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Radiation tolerant isolation amplifiers for temperature measurement

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Zong, Yi and Franco Peláez, Francisco Javier and Agapito Serrano, Juan Andrés and Fernandes, Ana C. and Marques, José G. (2006) Radiation tolerant isolation amplifiers for temperature measurement. Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 568 (2). pp. 869-876. ISSN 0168-9002

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Official URL: http://www.sciencedirect.com/science/article/pii/S0168900206015774



Abstract

This paper concentrates on the selection of radiation tolerant isolation amplifiers, which are suitable for the signal conditioners for cryogenic system in the Large Hadron Collider (LHC). The evolution and the results of different commercial isolation amplifiers’ parameters under neutron and gamma radiation are presented. In most cases, the tested isolation amplifiers’ input offset voltage, bias currents and output offset voltage hardly changed during the radiation. The \{DC\} gain in input stage was only affected for some isolation amplifiers with a small open loop gain. Transmission coefficient showed decrease for all the tested isolation amplifiers. Also, the \{DC\} output voltage increased and the ripple voltage decreased for all the build-in isolated regulators. In addition, results on 1B41 signal conditioner showed that it was tolerant to 7–8×1012 n/cm2, which was 50\% higher than the expected dose in the LHC.


Item Type:Article
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© 2006 Elsevier.

Uncontrolled Keywords:COTS; Isolation amplifiers; Radiation damage
Subjects:Sciences > Physics > Electronics
Sciences > Physics > Radioactivity
ID Code:28868
Deposited On:03 Mar 2015 09:30
Last Modified:10 Dec 2018 14:58

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