Dual Beam Tube (S Type)

Code: se1000622 24

The dual beam tube is a partly evacuated electron tube, filled with neon at low pressure and equipped with both axial and perpendicular electron guns. The electron beams are perpendicular to one an...


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£696.39 EACH
£835.67 inc. VAT

The dual beam tube is a partly evacuated electron tube, filled with neon at low pressure and equipped with both axial and perpendicular electron guns. The electron beams are perpendicular to one another and a common deflector plate is provided for both guns. The electron beam source is an oxide cathode heated indirectly via a heating coil. The electron paths show up as a fine, orange beam due to impact excitation of the neon atoms. The dual beam tube can be used to determine the specific charge e/m from the diameter of the path followed by electrons fired into the tube from a perpendicularly mounted gun with a vertically aligned magnetic field and observation of the spiral path followed by electrons fired axially into a co-axial magnetic field.

Experiment topics:

  • Determination of the specific charge e/m for tangential injection and perpendicular magnetic field
  • Observation of the spiral path followed by electrons fired axially into a co-axial magnetic field

Specifications:

  • Filament voltage UF: max. 7.5V AC/DC
  • Anode current IA: max. 30mA
  • Anode voltage UA: maximum value so that the anode current IA ≤ 30mA (typical 120 - 300V DC)
  • Deflector voltage: max. 50V DC
  • Glass bulb: 130mm Ø approx.
  • Total length: 260mm approx.
  • Gas filling: neon

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Description
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SE1000654
Unit:EACH
List Price: £849.48
Source:List Price
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