Design and verification of a 24 kA calibration head for a DCCT test facility [LHC current control]

Author

Fernqvist, Gunnar ; Jorgensen, Hans-Erik ; Saab, Alfredo

Author_Institution

CERN, Geneva, Switzerland

Volume

48

Issue

2

fYear

1999

fDate

4/1/1999 12:00:00 AM

Firstpage

346

Lastpage

350

Abstract

The Large Hadron Collider is CERN´s next particle accelerator project, scheduled for commissioning in 2005. The project requires accurate current measurements above 10 kA. Calibration heads have been developed in collaboration with industry to work up to 24 kA with a relative measurement uncertainty of 10^-6. This paper describes the design and verification of these heads

Keywords

accelerator RF systems; accelerator control systems; calibration; colliding beam accelerators; commissioning; current comparators; current transformers; electric current control; electric current measurement; measurement uncertainty; particle accelerator accessories; storage rings; test facilities; 10 to 24 kA; DC current transducer test facility; Large Hadron Collider; accurate current measurements; calibration head design; current comparator; current control; external field influence; ratio accuracy tests; relative measurement uncertainty; toroidal measuring head; verification; zero flux detector; Calibration; Current measurement; Feedback; Laboratories; Large Hadron Collider; Magnetic heads; Superconducting magnets; Testing; Transducers; Voltage;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.769598

Filename

769598