New Bridge Temperature Sensor for Superconducting Magnets and other Cryogenic Applications

Dudarev, Alexey
Bremer, J.
Mulder, T.
Mentink, M.
ter Harmsel, J.
ten Kate, H. H.J.

Open link

Publication date

April 2018

DOI

10.1109/tasc.2017.2782212

Publisher

Institute of Electrical and Electronics Engineers (IEEE)

ISSN

1051-8223

Abstract

A few hundred temperature sensors are used to monitor the temperature behavior of the gigantic ATLAS toroid superconducting magnet system during cool down and normal operation. In order to guarantee good sensitivity of temperature measurements in the range from liquid helium to room temperature, two types of sensors are positioned at the same location: platinum resistance thermometers for the range 30-300 K and carbon composition resistors (Allen-Bradley) for the 4 to 30 K range. Both types are very well known for use in cryogenics and they have performed satisfactorily during 10 year of ATLAS operation. The sensors themselves are easily available and inexpensive and the main cost is for the many kilometers of cold and warm instrumentation ...