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

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 proceeding › Conference 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 language	English
Title of host publication	Proceedings of the 6th International Particle Accelerator Conference (IPAC), (Richmond, VA, 3-8 May 2015)
Pages	3141-3144
Number of pages	4
ISBN (Electronic)	9783954501687
Publication status	Published - May 2015
Externally published	Yes
Event	6th International Particle Accelerator Conference - Thomas Jefferson National Acceleration Facility, Richmond, United States Duration: 3 May 2015 → 8 May 2015 Conference number: 6

Conference

Conference	6th International Particle Accelerator Conference
Abbreviated title	IPAC 2015
Country/Territory	United States
City	Richmond
Period	3/05/15 → 8/05/15

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https://cds.cern.ch/record/2141882/files/wepha017.pdfLicence: CC BY

Cite this

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) https://cds.cern.ch/record/2141882/files/wepha017.pdf

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title = "Qualification of the Bypass Continuity of the Main Dipole Magnet Circuits of the LHC",

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",

year = "2015",

month = may,

language = "English",

pages = "3141--3144",

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

note = "6th International Particle Accelerator Conference, IPAC 2015 ; Conference date: 03-05-2015 Through 08-05-2015",

}

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, Virginia, United States, 3/05/15. <https://cds.cern.ch/record/2141882/files/wepha017.pdf>

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

N1 - Conference code: 6

PY - 2015/5

Y1 - 2015/5

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

SP - 3141

EP - 3144

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

T2 - 6th International Particle Accelerator Conference

Y2 - 3 May 2015 through 8 May 2015

ER -

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

Abstract

Conference

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