The Next Generation of Axion Helioscopes: The International Axion Observatory (IAXO)

  • J. K. Vogel
  • , E. Armengaud
  • , F. T. Avignone
  • , M. Betz
  • , P. Brax
  • , P. Brun
  • , G. Cantatore
  • , J. M. Carmona
  • , G. P. Carosi
  • , F. Caspers
  • , S. Caspi
  • , S. A. Cetin
  • , D. Chelouche
  • , F. E. Christensen
  • , A. Dael
  • , T. Dafni
  • , M. Davenport
  • , A. V. Derbin
  • , K. Desch
  • , A. Diago
  • B. Döbrich, I. Dratchnev, A. Dudarev, C. Eleftheriadis, G. Fanourakis, E. Ferrer-Ribas, J. Galán, J. A. García, J. G. Garza, T. Geralis, B. Gimeno, I. Giomataris, S. Gninenko, H. Gómez, D. González-Díaz, E. Guendelman, C. J. Hailey, T. Hiramatsu, D. H.H. Hoffmann, D. Horns, F. J. Iguaz, I. G. Irastorza, J. Isern, K. Imai, A. C. Jakobsen, J. Jaeckel, K. Jakovčić, J. Kaminski, M. Kawasaki, M. Karuza, M. Krčmar, K. Kousouris, C. Krieger, B. Lakić, O. Limousin, A. Lindner, A. Liolios, G. Luzón, S. Matsuki, V. N. Muratova, C. Nones, I. Ortega, T. Papaevangelou, M. J. Pivovaroff, G. Raffelt, J. Redondo, A. Ringwald, S. Russenschuck, J. Ruz, K. Saikawa, I. Savvidis, T. Sekiguchi, Y. K. Semertzidis, I. Shilon, P. Sikivie, H. Silva, H. Ten Kate, A. Tomas, S. Troitsky, T. Vafeiadis, K. Van Bibber, P. Vedrine, J. A. Villar, L. Walckiers, A. Weltman, W. Wester, S. C. Yildiz, K. Zioutas

Research output: Contribution to journalConference articlepeer-review

Abstract

The International Axion Observatory (IAXO) is a proposed 4th-generation axion helioscope with the primary physics research goal to search for solar axions via their Primakoff conversion into photons of 1 - 10 keV energies in a strong magnetic field. IAXO will achieve a sensitivity to the axion-photon coupling g down to a few ×10-12 GeV-1 for a wide range of axion masses up to ∼ 0.25 eV. This is an improvement over the currently best (3rd generation) axion helioscope, the CERN Axion Solar Telescope (CAST), of about 5 orders of magnitude in signal strength, corresponding to a factor ∼ 20 in the axion photon coupling. IAXO's sensitivity relies on the construction of a large superconducting 8-coil toroidal magnet of 20 m length optimized for axion research. Each of the eight 60 cm diameter magnet bores is equipped with x-ray optics focusing the signal photons into ∼ 0.2 cm2 spots that are imaged by very low background x-ray detectors. The magnet will be built into a structure with elevation and azimuth drives that will allow solar tracking for 12 hours each day. This contribution is a summary of our papers [1-3] and we refer to these for further details.

Original languageEnglish
Pages (from-to)193-200
Number of pages8
JournalPhysics Procedia
Volume61
DOIs
StatePublished - 2015
Event13th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2013 - , United States
Duration: 8 Sep 201313 Sep 2013

Bibliographical note

Publisher Copyright:
© 2015 The Authors.

Keywords

  • ALP
  • IAXO
  • astroparticle physics
  • axion
  • dark matter
  • helioscopes
  • strong CP problem

ASJC Scopus subject areas

  • General Physics and Astronomy

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