1. EPIC Calibration & Operations Meeting
Palermo, Italy, 2007 April

2. Calibration Activities – the pn perspective
Part I: from raw data to the calibrated event file
Goals:
correct for spatial energy variations
correct for temporal energy variations
handle charges split over several pixels
discriminate between signal and noise
monitor temporal and spatial properties of CTI, gain, energy scale and energy resolution
provide CCFs and algorithms for direct implementation into SAS

3. Calibration Activities – the pn perspective
Part I: from raw data to the calibrated event file
Goals:
correct for spatial energy variations
correct for temporal energy variations
handle charges split over several pixels
discriminate between signal and noise
monitor temporal and spatial properties of CTI, gain, energy scale and energy resolution
provide CCFs and algorithms for direct implementation into SAS

4. Calibration Activities – the pn perspective
Part I: from raw data to the calibrated event file
Goals:
correct for spatial energy variations
correct for temporal energy variations
handle charges split over several pixels
discriminate between signal and noise
monitor temporal and spatial properties of CTI, gain, energy scale and energy resolution
provide CCFs and algorithms for direct implementation into SAS
gain corrections for individual columns 
CTI corrections for individual columns, as a function of energy, taking trap saturation due to precursors into account 
correction of offset shifts in specific pixels 
trap saturation due to optical / infrared light 
update of noisy pixel list 

5. Calibration Activities – the pn perspective
Part I: from raw data to the calibrated event file
Goals:
correct for spatial energy variations
correct for temporal energy variations
handle charges split over several pixels
discriminate between signal and noise
monitor temporal and spatial properties of CTI, gain, energy scale and energy resolution
provide CCFs and algorithms for direct implementation into SAS
quadrant box temperature 
long-term development 

6. Calibration Activities – the pn perspective
Part I: from raw data to the calibrated event file
Goals:
correct for spatial energy variations
correct for temporal energy variations
handle charges split over several pixels
discriminate between signal and noise
monitor temporal and spatial properties of CTI, gain, energy scale and energy resolution
provide CCFs and algorithms for direct implementation into SAS
pattern recognition and recombination 
check for pattern pile-up 
‘vertical doubles’ 

7. Calibration Activities – the pn perspective
Part I: from raw data to the calibrated event file
Goals:
correct for spatial energy variations
correct for temporal energy variations
handle charges split over several pixels
discriminate between signal and noise
monitor temporal and spatial properties of CTI, gain, energy scale and energy resolution
provide CCFs and algorithms for direct implementation into SAS
reject reemission events 
reject invalid frames 
reject MIPs 
suppress detector noise 

8. Calibration Activities – the pn perspective
Part I: from raw data to the calibrated event file
Goals:
correct for spatial energy variations
correct for temporal energy variations
handle charges split over several pixels
discriminate between signal and noise
monitor temporal and spatial properties of CTI, gain, energy scale and energy resolution
provide CCFs and algorithms for direct implementation into SAS
CTI evolution as expected 
gain changes mainly related to quadrant box temperature 
energy resolution fairly constant 
indications for long-term changes in energy scale, spatially dependent 

9. Calibration Activities – the pn perspective
Part I: from raw data to the calibrated event file
epframes 
epevents 
epreject 
epatplot 
Goals:
correct for spatial energy variations
correct for temporal energy variations
handle charges split over several pixels
discriminate between signal and noise
monitor temporal and spatial properties of CTI, gain, energy scale and energy resolution
provide CCFs and algorithms for direct implementation into SAS
new CCFs for 
long-term changes in energy scale
change CCF for long-term CTI to contain entries for each CCD
quadrant box temperature
replace old (never used) CCF for temperature correction by a new CCF containing 12 gain vs. temperature slopes each for FF, eFF, LW, and 1 for SW
offset corrections: provide master offset maps for all imaging modes
3 * 12 + 1 = 37 additional extensions (64 x 200 pixel maps)

10. Calibration Activities – the pn perspective
Part I: from raw data to the calibrated event file
gain corrections for individual columns
Goals:
correct for spatial energy variations
correct for temporal energy variations
handle charges split over several pixels
discriminate between signal and noise
monitor temporal and spatial properties of CTI, gain, energy scale and energy resolution
provide CCFs and algorithms for direct implementation into SAS
CTI corrections for individual columns, as a function of energy, taking trap saturation due to precursors into account
trap saturation due to optical / infrared light
update of noisy pixel list
correction of offset shifts in specific pixels
new CCFs for
offset corrections: provide master offset maps for all imaging modes
3 * 12 + 1 = 37 additional extensions (64 x 200 pixel maps)

