Thomson Tube S

Thomson Tube S, 1000617 [U18555], Electron Tubes S
Thomson Tube S, 1000617 [U18555], Electron Tubes S
1,170.00
In stock
Experiment Topics: ..
The following topics can be discussed with this highly evacuated tube: 
•  Investigate the deflection of an electron beam by a magnetic field
•  Investigate the deflection of an electron beam by an electric field
•  Build a velocity filter using orthogonal electric and magnetic fields
•  Estimate the specific charge e/m of an electron.

Product Information: ..
The Thomson tube comprises an electron gun which emits a narrow, focussed ribbon of cathode rays within an evacuated, clear glass bulb. A tungsten 'hairpin' filament hot cathode is heated directly and the anode takes the form of a cylinder. The deflection of rays can be achieved electrostatically by means of a built-in plate capacitor formed by the pair of deflection plates or magnetically with the help of the Helmholtz coils S (1000611) magnetically. The cathode rays are intercepted by a flat mica sheet, one side of which is coated with a fluorescent screen and the other side of which is printed with a milimetre graticule so that the path of the electrons can be easily traced. The mica sheet is held at 10° to the axis of the tube by the two deflecting plates.
The Thomson tube is intended for investigating the deflection of electron beams in electrical and magnetic fields. It can be used to estimate the specific charge of an electron e/m and to determine the electron velocity v.

Specifications: ..
Filament voltage U: max. 6.3 V AC/DC
Anode voltage U: 2000 V – 5000 V DC
Anode current I: 0.1 mA approx. at UA = 4000 V
Deflector plate voltage: max. 350 V
Distance between plates: 8 mm approx
Fluorescent screen: 80 mm x 80 mm approx
Glass bulb: 130 mm Ø approx
Total length: 260 mm approx


Required

Overview of all experiments in which the product is used

Item No.: 1000617 [U18555]
Weight 0.71 kg
Dimensions 35.1 x 28.2 x 22.1 cm
Brand 3B Scientific Teltron
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