Comparison of CERN and metas high current standards up to 10kA

Author

Hudson, Gregory ; Jeckelmann, Beat ; Baumgartner, Jean-Daniel

Author_Institution

CERN, Geneva

fYear

2008

fDate

8-13 June 2008

Firstpage

548

Lastpage

549

Abstract

The Large Hadron Collider (LHC) particle accelerator project will require unprecedented accuracy in the control of the current to the superconducting magnets. A calibration infrastructure has been developed at CERN to ensure current measurement traceability to national standards. The traceability of CERN current measurement chain from 10 mA to 5 A has been assured by periodic calibrations at METAS but an inter- laboratory comparison was necessary to complete a "direct traceability loop" at the kA level. This paper presents the methods and the results of the comparison between CERN and METAS, up to currents of 10 kA.

Keywords

calibration; electric current measurement; measurement standards; particle accelerators; proton-proton inclusive interactions; superconducting magnets; CERN; LHC; Large Hadron Collider; METAS; calibration infrastructure; current 10 mA to 5 A; current measurement; high current standards; particle accelerator project; superconducting magnets; Calibration; Current measurement; Electrical resistance measurement; Large Hadron Collider; Magnetic field measurement; Magnets; Measurement standards; Metrology; Standards development; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements Digest, 2008. CPEM 2008. Conference on

Conference_Location

Broomfield, CO

Print_ISBN

978-1-4244-2399-6

Electronic_ISBN

978-1-4244-2400-9

Type

conf

DOI

10.1109/CPEM.2008.4574896

Filename

4574896