Calibration Chamber
To understand the response of scientific instrumentation in space a good knowledge of their behavior is needed. This is achieved during the calibration of these instruments on ground. In our advanced calibration facility we can expose space plasma instrumentation to a well characterized positive ion beam, energetic neutral atoms, electrons or UV photons.
Technical Specifications
- Dimensions Chamber (inside)
- $1500 mm$ diameter, $1600 mm$ length
- Pressure
- <$10^{-6} mbar$
- Temperature
- Room temperature
- Logging
- Customized control and logging system allowing advanced motion patterns
- Vacuum Flanges
- $1$ DN 40 ISO-KF
- $1$ DN 250 ISO-K
- $1$ DN 250 ISO-K for controlling includes one unused DN 100 ISO-K flange
- Vacuum Feed Throughs
- List of possible connectors available on request
- Dimensions Mounting Plate
- $365 mm$ diameter
- Material Mounting Plate
- Aluminum
- Pattern Mounting Plate
- center to center
- Turn-table
- 4-axis of freedom (two translational and two rotational axis)
- Calibration Sources
- Ion source: Peabody Scientific, model P/N B00404
- Electron source
- UV source
- Optional Equipment
- Residual gas analyzer
The table has weight limitations, for further information please contact us with the dimensions of your test object.
Calibration Source Specifications
Particle Sources
| Parameter | Ion Source | Electron Source | Energetic Neutral Atoms |
|---|---|---|---|
| Energy Range | $20eV$ - $50keV$ | $50eV$ - $50keV$ | <$3keV$ |
| Possible Particle Species | $H^+, H_2^+, H_3^+, He^+, C^+, N^+, H_2O^+, Ar^{++}, N_2^+, O_2^+, Ar^+, Ar_2^+$ | $e^-$ | $H, He, N, O$ |
| Beam Characterization | Faraday cup, beam current grid and beam scanner | - | Beam current grid |
| Beam Direction | Horizontal | Vertical | Horizontal |
| Ion Optics of beam | |||
| Field of view coverage of beam | Hemisphere | Hemisphere | Hemisphere |
Ion Optics of beam
Wien filter for mass separation <$80mm$ beam diameter>$100nA$ beam intensity electrostatic analyzer for X-ray suppression surface ionization of ion beam platinum gauze filament coated with Barium-carbonate. <$80mm$ beam diameter >$100nA$ beam intensity surface ionization of electron beam | Uses positive ion beam as input scattering on highly polished tungsten for energetic neutral atom production
UV Source
There is one deuterium UV lamp available, which can be integrated into the calibration tank, and produced Lyman-alpha radiation with 121 nm wavelength. The radiator area is 1 cm2 and capable of producing fluxes similar to the Sun’s. It is a fixed lamp.
Photos: Annelie Klint Nilsson, IRF