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Title: Gamma Irradiation of Magnetoresistive Sensors for Planetary Exploration
Authors: Sanz, R.
Fernández, A. B.
Domínguez, J. A.
Martín Vodopivec, B.
Díaz Michelena, M.
Keywords: Magnetic devices;Radiation effects in devices;Gamma ray effects;Space applications;Space radiation effects
Issue Date: 2-Apr-2012
Publisher: Multidisciplinary Digital Publishing Institute (MDPI)
DOI: 10.3390/s120404447
Published version:
Citation: Sensors 12(4): 4447-4465(2012)
Abstract: A limited number of Anisotropic Magnetoresistive (AMR) commercial-off-the-shelf (COTS) magnetic sensors of the HMC series by Honeywell, with and without integrated front-end electronics, were irradiated with gamma rays up to a total irradiation dose of 200 krad (Si), following the ESCC Basic Specification No. 22900. Due to the magnetic cleanliness required for these tests a special set-up was designed and successfully employed. Several parameters of the sensors were monitored during testing and the results are reported in this paper. The authors conclude that AMR sensors without front-end electronics seem to be robust against radiation doses of up to 200 krad (Si) with a dose rate of 5 krad (Si)/hour and up to a resolution of tens of nT, but sensors with an integrated front-end seem to be more vulnerable to radiation.
Description: This is an open access article distributed under the Creative Commons Attribution License
E-ISSN: 1424-8220
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