American Scientific, LLC · Columbus, Ohio · Exclusive U.S. Distributor of PHYWE Systems
American Scientific, LLC · Columbus, Ohio · Exclusive U.S. Distributor of PHYWE Systems
A glowing, clearly visible electron beam and a precise e/m measurement, even in a lit room.
Benefits Neon-filled narrow beam tube for perfect visibility of the electron beam High-precise and easy to perform measurements with the built-in fluorescent ladder construction Suitable for demonstration and lab courses as well Large Helmholtz coils to generate a large volume homogeneous magnetic field. Can be used in a lot of different experiments The observation chamber allows to perform the experiment in spite of daylight Learning objectives Cathode rays Lorentz force Electron in crossed fields Electron mass Electron charge Principle Electrons are accelerated in an electric field and enter a magnetic field at right angles to the direction of motion. The specific charge of the electron is determined from the accelerating voltage, the magnetic field strength and the radius of the electron orbit. Tasks Determination of the specific charge of the electron (e/m0) from the path of an electron beam in crossed electric and magnetic fields of variable strength.
All units adapted for 110V/60Hz. Contact us for volume pricing and grant assistance.
Adjust the accelerating voltage and coil current. The electron beam's circle grows or shrinks exactly as e/m predicts.
Bring this to your lab →Electrons are accelerated through a known voltage and enter a uniform magnetic field at right angles.
The beam traces a glowing circle; the built-in fluorescent ladder lets students read its radius precisely.
Relating radius, voltage and field strength gives the specific charge of the electron.
Typical student results: beam radius squared grows linearly with accelerating voltage at constant field (illustrative).
Yes. Units supplied through American Scientific are adapted for 110V/60Hz and supported in the U.S., including warranty and replacement parts.
Tell us about your lab in the form above and we'll put together a complete, ready-to-teach configuration, so nothing is missing on day one.
Often, yes. Many institutions fund PHYWE equipment through NSF, Title IV and CTE programs, and our team can help you find and apply for the right opportunity.
