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: Ti, Z=22

Set 1: K-edge group, unfiltered.

Target Voltages (kV):       5.9592   7.4490   9.932   14.898

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: K-edge group, Ti filter.

Target Voltages (kV):       5.9592   7.4490   9.932   14.898
Filter Thickness (micron):  0       20.3     40.5     81.     122.     162.     203.

PEIS Source Model:
table
plot

At Focal Plane:
table
plot   line purity -
table
plot (Ka2)
plot (Ka1)
plot (Kb)

ACIS, Backside-Illuminated:
table
plot   line purity -
table
plot (Ka2)
plot (Ka1)
plot (Kb)

ACIS, Frontside-Illuminated:
table
plot   line purity -
table
plot (Ka2)
plot (Ka1)
plot (Kb)

HRC, CsI MCP + UV shield:
table
plot   line purity -
table
plot (Ka2)
plot (Ka1)
plot (Kb)

Set 3: L-edge group, unfiltered.

Target Voltages (kV):       0.912   1.368   1.824   2.280

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 4: L-edge group, Ti filter.

Target Voltages (kV):       0.912   1.368   1.824   2.280
Filter Thickness (micron):  0       0.663   1.33    2.66    3.98    5.31    6.64

PEIS Source Model (filtered):
table
plot

At Focal Plane:
table
plot   line purity -
table
plot (La)
plot (Lb)

ACIS, Backside-Illuminated:
table
plot   line purity -
table
plot (La)
plot (Lb)

ACIS, Frontside-Illuminated:
table
plot   line purity -
table
plot (La)
plot (Lb)

HRC, CsI MCP + UV shield:
table
plot   line purity -
table
plot (La)
plot (Lb)

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