Large scale application of magnetoresistors in the magnetic field measuring system of the L3 detector

https://doi.org/10.1016/0168-9002(92)90085-IGet rights and content

Abstract

The design and implementation of the magnetic field measuring system of the L3 detector is described. The system features 992 permanently installed magnetoresistors which serve the mapping of the nominally 0.5 T field of the L3 magnet over its entire 1200 m3 volume. It enables the reconstruction of the magnetic field to an accuracy of better than 0.4%. To allow the magnetoresistors to be used over an extended range of ambient temperatures, a passive temperature compensation scheme has been devised. An internally calibrated read-out system under microprocessor control facilities easy access to the magnetic field data. Furthermore, the mechanical design of the system, its calibration and the field reconstruction procedures are described.

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Cited by (0)

1

Now at CERN, Geneva, Switzerland.

2

Now at Océ Nederland bv, Venlo, The Netherlands.

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