Qualification of the Bypass Continuity of the Main Dipole Magnet Circuits of the LHC

Scott Rowan, Bernhard Auchmann, Krzysztof Brodzinksi, Zinour Charifoulline, B Panev, F Rodriguez-Mateos, Ivan Romera, Rudiger Schmidt, Andzej Siemko, Jens Steckert, Hughes Thiesen, Arjan Verweij, Gerard Willering, Hugh Pfeffer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The copper-stabilizer continuity measurement (CSCM) was devised in order to attain complete electrical qualification of all busbar joints, lyres, and the magnet bypass connections in the 13 kA circuits of the LHC. A CSCM is carried out at ∼20 K, i.e., just above the critical temperature, with resistive magnets. The circuit is then subject to an incremental series of controlled powering cycles, ultimately mimicking the decay from nominal current in the event of a magnet quench. A type test to prove the validity of such a procedure was carried out with success in April 2013, leading to the scheduling of a CSCM on all main dipole circuits up to and including 11.1 kA, i.e., the current equivalent of 6.5 TeV operation. This paper details the procedure, with respect to the type test, as well as the results and analyses of the LHC-wide qualification campaign.
Original languageEnglish
Title of host publicationProceedings of the 6th International Particle Accelerator Conference (IPAC), (Richmond, VA, 3-8 May 2015)
Pages3141-3144
Number of pages4
ISBN (Electronic)9783954501687
Publication statusPublished - May 2015
Externally publishedYes
Event6th International Particle Accelerator Conference - Thomas Jefferson National Acceleration Facility, Richmond, United States
Duration: 3 May 20158 May 2015
Conference number: 6

Conference

Conference6th International Particle Accelerator Conference
Abbreviated titleIPAC 2015
CountryUnited States
CityRichmond
Period3/05/158/05/15

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bypasses
qualifications
continuity
magnets
dipoles
copper
scheduling
critical temperature
cycles
decay

Cite this

Rowan, S., Auchmann, B., Brodzinksi, K., Charifoulline, Z., Panev, B., Rodriguez-Mateos, F., ... Pfeffer, H. (2015). Qualification of the Bypass Continuity of the Main Dipole Magnet Circuits of the LHC. In Proceedings of the 6th International Particle Accelerator Conference (IPAC), (Richmond, VA, 3-8 May 2015) (pp. 3141-3144)
Rowan, Scott ; Auchmann, Bernhard ; Brodzinksi, Krzysztof ; Charifoulline, Zinour ; Panev, B ; Rodriguez-Mateos, F ; Romera, Ivan ; Schmidt, Rudiger ; Siemko, Andzej ; Steckert, Jens ; Thiesen, Hughes ; Verweij, Arjan ; Willering, Gerard ; Pfeffer, Hugh. / Qualification of the Bypass Continuity of the Main Dipole Magnet Circuits of the LHC. Proceedings of the 6th International Particle Accelerator Conference (IPAC), (Richmond, VA, 3-8 May 2015). 2015. pp. 3141-3144
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abstract = "The copper-stabilizer continuity measurement (CSCM) was devised in order to attain complete electrical qualification of all busbar joints, lyres, and the magnet bypass connections in the 13 kA circuits of the LHC. A CSCM is carried out at ∼20 K, i.e., just above the critical temperature, with resistive magnets. The circuit is then subject to an incremental series of controlled powering cycles, ultimately mimicking the decay from nominal current in the event of a magnet quench. A type test to prove the validity of such a procedure was carried out with success in April 2013, leading to the scheduling of a CSCM on all main dipole circuits up to and including 11.1 kA, i.e., the current equivalent of 6.5 TeV operation. This paper details the procedure, with respect to the type test, as well as the results and analyses of the LHC-wide qualification campaign.",
author = "Scott Rowan and Bernhard Auchmann and Krzysztof Brodzinksi and Zinour Charifoulline and B Panev and F Rodriguez-Mateos and Ivan Romera and Rudiger Schmidt and Andzej Siemko and Jens Steckert and Hughes Thiesen and Arjan Verweij and Gerard Willering and Hugh Pfeffer",
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Rowan, S, Auchmann, B, Brodzinksi, K, Charifoulline, Z, Panev, B, Rodriguez-Mateos, F, Romera, I, Schmidt, R, Siemko, A, Steckert, J, Thiesen, H, Verweij, A, Willering, G & Pfeffer, H 2015, Qualification of the Bypass Continuity of the Main Dipole Magnet Circuits of the LHC. in Proceedings of the 6th International Particle Accelerator Conference (IPAC), (Richmond, VA, 3-8 May 2015). pp. 3141-3144, 6th International Particle Accelerator Conference, Richmond, United States, 3/05/15.

