from multiple smaller patches can affect the beam shape and antenna coupling. © 2021 The Author(s).

Idioma: Inglés

DOI: 10.1088/1475-7516/2021/10/034

Año: 2021

Publicado en: Journal of Cosmology and Astroparticle Physics 2021, 10 (2021), 034 [25 pp]
ISSN: 1475-7516

Factor impacto JCR: 7.28 (2021)

Categ. JCR: PHYSICS, PARTICLES & FIELDS rank: 5 / 29 = 0.172 (2021) - Q1 - T1
Categ. JCR: ASTRONOMY & ASTROPHYSICS rank: 10 / 69 = 0.145 (2021) - Q1 - T1

Factor impacto CITESCORE: 9.7 - Physics and Astronomy (Q1)

Factor impacto SCIMAGO: 0.862 - Astronomy and Astrophysics (Q2)

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Física Teórica (Dpto. Física Teórica)