Fine Beam Tube T
About The 310x275x410 mm³Weight: approx. The tube and coil pair are both connected internally to the operating unit without a need for external wiring.7
The system comes complete with a fine-beam tube, Helmholtz coil pair for generating a uniform magnetic field, and operating unit for power supply. The anode voltage and coil current are displayed digitally and can be tapped additionally as equivalent voltage values. Inside the fine beam tube, a sharply delimited electron beam is generated by a system comprising an indirectly heated oxide cathode, perforated anode and Wehnelt cylinder. The magnetic field can be calculated from the coil current, the geometry of the Helmholtz coil pair being known.Fine-beam tube:Gas filling: NeonGas pressure: 1.3x10-5 hPaBulb diameter: 165 mmOrbit diameter: 20 … 120 mmMeasurement mark spacing: 20 mmHelmholtz coil pair:Coil diameter: approx.300 mmWinding count: 124Magnetic field: 0 …3.4 mT (0.75 mT/A)Operating unit:Coil current: 0 … 4.5 A, 3-figure digital displayMeasurement output: 1 V*IB / AAnode voltage: 15 … 300 V, 3-figure digital displayMeasurement output: 0.01*UAHeating voltage: 5 … 7 VWehnelt voltage: 0 … -50 VGeneral data: Tube's rotary angle: -10° … 270°Supply voltage: 100 – 240 V, 50/60 HzPower supply cable: EU, UK and USDimensions: approx.310x275x410 mm³Weight: approx.7.5 kgThe complete fine-beam tube system consists of the following parts: Operating Unit for Fine-Beam Tube All supply voltages for the tube and the current through the Helmholtz coils are adjustable. The fine beam tube and Helmholtz coil pair are mounted on the operating unit, the fine beam tube being rotatable around its vertical axis. Diameter, anode voltage and magnetic field are the parameters used to determine the electron's specific charge. If the tube is aligned optimally and an appropriate current flows through the Helmholtz coils, the electrons are deflected into a circular orbit, whose diameter can be easily determined when the electrons strike one of the equidistant measurement marks, causing its end to light up. The tube and coil pair are both connected internally to the operating unit without a need for external wiring. Experiment Topics:• Electron deflection in a uniform magnetic field• Closed orbit or spiral path• Determining an electron's specific charge e/mThis complete experimental system is used to determine an electron's specific charge and investigate the deflection of electron beams in a uniform magnetic field. Impact ionization of neon atoms creates a very bright, also sharply delimited trace of the electron path in the tube.
Lab Equipment,Lab Equipment Parts
Fine Beam Tube T
Lab Equipment,Lab Equipment Parts
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