11. offset correction: before
rev 546
rev 553

12. offset correction: after
rev 546
rev 553

13. EPIC-pn detector noise (LW)
residual offset map
rev 546

14. EPIC-pn detector noise (LW)
residual offset map
rev 553

15. EPIC-pn detector noise (LW)
residual offset map
rev 730

16. EPIC-pn detector noise (LW)
residual offset map
rev 790

17. EPIC-pn detector noise (LW)
residual offset map
rev 974

18. residual offset maps
rev 546
rev 790

19. cleaned residual offset maps
rev 546
rev 790

20. 20 adu image, rev 546
no brightening here

21. rev 546 cleaned residual offset map residual offset map
brightening not visible in 20 adu image

22. XMM-CCF-REL-190: test (closed, rev 974, LW)
20-22 adu
rawevents
without master offset map

23. XMM-CCF-REL-190: test (closed, rev 974, LW)
20-22 adu
rawevents
with master offset map

24. XMM-CCF-REL-190: test (closed, rev 974, LW, rawevents, 20-22 adu)
without master offset map with master offset map

25. Median filtered stacked offset maps

26. Median filtered stacked offset maps
eFF

27. Median filtered stacked offset mapsLW

28. Median filtered stacked offset mapsSW

29. Median filtered stacked offset mapsLW
eFF SW

30. Calibration Activities – the pn perspective
Part I: from raw data to the calibrated event file
Goals:
correct for spatial energy variations
correct for temporal energy variations
handle charges split over several pixels
discriminate between signal and noise
monitor temporal and spatial properties of CTI, gain, energy scale and energy resolution
provide CCFs and algorithms for direct implementation into SAS
long-term development
quadrant box temperature
new CCFs for
quadrant box temperature
replace old (never used) CCF for temperature correction by a new CCF containing 12 gain vs. temperature slopes each for FF, eFF, LW, and 1 for SW

31. with 1 adu / 2000 d drop

32. Mn-Kα position [adu] corrected slope: +0.43 adu / C
(in quadrant 0, after 1 adu / 2000 d drop)
Mn-Kα position [adu]
slope: adu / C
Mean quadrant box temperature [C]
(F1576..F1876)

33. Multiply all energies with a factor F:
F = ( 1 - A(t) - B(Tq) ) C
A = 4.24 * 10-7 (t-t0)/[d]
B = 3.65 * 10-4 Tq/[oC]
C =
t0 : 2000-Jan-01
Tq: mean of T(F1576)..T(F1876)

34. standard correction

35. after temperature.. correction

36. standard correction

37. after temperature.. correction

40. +2.0 ± 0.3 adu/C

45. 1E 0102.2-7219, FF rev 065 – 900 12 observations 5 – 31 ks
total exposure: 229 ks
3 free energies
922.1 eV
0.43 adu / Mn-K
574.0 eV
665.7 eV
0.43 adu / Mn-K
0.43 adu / Mn-K
0.43 adu / Mn-K
0.43 adu / Mn-K

46. 1E 0102.2-7219, FF rev 065 – 900 12 observations 5 – 31 ks
total exposure: 229 ks
2 free energies
0.43 adu / Mn-K
0.43 adu / Mn-K

47. 1E 0102.2-7219, LW rev 447 – 981 7 observations 10 – 35 ks
total exposure: 141 ks
3 free energies
922.1 eV
0.43 adu / Mn-K
574.0 eV
665.7 eV
0.43 adu / Mn-K
0.43 adu / Mn-K
0.43 adu / Mn-K
0.43 adu / Mn-K

48. 1E 0102.2-7219, LW rev 447 – 981 7 observations 10 – 35 ks
total exposure: 141 ks
2 free energies
0.43 adu / Mn-K
0.43 adu / Mn-K

49. 1E 0102.2-7219, SW rev 375 – 1165 7 observations 10 – 32 ks
total exposure: 192 ks
3 free energies
922.1 eV
0.43 adu / Mn-K
574.0 eV
665.7 eV
0.43 adu / Mn-K
0.43 adu / Mn-K
0.43 adu / Mn-K
0.43 adu / Mn-K

50. 1E 0102.2-7219, SW rev 375 – 1165 7 observations 10 – 32 ks
total exposure: 192 ks
2 free energies
0.43 adu / Mn-K
0.43 adu / Mn-K

51. 3 observations, 10 – 19 ks, total exposure: 47 ks
N132D, FF
rev 076 – 909
3 observations, 10 – 19 ks, total exposure: 47 ks
0.43 adu / Mn-K
6.7 keV

