Prototype of an Integrating Current Transformer for Beam Intensity Measurements in the Large Hadron Collider

• Autorzy: Krupa M , Napieralski A
• Języki publikacji: EN

Abstrakty

EN

The beam intensity (number of particles forming the beam) in the Large Hadron Collider (LHC) is measured by eight current transformers. The average beam current is monitored by the four DC Current Transformers (DCCTs) and the range from a few hundred hertz to over a gigahertz is covered by the four Fast Beam Current Transformers (FBCTs). During the early run of the LHC the beam intensity measured by the FBCTs was observed to be correlated to the beam position and charge distribution. To address the consequential limitations a prototype of an Integrating Current Transformer (ICT) has been developed at CERN as a possible future replacement of the FBCTs. In this article, its design, principle of operation along with results of first beam tests are presented. The measured beam-position-dependency of the ICT has been improved, compared to the FBCT, by a factor of 35 and 50 in the vertical and horizontal planes, respectively.

Słowa kluczowe

EN

beam diagnostics; beam intensity measurements; Integrating Current Transformer; ICT; Fast Beam Current Transformer; FBCT

PL

diagnostyka wiązki; pomiar natężenia wiązki; transformator; ICT; FBCT

• Wydawca: Lodz University of Technology. Department of Microelectronics and Computer Science
• Czasopismo: International Journal of Microelectronics and Computer Science
• Rocznik: 2013
• Tom: Vol. 4, nr 1
• Strony: 32--36
• Opis fizyczny: Bibliogr. 8 poz.

Twórcy

autor

Krupa M

• CERN, Geneva, Switzerland
• Department of Microelectronics and Computer Science, Lodz University of Technology, Lodz, Poland

autor

Napieralski A

• Department of Microelectronics and Computer Science, Lodz University of Technology, Lodz, Poland

Bibliografia

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• [3] D. Belohrad and P. Kaspar, “Fast Beam Intensity Measurements for the LHC,” Ph.D. dissertation, Prague U., 2010, presented on 05 Oct 2010.
• [4] P. Odier, D. Belohrad, J. J. Gras, and M. Ludwig, “Operational Experience and Improvements of the LHC Beam Current Transformers,” Conf. Proc. , vol. C11-05-16.4, no. CERN-BE-2011-015, May 2011.
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• [6] Bergoz Instrumentation, “Integrating CT & Beam Charge Monitor,” March 2013. [Online]. Available: http://www.bergoz.com/
• [7] K. B. Unser, “Design and preliminary tests of a beam intensity monitor for LEP,” no. CERN-LEP-BI-89-07, Mar 1989.
• [8] L. Vos, “The LEP monitor for the measurement of bunch intensity,” CERN, Geneva, Tech. Rep. CERN-SL-94-18-BI, Jun 1994.