Gamma Irradiation of Magnetoresistive Sensors for Planetary Exploration
| Autor: | Ana B. Fernández, Boris Martín, Jose A. Dominguez, Ruy Sanz, Marina D. Michelena |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | Sensors, Vol 12, Iss 4, Pp 4447-4465 (2012) |
| Druh dokumentu: | article |
| ISSN: | 12040444 1424-8220 |
| DOI: | 10.3390/s120404447 |
| Popis: | 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. |
| Databáze: | Directory of Open Access Journals |
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