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X-Ray Absorption Imaging of High-Intensity Discharge Lamps Using an X-Ray Tube Source

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2 Author(s)
John J. Curry ; Phys. Lab., Nat. Inst. of Stand. & Technol., Gaithersburg, MD ; Bruno Lafitte

A table-top system for implementing X-ray absorption imaging measurements of the Hg vapor in high-intensity discharge (HID) lamps is described. The system is based on a commercial X-ray tube source and an optical charge-coupled device array detector, with conversion of X-rays to optical photons by a phosphor. The sensitivity of the system is measured and found to exceed what has been obtained previously with synchrotron-produced X-rays. Hg column densities are measured in an HID lamp with a precision of 7 times 1016 cm-2.

Published in:

IEEE Transactions on Plasma Science  (Volume:36 ,  Issue: 1 )