TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

EXOSAT [4 records]

Record 1 2007-01-11

English

Subject field(s)
  • Titles of International Programs
  • Spacecraft
OBS

The Exosat mission was approved in 1973, when the intention was to take very simple readings of X-ray sources-at that time a relavively small number of positions were known. Designed to observe and detect high-energy sources, Exosat was the first ESA mission to study the Universe at X-ray wavelengths, and one of the first unmanned satellites to feature an on-board computer.

French

Domaine(s)
  • Titres de programmes internationaux
  • Engins spatiaux
Key term(s)
  • mission Exosat

Spanish

Save record 1

Record 2 2002-06-17

English

Subject field(s)
  • Astronautics
  • Scientific Instruments
CONT

The extraction system consists of 3 grids: the plasma grid on high positive voltage (60 kV, 93 kV or 100 kV, respectively), the decel grid on low negative voltage (-1.5 kV), and the grounded grid. The decel voltage is generated by autobiasing, i.e. by the extracted current and prevents secondary electrons generated in the grid system entering the plasma source.

OBS

EXOSAT instrumentation.

French

Domaine(s)
  • Astronautique
  • Instruments scientifiques

Spanish

Save record 2

Record 3 2001-04-01

English

Subject field(s)
  • Spacecraft

French

Domaine(s)
  • Engins spatiaux

Spanish

Save record 3

Record 4 1984-12-19

English

Subject field(s)
  • Optics
  • Astrophysics and Cosmography
CONT

Worthy of special mention was the excellent performance achieved by the calibration model of the X-ray optics [of the ESA EXOSAT satellite] during the testing of the imaging mirrors at a special long X-ray beam facility.

French

Domaine(s)
  • Optique
  • Astrophysique et cosmographie

Spanish

Save record 4

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