Weekly Report 19Nov2010 26Nov2010

Pixon Albedo Imaging

Using Eduard Kontar's simulated eventlist files, Pixon Images were created for a compact circular gaussian source with an albedo contribution near disk center, and near the limb. The following parameters were used for each image:

• Time: 2-Sep-2002 00:07:36 - 00:08:16
• Energy 24keV - 51keV
• Detectors 1 to 4
• Image Size: 64 by 64 pixels
• Pixel Size: .5 arcsec by .5 arcsec

The following plots are extensions of the plots from the previous report.

The plot below shows the gaussian model of the compact source (orange),the original data map with the minimum and maximum value at each radial distance (Black), the Pixon image with the minimum and maximum value at each radial distance (Purple), and the clean image with the minimum and maximum value at each radial distance (Cyan)for a source near disk center.

Original Data Map (Black), Pixon Map (Purple), Clean Map (Cyan), Model Gaussian (orange) for a source near the disk center

The plot below shows the gaussian model of the compact source (orange),the original data map with the minimum and maximum value at each radial distance (Black), the Pixon image with the minimum and maximum value at each radial distance (Purple), and the clean image with the minimum and maximum value at each radial distance (Cyan) for a source near the limb.

Original Data Map (Black), Pixon Map (Purple), Clean Map (Cyan), Model Gaussian (orange) for a source near the limb)

The clean profile for an image near disk center (Cyan), and near the limb (Purple), with the minimum and maximum values also shown for each radial distance.

The pixon profile for an image near disk center (Cyan), and near the limb (Purple), with the minimum and maximum values also shown for each radial distance.

RHESSI Image Test - Clean v. Pixon