AXAF Project Science: EIPS Catalog

There is a programming error in the calculations of "line purity". The error affects any targets with more than one line; the more lines the worse the error. The plots and tables for "line purity" from the online catalog should not be used until corrections have been made.

• The tables (ASCII) and plots (GIF) of spectra are arranged in sets of voltages that are multiples of the K or L edge energies.
• Plots of unfiltered spectra are available where the spectra from all voltages are overlapped (plot1) or appear on separate plots (plot2). The plots of filtered spectra are overlapped.
• Line purity results give the line fraction (number of counts in the line to that in the 0.1 - 10.0 keV band) and the detected photon energy dispersion.

Target: Sn, Z=50

Set 1: L-edge group, unfiltered.

Target Voltages (kV):       7.858    11.787    15.716    19.645

PEIS Source Model:
table
plot1
plot2

At Focal Plane:
table
plot1
plot2

ACIS, Backside-Illuminated:
table
plot1
plot2

ACIS, Frontside-Illuminated:
table
plot1
plot2

HRC, CsI MCP + UV shield:
table
plot1
plot2

Set 2: L-edge group, Sn filter.

Target Voltages (kV):       7.858    11.787    15.716    19.645
Filter Thickness (micron):  0         3.17      6.34     12.7    19.    25.4    31.7

PEIS Source Model (filtered):
table
plot

At Focal Plane:
table
plot   line purity -
table
plot (La2)
plot (La1)
plot (Lb1)
plot (Lb4)

ACIS, Backside-Illuminated:
table
plot   line purity -
table
plot (La2)
plot (La1)
plot (Lb1)
plot (Lb4)

ACIS, Frontside-Illuminated:
table
plot   line purity -
table
plot (La2)
plot (La1)
plot (Lb1)
plot (Lb4)

HRC, CsI MCP + UV shield:
table
plot   line purity -
table
plot (La2)
plot (La1)
plot (Lb1)
plot (Lb4)

Editor: Dr. Douglas Swartz System Administrator: Mr. Bob Dean Privacy Policy and Important Notices Accessibility Statement