Table 8: HRMA/ACIS
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Test Name, Description and Accuracy Requirement (  1 
)
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Justification
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Off-axis angles
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T, °C
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Energy Sampling Interval ( E)
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Estimated Integration Time
|
Detector
|
6
6.1 Focus Test
|
|
2 chips, five focus settings
|
|
on-axis
|
nominal
|
4 energies
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6.1.1
flapper, 2 hrs
|
ACIS-I, BND(FPCs, SSS), FMS
|
|
Repeat for ACIS-G
|
|
|
|
|
6.1.2
2 hrs
|
ACIS-G, BND(FPCs, SSS), FMS
|
|
|
|
|
|
|
Subtotal = 4 hrs
|
|
6.2 Effective Area Confirmation
|
|
Accuracy: 1% of peak intensity
Accumulate images. Several per chip are required, because of ACIS counting rate limits. Also, there are four chips. Four subarray readout modes, covering 4 arcsec, 11 arcsec, 55 arcsec and 4 arcmin will be used to permit acquisition of data at as high counting rates as possible in the inner part of the PRF. See ACIS description for details.
|
source fluxes and spectra
|
on-axis
|
Temp1 (nominal)
|
11 energies (see
Table 15).
|
6.2.1
(200+1000
+1000+1000)x11 = 9.8 hr
|
ACIS-I plus occulting disc, BND(FPCs, SSS), FMS
|
|
Set1 (12).
|
Temp1 (nominal)
|
6 energies: C K, Cu L, Al K, Cr K , Fe K, Ge K
|
6.2.2
3200x6x11 = 59 hr
|
|
Repeat for ACIS-G
|
|
|
|
|
68.8 hrs
|
ACIS-G plus occulting disc, BND(FPCs, SSS), FMS
|
|
|
|
|
|
|
Subtotal: 137.6 hr
|
|
6.3 ACIS PSF & PSF-Wing Calibration
|
|
2% of the measured value in 0.5 arcsec cells within 16 arcsec of image center, and 5% of the measured value in 5 x 5 arcsec cells within 20 arcsec of the image center. Exposures at 3 different frame readout configurations.
|
Source structure and detection of extended emission around point sources up to 0.01 Crab.
|
on-axis
|
Temp1, nominal
|
10 energies:B K, C K, Cr L, Cu L, Al K, Ag L, Ti K, Cr K, Fe K, Ge K
|
6.3.1
2000x3x10+9x900 = 19 hr
|
ACIS, BND(FPCs, SSS), FMS
|
|
Set1 (8)
|
4 energies: Al K, Ti K, Fe K, Ge K
|
6.3.2
[(3200x3x8)+7 x900]x4+3x900 = 93 hr
|
|
Measure the response of the gate structure to the PRF at 9 critical locations in the gate.
|
Prevent artifacts in the images.
|
3x3 locations
|
6.3.3
[(3200x9)+8x900]x4+3x900 = 40.8 hr
|
|
Repeat §6.3.1
through §6.3.3
for ACIS-G
|
|
|
|
|
6.3.4
152.8 hr
|
|
|
|
|
|
|
|
Subtotal: 306 hr
|
|
6.4 Background Data
|
|
Used for Interpreting XRCF Calibrations.
10% accuracy.
|
Needed for HRMA data analysis.
|
N.A.
|
Temp1
|
N.A.
|
6.4.1
10000 = 2.8 hr
|
ACIS-I, BND(FPCs, SSS), FMS
|
6.4.2
2.8 hr
|
ACIS-G, BND(FPCs, SSS), FMS
|
|
|
|
|
|
|
Subtotal: 5.6 hr
|
|
6.5 Survey for strange edges in mirror/ACIS response
|
|
Accuracy: 1% in 1000 resolution elements.
|
Molecular contamination search
|
N.A.
|
Temp1, nominal
|
bremsstrahlung continuum
|
6.5.1
57.6 hr
|
ACIS-I, BND(FPCs, SSS), FMS
|
6.6 Total Integration Time for HRMA/ACIS
|
21.3 days
|
|