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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
Spatial variation of the energy scale
Energy correction for pixels with an incorrect value in the offset map
Investigation of additional spatial offsets
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 332 59 ks calclosed
20 adu image
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 332 59 ks calclosed
20 adu image: localizing bright pixels
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 332 59 ks calclosed
E = 5.908 +/- 0.0004 keV
20 adu image: bright pixels
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 332 59 ks calclosed
20 adu image: bright pixels shifted
E = 5.896 +/- 0.0004 keV
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 332 59 ks calclosed
Energy shifts and 20 adu brightness
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 332 59 ks calclosed
20 adu image: intensity classes
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 332 59 ks calclosed
Low intensity
Energy shifts and 20 adu brightness
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 332 59 ks calclosed
High intensity
Energy shifts and 20 adu brightness
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 332 59 ks calclosed
Very high intensity
Energy shifts and 20 adu brightness
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 332 59 ks calclosed
Energy shifts and 20 adu brightness
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 332 59 ks calclosed
20 adu image
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 332 59 ks calclosed
20 adu image, after energy correction
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 344 75 ks
20 adu image, normalized to 1 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 349 36 ks
20 adu image, normalized to 1 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 522 90 ks
20 adu image, normalized to 1 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 523 76 ks
20 adu image, normalized to 1 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 525 82 ks
20 adu image, normalized to 1 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 526 93 ks
20 adu image, normalized to 1 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 527 100 ks
20 adu image, normalized to 1 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 528 82 ks
20 adu image, normalized to 1 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 544 121 ks
20 adu image, normalized to 1 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 548 89 ks
20 adu image, normalized to 1 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
Median image of norm. 20 adu images
rev 548 89 ks
rev 344 75 ksrev 349 36 ks rev 522 90 ksrev 523 76 ks
rev 544 121 ks rev 528 82 ks
rev 526 93 ks rev 525 82 ks
rev 527 100 ks
844 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
Median image of norm. 20 adu images
rev 548 89 ks
rev 344 75 ksrev 349 36 ks rev 522 90 ksrev 523 76 ks
rev 544 121 ks rev 528 82 ks
rev 526 93 ks rev 525 82 ks
rev 527 100 ks
844 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 344 75 ks
20 adu image, normalized to 1 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 344 75 ks
20 adu image – median, normalized
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 349 36 ks
20 adu image – median, normalized
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 522 90 ks
20 adu image – median, normalized
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 522 90 ks
offset map (filtered)
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 523 76 ks
20 adu image – median, normalized
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
offset map (filtered)
rev 523 76 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 525 82 ks
20 adu image – median, normalized
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
offset map (filtered)
rev 525 82 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 526 93 ks
20 adu image – median, normalized
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
offset map (filtered)
rev 526 93 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 527 100 ks
20 adu image – median, normalized
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
offset map (filtered)
rev 527 100 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 528 82 ks
20 adu image – median, normalized
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
offset map (filtered)
rev 528 82 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
rev 544 121 ks
20 adu image – median, normalized
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
offset map (filtered)
rev 544 121 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
Correlation between pixel contents
rev 522 90 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
Correlation between pixel contents
rev 523 76 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
Correlation between pixel contents
rev 525 82 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
Correlation between pixel contents
rev 526 93 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
Correlation between pixel contents
rev 527 100 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
Correlation between pixel contents
rev 528 82 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
Correlation between pixel contents
rev 544 121 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
Correlation between pixel contents
rev 544 121 ks
rev 522 90 ksrev 523 76 ks rev 525 82 ks rev 526 93 ks rev 527 100 ks rev 528 82 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
Correlation between pixel contents
rev 544 121 ks
rev 522 90 ksrev 523 76 ks rev 525 82 ks rev 526 93 ks rev 527 100 ks rev 528 82 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
Correlation between pixel contents
rev 544 121 ks
rev 522 90 ksrev 523 76 ks rev 525 82 ks rev 526 93 ks rev 527 100 ks rev 528 82 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
Correlation between pixel contents
rev 544 121 ks
rev 522 90 ksrev 523 76 ks rev 525 82 ks rev 526 93 ks rev 527 100 ks rev 528 82 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
Correlation between pixel contents
rev 544 121 ks
rev 522 90 ksrev 523 76 ks rev 525 82 ks rev 526 93 ks rev 527 100 ks rev 528 82 ks
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
Correlation between pixel contents
rev 544 121 ks
rev 522 90 ksrev 523 76 ks rev 525 82 ks rev 526 93 ks rev 527 100 ks rev 528 82 ks
![Page 56: EPIC Calibration Meeting, K. Dennerl Saclay/France, 2003 Sept 24-25 offset map correction Spatial variation of the energy scale Energy correction for pixels](https://reader037.vdocuments.mx/reader037/viewer/2022110207/56649d415503460f94a1c8f2/html5/thumbnails/56.jpg)
Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
Values for energy correction
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
Values for energy correction
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
Values for energy correction
![Page 59: EPIC Calibration Meeting, K. Dennerl Saclay/France, 2003 Sept 24-25 offset map correction Spatial variation of the energy scale Energy correction for pixels](https://reader037.vdocuments.mx/reader037/viewer/2022110207/56649d415503460f94a1c8f2/html5/thumbnails/59.jpg)
Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
Values for energy correction
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
Values for energy correction
add: if:
Q 0 Q 1 Q 2 Q 3
- 2 adu -0.09 -0.07
-0.12 –0.04
-0.50 –0.19
-0.12 –0.17
- 1 adu -0.07 –0.02
-0.04 –0.01
-0.19 –0.07
-0.17 –0.06
+ 1 adu 0.05 - 0.21
0.03 – 0.13
0.11 – 0.49
0.12 – 0.46
+ 2 adu 0.21 - 0.61
0.13 – 0.36
0.49 – 1.34
0.46 – 1.24
+ 3 adu 0.61 – 1.24
0.36 – 0.68
1.34 – 2.65
1.24 – 2.30
+ 4 adu 1.24 – 2.27
0.68 – 1.38
2.65 – 4.00
2.30 – 2.46
+ 5 adu 2.27 – 4.00
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Saclay/France, 2003 Sept 24-25offset map correctionEPIC Calibration Meeting, K. Dennerl
Recipe for energy correction
If (residual) offset map is available: - take energy shifts directly from it
Otherwise: - compute 20 adu image from all raw events - subtract median filtered reference map - read correction values from reference table (CCD 6 may require a special treatment)
Note: subsequent cleaning for events >= 20 adu may be appropriate