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Thomson's e/m Experiment

Thomson's e/m Experiment

In a beam of charged particles created by a heated cathode, the particles move at different speeds. However, many applications need a beam with uniform particle speeds. An arrangement known as a velocity selector uses electric and magnetic fields to pick particles with a particular speed from the beam.
A particle with charge q, speed v, and mass m enters an area from the top, where the magnetic and electric fields are perpendicular both to the particle's motion and to one another. The...

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Related Experiment Video

Updated: Oct 23, 2025

Author Spotlight: A Machine-Vision Approach to Transmission Electron Microscopy Workflows, Results Analysis and Data Management

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Virtual Works for CRT

¹Section of Interventional Cardiology, MedStar Washington Hospital Center.

Cardiovascular Revascularization Medicine : Including Molecular Interventions

|August 22, 2021

Summary

No abstract available in PubMed .

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