Statistics – Applications
Scientific paper
Feb 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993spie.1736..106t&link_type=abstract
Proc. SPIE Vol. 1736, p. 106-116, X-Ray Detector Physics and Applications, Richard B. Hoover; Ed.
Statistics
Applications
Scientific paper
We have developed a moveable, multi-anode, electron-induced x-ray source for calibrating x-ray imaging detector systems. The source features four water-cooled, copper-based anodes that are easily replaced and interchangeable under vacuum. A spherically symmetric filament and anode configuration yields very symmetrical source spot sizes variable from 1 to 5 mm diam. The source is coupled to vacuum by means of a triple-axis translator with x and z motions computer controlled to better than +/- 13 micrometers step accuracy. Absolute source flux is continuously monitored with a proportional counter. We characterize the source spot in detail by aiming the anode towards a pin-hole imaging x-ray detector system. To date we have used Co, Fe, Mg, and Ge vapor-deposited on copper anodes. When filtered with Ni or Mg foils, these emitting materials provide sets of four moderately pure x-ray lines below 1.5 keV. High deposition purity as well as 1E-7 torr source chamber pressures help reduce source degradation. Source translation and data acquisition are computer controlled using a Macintosh/LabVIEW software system. We discuss the application of our source configuration to spatial calibrations of extended pinhole and slit imaging detector systems. In addition, our multi-anode capability is useful for calibrating x-ray spectrograph response versus wavelength.
Bowers Mark W.
Elsholz Allen J.
Randolph John E.
Tirsell Kenneth G.
No associations
LandOfFree
Novel, movable, multianode x-ray source for imaging detector calibrations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Novel, movable, multianode x-ray source for imaging detector calibrations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Novel, movable, multianode x-ray source for imaging detector calibrations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1277238