Material Breakdown Due to Electron Beam

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SUMMARY

The discussion focuses on calculating the rate of material breakdown in Titanium when subjected to a 120 keV electron beam. Key parameters include an electron flux of 8.75e16 electrons per second, a Titanium density of 4.506 g/cm³, and a thickness of 0.0254 cm. The user seeks a formula for the attenuation coefficient of electrons based on the atomic number (Z) of the absorber, as well as the average energy deposited per electron or per second. The NIST ESTAR database is referenced for relevant data.

PREREQUISITES
  • Understanding of electron beam physics
  • Familiarity with attenuation coefficients
  • Knowledge of energy deposition calculations
  • Basic principles of material science, specifically regarding Titanium
NEXT STEPS
  • Research the formula for the attenuation coefficient of electrons in materials
  • Explore the NIST ESTAR database for energy deposition data
  • Learn about the relationship between electron energy and material thickness
  • Investigate methods for calculating average energy deposition per second in materials
USEFUL FOR

Physicists, materials scientists, and engineers working with electron beams and material interactions, particularly those focused on the effects of high-energy electrons on Titanium.

ajhunte
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The problem asks me to determine the rate of breakdown due to firing 120 kev Electrons at Titanium of arbitrary thickness. I could solve this problem if I knew The average energy deposited per electron, or the Energy efficiency of the entire beam through the titanium.

Given:
Electron Flux (Current)=8.75e16 Electrons per second
Energy of Electrons= 120 keV per Electron
Density of Titanium= 4.506 g per cm^3
Thickness of Titanium= .0254 cm
Surface area of Titanium= 100 cm^2

Is there a formula that accurately describes the attenuation coefficient of electrons (or beta particles) based on the Z (# of protons) of the absorber. I am interested in the average energy deposited per electron or average energy deposited per second.
 
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You may find this useful:

http://physics.nist.gov/PhysRefData/Star/Text/ESTAR.html"
 
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