Electrostatic Deflection Cathode Ray Tube
Product Code : JA-APE-9391
The Electrostatic Deflection Cathode Ray Tube (SKU JA-APE-9391) is a Crookes tube that shows an electron beam being deflected by an electric field. In this electrostatic deflection Crookes tube, a thin aluminium sheet with a narrow slit near one electrode lets a narrow beam of electrons pass along a phosphor-coated screen, where it appears as a bright green line, and two additional electrodes allow voltages to be applied to deflect the beam and observe the result on the screen.
Specifications
The tube is a highly evacuated glass Crookes tube with a slit aluminium sheet, a phosphor-coated screen along its length and two additional deflection electrodes; it is operated with a variable 2-12 V DC supply, a high-voltage DC source and two sets of connecting leads.
| Product | Electrostatic Deflection Cathode Ray Tube |
| SKU | JA-APE-9391 |
| Type | Crookes tube, electrostatic deflection version |
| Beam former | Thin aluminium sheet with a thin slit near one electrode |
| Screen | Phosphor-coated screen along the length of the tube; the beam shows as a bright green line |
| Deflection | Two additional electrodes for applying deflecting voltages |
| Construction | Highly evacuated glass chamber, fragile; mount in the holders provided before connecting |
| Required to operate | Variable DC power supply 2-12 V; high-voltage DC source; two sets of leads (banana plugs and alligator clips) |
Demonstrations with the electrostatic deflection tube
The tube is used to show that cathode rays are streams of charged particles: applying a voltage across the deflection electrodes bends the green trace, and the direction of bending shows that the electrons carry negative charge.
- Making an electron beam visible on a phosphor screen
- Deflecting the beam with an electric field
- Showing from the direction of deflection that electrons are negatively charged
- Comparing with magnetic deflection using the Magnetic Effect tube
Scope of supply
The listing covers the electrostatic deflection Crookes tube. The 2-12 V DC supply, high-voltage DC source, connecting leads, spares and quantities are confirmed on the quotation.
Packing, MOQ and lead time
Minimum order quantity, lead time and packing are confirmed on each quotation according to the quantity and delivery destination. JaincoLab supplies Crookes tubes and atomic physics apparatus to colleges, schools and education projects, and exports to buyers in Africa, the Middle East and South and South-East Asia.
Frequently asked questions
What does the electrostatic deflection tube show?
A narrow electron beam, seen as a bright green line on a phosphor screen, that can be deflected by voltages applied to two additional electrodes.
What is needed to operate the tube?
A variable DC power supply of 2-12 V, a source of high-voltage direct current and two sets of connecting leads, one with banana plugs and one with alligator clips.
How should the tube be handled?
Crookes tubes are highly evacuated glass chambers and are fragile, so they must be handled with great care and mounted in their holders before any connections are made.
What should a quotation request include?
Send the SKU JA-APE-9391, the quantity, any power supplies needed and the delivery destination.
Related products
- Maltese Cross Cathode Ray Tube
- Magnetic Effect Cathode Ray Tube
- Paddle Wheel Cathode Ray Tube
- EHT Power Supply
More Crookes tubes and atomic physics apparatus are listed in Atomic Physics Equipment from JaincoLab, a physics lab equipment manufacturer in India.
Request a quote
To order the Electrostatic Deflection Cathode Ray Tube, send the quantity and delivery destination through the JaincoLab contact page or email [email protected].
