XRCF Point Spread Function Analysis
A. Ware, B.R. McNamara
Comments to email@example.com
Last updated April 30, 1999
HOW TO USE THESE PAGES
Many of the images on these pages are "clickable
imagemaps". What this means is that you can move your mouse
pointer over an image and see information about it appearing in the
status bar at the bottom of your browser window. You can also click
on the image to jump to related information.|
Try it with the schematic shown here!
A schematic of the ACIS focal plane as seen by
(NOT TO SCALE)
regarding the PSF analysis:
HTML format /
- Pileup fractions: Includes photon and
event pileup fractions for both on- and off-axis tests.
- PSF shapes: One-pixel-wide slices
through the brightest pixel of each image, with gaussian fits to
the resulting plots. For each on-axis test, this table provides:
the peak counts, the integrated and analytically calculated areas
under the gaussian, and the FWHM of the gaussian.
- Off-axis spectra: The width (sigma) of
each Gaussian fit to the peaks in all off-axis pulse height spectra.
Back to the ACIS Calibration Page