ATLAS Magnet System Nearing Completion

Kate, H.H.J. ten

doi:10.1109/tasc.2008.921226

Cited by 11 publications

(13 citation statements)

References 17 publications

(16 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The toroid's stored energy will be 500 MJ. The design is inspired by the ATLAS barrel and end-cap toroids [77,78], the largest superconducting toroids built and presently in operation at CERN. Each of the eight magnet bores will be equipped with a detection line composed of an x-ray-optics telescope and a low-background detector.…”

Section: Helioscopesmentioning

confidence: 99%

High magnetic fields for fundamental physics

et al. 2018

View full text Add to dashboard Cite

Various fundamental-physics experiments such as measurement of the birefringence of the vacuum, searches for ultralight dark matter (e.g., axions), and precision spectroscopy of complex systems (including exotic atoms containing antimatter constituents) are enabled by high-field magnets. We give an overview of current and future experiments and discuss the state-of-the-art DCand pulsed-magnet technologies and prospects for future developments. * Electronic address: budker@uni-mainz.de †

show abstract

Section: Helioscopesmentioning

confidence: 99%

High magnetic fields for fundamental physics

et al. 2018

View full text Add to dashboard Cite

show abstract

“…This avoids two-phase flow within the magnet cryostat and hence the complexity of controlling such a flow within a system whose inclination angle is continuously changing. The coolant flows in a piping system attached to the coil casings, allowing for conduction cooling in a manner similar to the ATLAS toroids [7], [8]. The cryogenic system concept features a helium compression and gas management that are ground stationary.…”

Section: F Cryogenicsmentioning

confidence: 99%

The Superconducting Toroid for the New International AXion Observatory (IAXO)

Shilon

Dudarev

Silva

et al. 2014

IEEE Trans. Appl. Supercond.

View full text Add to dashboard Cite

Abstract-IAXO, the new International AXion Observatory, will feature the most ambitious detector for solar axions to date. Axions are hypothetical particles which were postulated to solve one of the puzzles arising in the standard model of particle physics, namely the strong CP (Charge conjugation and Parity) problem. This detector aims at achieving a sensitivity to the coupling between axions and photons of one order of magnitude beyond the limits of the current detector, the CERN Axion Solar Telescope (CAST). IAXO is equivalent to combining roughly 20000 CAST detectors into a single apparatus. The IAXO detector relies on a high-magnetic field distributed over a very large volume to convert solar axions to detectable X-ray photons. Inspired by the ATLAS barrel and end-cap toroids, a large superconducting toroid is being designed. The toroid comprises eight, one meter wide and twenty one meters long racetrack coils. The assembled toroid is sized 5.2 m in diameter and 25 m in length and its mass is about 250 tons. The useful field in the bores is 2.5 T while the peak magnetic field in the windings is 5.4 T. At the operational current of 12 kA the stored energy is 500 MJ. The racetrack type of coils are wound with a reinforced Aluminum stabilized NbTi/Cu cable and are conduction cooled. The coils optimization is shortly described as well as new concepts for cryostat, cold mass, supporting structure and the sun tracking system. Materials selection and sizing, conductor, thermal loads, the cryogenics system and the electrical system are described. Lastly, quench simulations are reported to demonstrate the system's safe quench protection scheme.

show abstract

“…This avoids two-phase flow, that would be very difficult to control due to the continuously changing inclination angle of the magnet, within the magnet cryostat. The coolant flows in a piping system attached to the coil casings, allowing for conduction cooling in a manner similar to the ATLAS toroids [7,8]. The decision for using this design is following the same philosophy of our concept: a known technology with a low-cost proven solution and most reliable.…”

Section: F Cryogenicsmentioning

confidence: 99%

New superconducting toroidal magnet system for IAXO, the international AXion observatory

Shilon¹,

Dudarev²,

Silva³

et al. 2014

AIP Conference Proceedings

View full text Add to dashboard Cite

Abstract. Axions are hypothetical particles that were postulated to solve one of the puzzles arising in the standard model of particle physics, namely the strong CP (Charge conjugation and Parity) problem. The new International AXion Observatory (IAXO) will incorporate the most promising solar axions detector to date, which is designed to enhance the sensitivity to the axion-photon coupling by one order of magnitude beyond the limits of the current state-of-the-art detector, the CERN Axion Solar Telescope (CAST). The IAXO detector relies on a high-magnetic field distributed over a very large volume to convert solar axions into X-ray photons. Inspired by the successful realization of the ATLAS barrel and end-cap toroids, a very large superconducting toroid is currently designed at CERN to provide the required magnetic field. This toroid will comprise eight, one meter wide and twenty one meter long, racetrack coils. The system is sized 5.2 m in diameter and 25 m in length. Its peak magnetic field is 5.4 T with a stored energy of 500 MJ. The magnetic field optimization process to arrive at maximum detector yield is described. In addition, materials selection and their structure and sizing has been determined by force and stress calculations. Thermal loads are estimated to size the necessary cryogenic power and the concept of a forced flow supercritical helium based cryogenic system is given. A quench simulation confirmed the quench protection scheme.

show abstract

ATLAS Magnet System Nearing Completion

Cited by 11 publications

References 17 publications

High magnetic fields for fundamental physics

High magnetic fields for fundamental physics

The Superconducting Toroid for the New International AXion Observatory (IAXO)

New superconducting toroidal magnet system for IAXO, the international AXion observatory

Contact Info

Product

Resources

About