Dual Beam Tube D Manufacturer,Supplier and Exporter in India
Product Code : EL-AANP-10621
Quick Answer: The Dual Beam Tube D is a semi-evacuated electron tube filled with low-pressure helium, with a tangential and an axial electron gun, used to find the specific charge of the electron.
Last updated: October 2026
Key Features
- Semi-evacuated tube filled with low-pressure helium
- Tangential and axial electron guns
- Charge-to-mass ratio found from the diameter of the beam pattern in a perpendicular magnetic field
- Axial beam with a co-axial field shows impact excitation and particle collisions
- Supplied as the tube only, with instructions
Technical Specifications
| Specification | Value |
|---|---|
| Max. anode voltage | 300 V DC |
| Max. filament voltage | 7.5 V |
| Anode current | Approx. 30 mA at 200 V anode |
| Max. deflection voltage | 50 V DC |
| Gas filling | Low-pressure helium |
| Electron guns | Tangential and axial |
About This Product
With tangential bombardment and a magnetic field aligned perpendicular to the beam, the electron charge-to-mass ratio, or specific charge of the electron, is worked out from the diameter of the observed beam pattern. With axial bombardment and a co-axial field, the fine luminescent beams from excited helium atoms are used to study kinetic gas theory, such as impact excitation, and particle collisions. The product includes the tube only, together with instructions. Beyond India, the Dual Beam Tube D is available for export to United States, Suriname, Argentina, Syria and Seychelles.
Frequently Asked Questions
How is the charge-to-mass ratio found with the Dual Beam Tube D?
With tangential bombardment and a perpendicularly aligned magnetic field, it is determined from the diameter of the observed beam pattern.
Is a power supply included?
The product includes the tube only, with instructions.
Related: Atomic and Nuclear Physics, Geiger Muller Tube Holder and Electron Diffraction Tube D.
For a quotation on the Dual Beam Tube D, contact Didactic Lab.
