Measurements

The XRCF energy scale and spectral resolution results presented here have been based on phase I telemetry data.

XRCF phase I was performed with the ACIS flight instrument, but without the High Resolution Mirror Assembly or the gratings. The full ACIS focal plane was illuminated with X-rays from either the Electron-Impact Point Source or the Double Crystal Monochrometer.

During XRCF phase I, the detector electronics temperature was $13 \mbox{$^{\circ}$}$ C and the focal plane temperature was $-110 \mbox{$^{\circ}$}$ C.

ACIS was run in the full frame timed exposure mode, with a 3.34 second exposure time. During most science runs, six of the CCDs were read out simultaneously. A single science run included a number of TRW IDs, and in a few cases multiple energies as well. Subarrays of various sizes were used to avoid telemetry saturation.

Table 4.4 describes each of the science runs used in this section.

 

Science Run Source Energy (eV) FI Window (rows) BI Window (rows) CCDs TRW IDs

69 EIPS O-K 525 500 156 s0 s2 s4-5

70 EIPS O-K 525 250 78 s0-5 I-IAS-EA-2.001 - 2.006

71 EIPS O-K 525 250 78 i0-3 s2-3 I-IAI-EA-1.001 - 1.004

72 EIPS Si-K 1740 56 50 s0 s2 s4-5 I-IAS-EA-2.013 - 2.018

75 EIPS Si-K 1740 56 50 i0-3 s2 I-IAI-EA-1.009 - 1.012

77 EIPS Fe-K 6399 46 46 i0-3 s3

78 EIPS Fe-K 6399 46 46 i0-1 i3 s3 I-IAI-EA-1.025 - 1.028

83 EIPS Fe-K 6399 46 46 i0-2 s2-3 I-IAI-EA-1.028

84 EIPS Fe-K 6399 46 46 s0-5 I-IAS-EA-2.037 - 2.042

91 EIPS Cu-K 8040 30 30 i0-3 s2-3 I-BND-BU-2.004

92 EIPS Cu-K 8040 20 30 i0-3 s2-3 I-IAI-EA-1.029 - 1.032

93 EIPS Cu-K 8040 20 30 s0-5 I-IAS-EA-2.043 - 2.048

96 EIPS C-K 277 1024 512 s0-5 I-BND-BU-2.037

97 EIPS C-K 277 512 1024 s0-5 I-IAS-EA-2.049 - 2.050

100 EIPS Ti-K 4509 28 24 s0-5 I-IAS-EA-2.032, 2.034

104 EIPS Ti-K 4509 28 24 i0-3 s2-3 I-IAI-EA-1.024

111 EIPS Al-K 1487 24 20 s0-5 I-IAS-EA-2.029 - 2.031

112 EIPS Al-K 1487 24 20 i0-3 s2-3 I-IAI-EA-1.017 - 1.020

114 EIPS Si-K 1740 28 26 i0-3 s2 I-IAI-EA-5.003 - 5.004

115 EIPS O-K 525 250 78 i0-3 s2-3 I-IAI-EA-5.001 - 5.002

116 EIPS O-K 525 250 78 s0-5 I-IAS-EA-2.101 - 2.106

117 EIPS O-K 525 250 78 i0-3 s2-3 I-IAI-EA-1.101 - 1.104

120 EIPS Ti-K 4509 28 24 s0-5 I-IAS-EA-2.131 - 2.132, 2.134

122 EIPS Ti-K 4509 28 24 s0-5 I-IAS-EA-2.133, 2.135 - 2.136

123 EIPS Ti-K 4509 28 24 i0-3 s2-3 I-IAI-EA-1.121 - 1.124

128 DCM 1380 1024 1024 i3 s1 s3 I-IAI-EA-1.204 - 1.206

131 DCM 1770 512 512 i3 s1 s3 I-IAI-EA-1.213 - 1.215

132 DCM 4500 1024 1024 i3 s1 s3 I-IAI-EA-1.222 - 1.224

149 DCM 2035 1024 1024 i0-3 s2-3 I-IAI-EA-1.225