Qualification of the Bypass Continuity of the Main Dipole Magnet Circuits of the LHC. / Rowan, Scott; Auchmann, Bernhard; Brodzinksi, Krzysztof; Charifoulline, Zinour; Panev, B; Rodriguez-Mateos, F; Romera, Ivan; Schmidt, Rudiger; Siemko, Andzej; Steckert, Jens; Thiesen, Hughes; Verweij, Arjan; Willering, Gerard; Pfeffer, Hugh.

Proceedings of the 6th International Particle Accelerator Conference (IPAC), (Richmond, VA, 3-8 May 2015). 2015. p. 3141-3144.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Qualification of the Bypass Continuity of the Main Dipole Magnet Circuits of the LHC

AU - Rowan, Scott

AU - Auchmann, Bernhard

AU - Brodzinksi, Krzysztof

AU - Charifoulline, Zinour

AU - Panev, B

AU - Rodriguez-Mateos, F

AU - Romera, Ivan

AU - Schmidt, Rudiger

AU - Siemko, Andzej

AU - Steckert, Jens

AU - Thiesen, Hughes

AU - Verweij, Arjan

AU - Willering, Gerard

AU - Pfeffer, Hugh

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N2 - The copper-stabilizer continuity measurement (CSCM) was devised in order to attain complete electrical qualification of all busbar joints, lyres, and the magnet bypass connections in the 13 kA circuits of the LHC. A CSCM is carried out at ∼20 K, i.e., just above the critical temperature, with resistive magnets. The circuit is then subject to an incremental series of controlled powering cycles, ultimately mimicking the decay from nominal current in the event of a magnet quench. A type test to prove the validity of such a procedure was carried out with success in April 2013, leading to the scheduling of a CSCM on all main dipole circuits up to and including 11.1 kA, i.e., the current equivalent of 6.5 TeV operation. This paper details the procedure, with respect to the type test, as well as the results and analyses of the LHC-wide qualification campaign.

AB - The copper-stabilizer continuity measurement (CSCM) was devised in order to attain complete electrical qualification of all busbar joints, lyres, and the magnet bypass connections in the 13 kA circuits of the LHC. A CSCM is carried out at ∼20 K, i.e., just above the critical temperature, with resistive magnets. The circuit is then subject to an incremental series of controlled powering cycles, ultimately mimicking the decay from nominal current in the event of a magnet quench. A type test to prove the validity of such a procedure was carried out with success in April 2013, leading to the scheduling of a CSCM on all main dipole circuits up to and including 11.1 kA, i.e., the current equivalent of 6.5 TeV operation. This paper details the procedure, with respect to the type test, as well as the results and analyses of the LHC-wide qualification campaign.

M3 - Conference contribution

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EP - 3144

BT - Proceedings of the 6th International Particle Accelerator Conference (IPAC), (Richmond, VA, 3-8 May 2015)

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Rowan S, Auchmann B, Brodzinksi K, Charifoulline Z, Panev B, Rodriguez-Mateos F et al. Qualification of the Bypass Continuity of the Main Dipole Magnet Circuits of the LHC. In Proceedings of the 6th International Particle Accelerator Conference (IPAC), (Richmond, VA, 3-8 May 2015). 2015. p. 3141-3144