Dynamic behavior of ultra stable oscillators under irradiation at low dose rate

Author

Bourrieau, J. ; Brunet, M. ; Dutrey, John F. ; Laporte, B.

Author_Institution

Office Nat. d´´Etudes et Recherches Aerospatiales, Centre d´´Etudes et Recherches de Toulouse, France

fYear

1993

fDate

13-16 Sep 1993

Firstpage

101

Lastpage

108

Abstract

The radiation induced shifts of frequency observed under fragmented and continuous exposures at low dose rate (Low Earth´s Orbit-LEO-and Geostationary Earth´s Orbit-GEO-simulations) on Ultra Stable Oscillators equipped with electrodeless (BVA) and self sustained (QAS) crystals, with swept and unswept quartz are presented. The drifts appear as the sum of two components; the first saturating and annealing rapidly, the second, seen during continuous exposure, probably varies during the few months after the end of the irradiation

Keywords

crystal resonators; frequency stability; quartz; radiation effects; Geostationary Earth´s Orbit; Low Earth´s Orbit; continuous exposure; electrodeless crystals; low dose rate; quartz resonators; radiation induced frequency shifts; self sustained crystals; swept quartz; ultra stable oscillators; unswept quartz; Annealing; Belts; Electron traps; Frequency; Low earth orbit satellites; Magnetic flux; Magnetic shielding; Magnetosphere; Oscillators; Protons;

fLanguage

English

Publisher

ieee

Conference_Titel

Radiation and its Effects on Components and Systems, 1993.,RADECS 93., Second European Conference on

Conference_Location

St. Malo

Print_ISBN

0-7803-1793-9

Type

conf

DOI

10.1109/RADECS.1993.316546

Filename

316546