skip to main content

DOE PAGESDOE PAGES

Title: The next generation of axion helioscopes: The international axion observatory (IAXO)

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, 2, 3] and we refer to these for further details.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [2] ;  [6] ;  [7] ;  [1] ;  [4] ;  [8] ;  [9] ;  [10] ;  [11] ;  [2] ;  [7] ;  [4] ;  [12] ;  [13] ;  [7] more »;  [14] ;  [12] ;  [15] ;  [16] ;  [17] ;  [2] ;  [2] ;  [7] ;  [7] ;  [17] ;  [18] ;  [2] ;  [19] ;  [7] ;  [7] ;  [20] ;  [21] ;  [22] ;  [23] ;  [24] ;  [7] ;  [7] ;  [25] ;  [26] ;  [11] ;  [26] ;  [27] ;  [13] ;  [28] ;  [29] ;  [27] ;  [4] ;  [13] ;  [27] ;  [30] ;  [14] ;  [16] ;  [7] ;  [31] ;  [12] ;  [30] ;  [7] ;  [2] ;  [1] ;  [32] ;  [32] ;  [14] ;  [4] ;  [1] ;  [33] ;  [16] ;  [28] ;  [34] ;  [4] ;  [35] ;  [4] ;  [4] ;  [36] ;  [19] ;  [4] ;  [37] ;  [2] ;  [7] ;  [4] ;  [38] ;  [39] ;  [9] ;  [40] « less
  1. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
  2. CEA Irfu, Centre de Saclay, Gif-sur-yvette (France)
  3. Univ. of South Carolina, Columbia, SC (United States)
  4. European Organization for Nuclear Research (CERN), Geneve (Switzerland)
  5. eIPHT, Centre d’E´tudes de Saclay (CEA-Saclay), Gif-sur-Yvette (France)
  6. Sezione di Trieste and Univ. di Trieste, Trieste (Italy)
  7. Univ. de Zaragoza, Zaragoza (Spain)
  8. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  9. Dogus Univ., Istanbul (Turkey)
  10. Univ. of Haifa, Haifa (Israel)
  11. Technical Univ. of Denmark, Lyngby (Denmark)
  12. St. Petersburg Nuclear Physics Institute, St. Petersburg (Russia)
  13. Physikalisches Institut der Univ. Bonn, Bonn (Germany)
  14. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  15. European Organization for Nuclear Research (CERN), Geneva (Switzerland)
  16. Aristotle Univ., Thessaloniki (Greece)
  17. National Center for Scientific Research Demokritos, Athens (Greece)
  18. Univ. de Valencia, Valencia (Spain)
  19. Russian Academy of Sciences (RAS), Moscow (Russian Federation)
  20. Ben Gurion Univ. Beer Sheva (Israel)
  21. Columbia Univ., New York, NY (United States)
  22. Kyoto Univ. (Japan)
  23. Technische Univ. Darmstadt, Darmstadt (Germany)
  24. Univ. Hamburg, Hamburg (Germany)
  25. Institut de Ciencies de l'Espai, Bellaterra (Spain)
  26. Univ. Heidelberg, Heidelberg (Germany)
  27. Rudjer Boskovic Institute, Zagreb (Croatia)
  28. Univ. of Tokyo, Tokyo (Japan)
  29. Univ. of Rijeka (Croatia)
  30. CEA Irfu, Gif-sur-Yvette (France)
  31. Kyoto Univ., Kyoto (Japan)
  32. Max-Planck-Institut fur Physik, Munich (Germany)
  33. Tokyo Inst. of Technology, Tokyo (Japan)
  34. Brookhaven National Lab. (BNL), Upton, NY (United States)
  35. Univ. of Florida, Gainesville, FL (United States)
  36. Univ. de Zaragoza, Zaragoza (Spain)Univ. de Zaragoza, Zaragoza (Spain)
  37. Univ. of California, Berkeley, CA (United States)
  38. Univ. of Cape Town (South Africa)
  39. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  40. Univ. of Patras, Patras (Greece)
Publication Date:
OSTI Identifier:
1196904
Grant/Contract Number:
AC52-07NA27344
Type:
Accepted Manuscript
Journal Name:
Physics Procedia
Additional Journal Information:
Journal Volume: 61; Journal Issue: C; Journal ID: ISSN 1875-3892
Publisher:
Elsevier
Research Org:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 79 ASTRONOMY AND ASTROPHYSICS dark matter; axion; strong CP problem; helioscopes; IAXO; ALP; astroparticle physics