Determining the radius of curvature mass spectrometre question

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SUMMARY

The discussion focuses on calculating the radius of curvature required for a mass spectrometer to effectively separate carbon monoxide (CO) and nitrogen (N2) molecules, which have nearly identical masses (CO = 28.0106 u, N2 = 28.0134 u). The formula used for this calculation is r = mv/qB, where 'm' is mass, 'v' is velocity, 'q' is charge, and 'B' is the magnetic field strength. The goal is to achieve a separation of at least 0.24 mm on the photographic plate. Additionally, the Lorentz force due to the electric field must be considered for accurate results.

PREREQUISITES
  • Understanding of mass spectrometry principles
  • Familiarity with the Lorentz force equation
  • Knowledge of magnetic fields and their effects on charged particles
  • Basic skills in algebra and physics equations
NEXT STEPS
  • Research the impact of magnetic field strength (B) on mass spectrometer performance
  • Study the Lorentz force and its application in mass spectrometry
  • Explore methods for calculating velocity (v) of ions in a mass spectrometer
  • Learn about the design and optimization of mass spectrometers for air pollution analysis
USEFUL FOR

This discussion is beneficial for physics students, engineers working with mass spectrometry, and environmental scientists focused on air quality assessment.

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Homework Statement


A mass spectrometer is an important tool in the study of air pollution. However, one of the difficulties faced by scientists is that carbon monoxide molecules (CO), which are major contributors to air pollution, have very nearly the same mass as harmless nitrogen molecules (N2). (CO = 28.0106 u, N2 = 28.0134u). Determine how large a radius of curvature a spectrometer needs to have if these two molecules are to be separated on the photographic plate by at least 0.24mm.


Homework Equations


r = mv/qB


The Attempt at a Solution


?
 
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Hello ,
You also need to include force due to electric field .
I mean lorentz force
 

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