The Normal Zone Propagation in ATLAS B00 Model Coil


Boxman, E.W. and Dudarev, A.V. and Kate, H.H.J. ten (2002) The Normal Zone Propagation in ATLAS B00 Model Coil. IEEE Transactions on Applied Superconductivity, 12 (1). pp. 1549-1552. ISSN 1051-8223

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Abstract:The B00 model coil has been successfully tested in the ATLAS Magnet Test Facility at CERN. The coil consists of two double pancakes wound with aluminum stabilized cables of the barrel- and end-cap toroids conductors for the ATLAS detector. The magnet current is applied up to 24 kA and quenches are induced by firing point heaters. The normal zone velocity is measured over a wide range of currents by using pickup coils, voltage taps and superconducting quench detectors. The signals coming from various sensors are presented and analyzed. The results extracted from the various detection methods are in good agreement. It is found that the characteristic velocities vary from 5 to 20 m/s at 15 and 24 kA respectively. In addition, the minimum quench energies at different applied magnet currents are presented.
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