52. 7 observations, 11 – 26 ks, total exposure: 122 ks
N132D, LW
rev 474 – 958
7 observations, 11 – 26 ks, total exposure: 122 ks
0.43 adu / Mn-K
6.7 keV

53. 15 observations, 7 – 30 ks, total exposure: 293 ks
N132D, SW
rev 083 – 1129
15 observations, 7 – 30 ks, total exposure: 293 ks
0.43 adu / Mn-K
6.7 keV

54. Calibration Activities – the pn perspective
Part I: from raw data to the calibrated event file
Goals:
correct for spatial energy variations
correct for temporal energy variations
handle charges split over several pixels
discriminate between signal and noise
monitor temporal and spatial properties of CTI, gain, energy scale and energy resolution
provide CCFs and algorithms for direct implementation into SAS
long-term development
indications for long-term changes in energy scale, spatially dependent 
new CCF for
long-term changes in energy scale
change CCF for long-term CTI to contain entries for each CCD

55. Charge transfer inefficiency

56. FF Mn-K CTI CCD 1 - 6

57. FF Mn-K CTI CCD

58. eFF Mn-K CTI CCD 1 - 6

59. eFF Mn-K CTI CCD

60. Al-K FF
Mn-K FF
Al-K eFF
Mn-K eFF

61. Mn-K FF
2004

62. Mn-K FF
2007

63. Mn-K FF CTI(t)
2002

64. Mn-K FF CTI(t)
2003

65. Mn-K FF CTI(t)
2004

66. Mn-K FF CTI(t)
2005

67. Mn-K FF CTI(t)
2006

68. Mn-K FF CTI(t)
2007

69. energy resolution

70. FF Mn-K FWHM CCD 1 - 6

71. FF Mn-K FWHM CCD

72. FF Mn-K FWHM quadrant 0

73. eFF Mn-K FWHM quadrant 0

74. FF Al-K FWHM CCD 1 - 6

75. FF Al-K FWHM CCD

76. FF al-K FWHM quadrant 0

77. absoluteenergy scale

78. FF Mn-K Pos CCD 1 - 6

79. FF Mn-K Pos CCD

80. FF Mn-K Pos quadrant 0

81. FF Al-K Pos CCD 1 - 6

82. FF Al-K Pos CCD

83. FF Al-K Pos quadrant 0

84. eFF Mn-K Pos CCD 1 - 6

85. eFF Mn-K Pos CCD

86. eFF mn-K Pos quadrant 0

87. eFF Al-K Pos CCD 1 - 6

88. eFF Al-K Pos CCD

89. eFF al-K Pos quadrant 0

90. Calibration Activities – the pn perspective
Part I: from raw data to the calibrated event file
Goals:
correct for spatial energy variations
correct for temporal energy variations
handle charges split over several pixels
discriminate between signal and noise
monitor temporal and spatial properties of CTI, gain, energy scale and energy resolution
provide CCFs and algorithms for direct implementation into SAS
reject reemission events 
reject invalid frames 
reject MIPs 
suppress detector noise 

91. SNR 1E 0102, rev 803, LW, thick, 30 ks Oct 2006 singles, 120-140 eV
unfiltered data
after noisy frame removal
after (spatially variable) noise suppression

92. SNR 1E 0102, rev 803, LW, thick, 30 ks, source regions included
Oct 2006
original spectrum, including source regions, before/after noisy frame removal and (spatially homogeneous) noise suppression

93. SNR 1E 0102, rev 803, LW, thick, 30 ks
Oct 2006
after spatially uniform noise suppression singles, 26 adu after spatially variable noise suppression

94. SNR 1E 0102, rev 803, LW, thick, 30 ks, source regions included
Oct 2006
original spectrum, including source regions, before/after noisy frame removal and spatially uniform noise suppression

95. SNR 1E 0102, rev 803, LW, thick, 30 ks, source regions included
Oct 2006
original spectrum, including source regions, after noisy frame removal and spatially variable noise suppression

96. SNR 1E 0102, rev 803, LW, thick, 30 ks
Dec 2006
source regions excluded
original spectrum after noisy frame removal and improved spatially variable noise suppression

97. SNR 1E 0102, rev 803, LW, thick, 30 ks Oct 2006 singles, 120-140 eV
unfiltered data
after noisy frame removal
after (spatially variable) noise suppression

98. Noise suppression in FF
Dec 2006
23 adu adu
before noise suppression

99. Noise suppression in FF
Dec 2006
23 adu adu
after noise suppression

100. Noise suppression in FF
Dec 2006
23 adu adu
removed noise

101. Noise suppression in FF
Dec 2006
23 adu adu
before noise suppression