[Artist's Concept of AXAF-I] AXAF Project Science: EIPS Catalog

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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.


Target: Si, Z=14

Set 1: K-edge group, unfiltered.

Target Voltages (kV):       3.680    5.520    7.360    9.200

PEIS Source Model (filtered):
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, Si filter.

Target Voltages (kV):       3.680    5.520    7.360    9.200
Filter Thickness (micron):  0        12.2    24.5     48.9    73.4    97.8    122.

PEIS Source Model:
table
plot

At Focal Plane:
table
plot
ACIS, Backside-Illuminated:
table
plot   line purity -  K
table
plot
ACIS, Frontside-Illuminated:
table
plot   line purity -  K
table
plot
HRC, CsI MCP + UV shield:
table
plot   line purity -  K
table
plot

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