Effects of Unequal Inter and Intra-Toroid Response Times on the Quench Performance of the System of Three ATLAS Toroids
The ATLAS Experiment at the LHC (CERN) has a toroidal magnet system composed of one barrel toroid and two end cap toroids powered in series at 20.5 kA with a total stored energy of 1.6 GJ. So far the three magnets have been tested independently. In preparation of the overall magnet system test, here...
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| Veröffentlicht in: | IEEE transactions on applied superconductivity 2009-06, Vol.19 (3), p.1290-1293 |
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| container_title | IEEE transactions on applied superconductivity |
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| creator | Volpini, G. Baccaglioni, G. Baynham, E.D. Berriaud, C. Dudarev, A. ten Kate, H.H.J. |
| description | The ATLAS Experiment at the LHC (CERN) has a toroidal magnet system composed of one barrel toroid and two end cap toroids powered in series at 20.5 kA with a total stored energy of 1.6 GJ. So far the three magnets have been tested independently. In preparation of the overall magnet system test, here we review the quench behavior under normal and faulty conditions including the information gained from the test of the three single magnets. In particular the consequences of variations in effective quench detection and quench heater activation times are studied. The effects on energy re-distribution, peak temperatures and internal voltage in the three toroids and between the 8 coils within a single toroid are investigated. Based on simulation studies partly verified by experiments, conclusions regarding the quench performance of the entire system are drawn. |
| doi_str_mv | 10.1109/TASC.2009.2018059 |
| format | Article |
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So far the three magnets have been tested independently. In preparation of the overall magnet system test, here we review the quench behavior under normal and faulty conditions including the information gained from the test of the three single magnets. In particular the consequences of variations in effective quench detection and quench heater activation times are studied. The effects on energy re-distribution, peak temperatures and internal voltage in the three toroids and between the 8 coils within a single toroid are investigated. 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| identifier | ISSN: 1051-8223 |
| ispartof | IEEE transactions on applied superconductivity, 2009-06, Vol.19 (3), p.1290-1293 |
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| source | IEEE Electronic Library (IEL) |
| subjects | Activation analysis Applied sciences Circuits Cyclic accelerators and storage rings Delay Detector magnet Electric potential Electrical engineering. Electrical power engineering Electromagnets Exact sciences and technology Experimental methods and instrumentation for elementary-particle and nuclear physics General equipment and techniques Heating equipment Instruments, apparatus, components and techniques common to several branches of physics and astronomy Internal energy Large Hadron Collider Miscellaneous Nuclear physics Physics quench propagation Safety Sensors (chemical, optical, electrical, movement, gas, etc.) remote sensing Simulation Superconducting coils Superconducting magnets superconducting winding Superconductivity System testing Temperature Toroidal magnetic fields Toroids Various equipment and components Voltage |
| title | Effects of Unequal Inter and Intra-Toroid Response Times on the Quench Performance of the System of Three ATLAS Toroids |
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