Title :
X-Ray Absorption Imaging of High-Intensity Discharge Lamps Using an X-Ray Tube Source
Author :
Curry, John J. ; Lafitte, Bruno
Author_Institution :
Phys. Lab., Nat. Inst. of Stand. & Technol., Gaithersburg, MD
Abstract :
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.
Keywords :
X-ray imaging; X-ray tubes; arcs (electric); charge-coupled devices; discharge lamps; mercury (metal); plasma diagnostics; Hg; Hg column density; Hg vapor; X-ray absorption imaging; X-ray tube source; high-intensity discharge lamps; optical charge-coupled device array detector; phosphor; synchrotron-produced X-rays; table-top system; Electromagnetic wave absorption; Electron tubes; Fault location; High intensity discharge lamps; Mercury (metals); Optical arrays; Optical devices; Optical imaging; Optical sensors; X-ray imaging; Absorption; Hg; X-ray; density; diagnostic; highintensity discharge (HID); imaging; plasma;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2007.914464
