Magnifying Lenses with Weak Achromatic Bends for High-Energy Electron Radiography

Technical Report · Fri Feb 27 00:00:00 EST 2015

DOI:https://doi.org/10.2172/1172315· OSTI ID:1172315

Walstrom, Peter Lowell ^[1]

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1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

This memo briefly describes bremsstrahlung background effects in GeV-range electron radiography systems and the use of weak bending magnets to deflect the image to the side of the forward bremsstrahlung spot to reduce background. The image deflection introduces first-order chromatic image blur due to dispersion. Two approaches to eliminating the dispersion effect to first order by use of magnifying lens with achromatic bends are described. Also, higher-order image blur terms caused by weak bends are also discussed, and shown to be negligibly small in most cases of interest.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC52-06NA25396
• OSTI ID: 1172315
• Report Number(s): LA-UR-15-21476
• Country of Publication: United States
• Language: English

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