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Article
Title	The Next Generation of Axion Helioscopes: The International Axion Observatory (IAXO)
Author(s)	Vogel, J K (LLNL, Livermore) ; Armengaud, E (IRFU, Saclay) ; Avignone, F T (South Carolina U.) ; Betz, M (CERN) ; Brax, P (IRFU, Saclay) ; Brun, P (IRFU, Saclay) ; Cantatore, G (INFN, Trieste ; Trieste U.) ; Carmona, J M (Zaragoza U.) ; Carosi, G P (LLNL, Livermore) ; Caspers, F (CERN) ; Caspi, S (LBL, Berkeley) ; Cetin, S A (Dogus U., Kadikoy) ; Chelouche, D (Haifa U.) ; Christensen, F E (Denmark, Tech. U.) ; Dael, A (IRFU, Saclay) ; Dafni, T (Zaragoza U.) ; Davenport, M (CERN) ; Derbin, A V (PNPI, CSTD) ; Desch, K (Bonn U.) ; Diago, A (Zaragoza U.) ; Döbrich, B (DESY) ; Dratchnev, I (PNPI, CSTD) ; Dudarev, A (CERN) ; Eleftheriadis, C (Aristotle U., Thessaloniki) ; Fanourakis, G (Democritos Nucl. Res. Ctr.) ; Ferrer-Ribas, E (IRFU, Saclay) ; Galán, J (IRFU, Saclay) ; García, J A (Zaragoza U.) ; Garza, J G (Zaragoza U.) ; Geralis, T (Democritos Nucl. Res. Ctr.) ; Gimeno, B (Valencia U.) ; Giomataris, I (IRFU, Saclay) ; Gninenko, S (Moscow, INR) ; Gómez, H (Zaragoza U.) ; González-Díaz, D (Zaragoza U.) ; Guendelman, E (Ben Gurion U. of Negev) ; Hailey, C J (Columbia U.) ; Hiramatsu, T (Kyoto U., Yukawa Inst., Kyoto) ; Hoffmann, D H H (Darmstadt, Tech. U.) ; Horns, D (Hamburg U.) ; Iguaz, F J (Zaragoza U.) ; Irastorza, I G (Zaragoza U.) ; Isern, J (ICE, Bellaterra) ; Imai, K (JAEA, Ibaraki) ; Jakobsen, A C (Denmark, Tech. U.) ; Jaeckel, J (Heidelberg U.) ; Jakovčić, K (Boskovic Inst., Zagreb) ; Kaminski, J (Bonn U.) ; Kawasaki, M (Tokyo U., ICRR) ; Karuza, M (Rijeka U.) ; Krčmar, M (Boskovic Inst., Zagreb) ; Kousouris, K (CERN) ; Krieger, C (Bonn U.) ; Lakić, B (Boskovic Inst., Zagreb) ; Limousin, O (IRFU, Saclay) ; Lindner, A (DESY) ; Liolios, A (Aristotle U., Thessaloniki) ; Luzón, G (Zaragoza U.) ; Matsuki, S (Kyoto U.) ; Muratova, V N (PNPI, CSTD) ; Nones, C (IRFU, Saclay) ; Ortega, I (Zaragoza U.) ; Papaevangelou, T (IRFU, Saclay) ; Pivovaroff, M J (LLNL, Livermore) ; Raffelt, G (Munich, Max Planck Inst.) ; Redondo, J (Munich, Max Planck Inst.) ; Ringwald, A (DESY) ; Russenschuck, S (CERN) ; Ruz, J (LLNL, Livermore) ; Saikawa, K (Tokyo Inst. Tech.) ; Savvidis, I (Aristotle U., Thessaloniki) ; Sekiguchi, T (Tokyo U., ICRR) ; Semertzidis, Y K (Brookhaven) ; Shilon, I (CERN) ; Sikivie, P (Florida U.) ; Silva, H (CERN) ; ten Kate, H (CERN) ; Tomas, A (Zaragoza U.) ; Troitsky, S (Moscow, INR) ; Vafeiadis, T (CERN) ; van Bibber, K (UC, Berkeley) ; Vedrine, P (IRFU, Saclay) ; Villar, J A (Zaragoza U.) ; Walckiers, L (CERN) ; Weltman, A (Cape Town U.) ; Wester, W (Fermilab) ; Yildiz, S C (Dogus U., Kadikoy) ; Zioutas, K (Patras U.)
Publication	2015
Number of pages	8
In:	Phys. Procedia 61 (2015) 193-200
In:	13th International Conference on Topics in Astroparticle and Underground Physics, Asilomar, CA, USA, 8 - 13 Sep 2013, pp.193-200
DOI	10.1016/j.phpro.2014.12.031
Subject category	Particle Physics - Experiment ; Detectors and Experimental Techniques
Abstract	The International Axion Observatory (IAXO) is a proposed 4 th -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 aγ 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.
Copyright/License	publication: © 2015-2024 The Author(s) (License: CC-BY-NC-ND-3.0)

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