The SPM1

Purpose and Concept

• “Simple Magnetised Torus” Compact demonstration device

• Fully self contained within a  90 x 90  x 160 cm envelop, easily transportable and suitable for public demonstration.

• Low temperature plasma (1 to 5 ev) demonstrating the effect of magnetic fields on plasma shape, position and emission spectrum.

• Toroidal,  Poloidal and Solenoid Coils with independent low voltage power supplies

• Continuous operation, safe enough to demonstrate to public.

• Glow discharge plasma operation.

• Spectrometer and basic plasma diagnostics

• Modular, Upgradeable performance to suit post graduate teaching and research . E x B, J x B, Cross field, Plasma Instability demonstrations.

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Architecture

• Major Radius 23 cm Minor Radius 7.5 cm

• 8 TF Coils each with independent power supplies

• Toroidal field of up to 0.025 T continuous. Up to 0.1T pulsed.

• 4 Poloidal field coils , each with independent control.

• Low voltage Solenoid coil with AC and DC drive

• Glow discharge plasma operation using variable HV and RF sources in N2 or He

• Cameras with Vision based tracking of plasma position and shape

• UV - VIS Spectrometer , Langmuir probe, Hall effect Magnetometer

• Laser diagnostics port

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