EPIC Calibration & Operations Meeting Palermo, Italy, 2007 April 11 - 13

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

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

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 

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 

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’ 

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 

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 

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)

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)

offset correction: before rev 546 rev 553

offset correction: after rev 546 rev 553

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

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

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

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

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

residual offset maps rev 546 rev 790

cleaned residual offset maps rev 546 rev 790

20 adu image, rev 546 no brightening here

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

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

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

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

Median filtered stacked offset maps

Median filtered stacked offset maps eFF

Median filtered stacked offset maps LW

Median filtered stacked offset maps SW

Median filtered stacked offset maps LW eFF SW

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

with 1 adu / 2000 d drop

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

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 = 1.0057 t0 : 2000-Jan-01 Tq: mean of T(F1576)..T(F1876)

standard correction

after temperature.. correction

standard correction

after temperature.. correction

+2.0 ± 0.3 adu/C

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 / C @ Mn-K 574.0 eV 665.7 eV 0.43 adu / C @ Mn-K 0.43 adu / C @ Mn-K 0.43 adu / C @ Mn-K 0.43 adu / C @ Mn-K

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

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 / C @ Mn-K 574.0 eV 665.7 eV 0.43 adu / C @ Mn-K 0.43 adu / C @ Mn-K 0.43 adu / C @ Mn-K 0.43 adu / C @ Mn-K

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

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 / C @ Mn-K 574.0 eV 665.7 eV 0.43 adu / C @ Mn-K 0.43 adu / C @ Mn-K 0.43 adu / C @ Mn-K 0.43 adu / C @ Mn-K

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

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 / C @ Mn-K 6.7 keV

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 / C @ Mn-K 6.7 keV

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 / C @ Mn-K 6.7 keV

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

Charge transfer inefficiency

FF Mn-K CTI CCD 1 - 6

FF Mn-K CTI CCD 7 - 12

eFF Mn-K CTI CCD 1 - 6

eFF Mn-K CTI CCD 7 - 12

Al-K FF Mn-K FF Al-K eFF Mn-K eFF

Mn-K FF 2004

Mn-K FF 2007

Mn-K FF CTI(t) 2002

Mn-K FF CTI(t) 2003

Mn-K FF CTI(t) 2004

Mn-K FF CTI(t) 2005

Mn-K FF CTI(t) 2006

Mn-K FF CTI(t) 2007

energy resolution

FF Mn-K FWHM CCD 1 - 6

FF Mn-K FWHM CCD 7 - 12

FF Mn-K FWHM quadrant 0

eFF Mn-K FWHM quadrant 0

FF Al-K FWHM CCD 1 - 6

FF Al-K FWHM CCD 7 - 12

FF al-K FWHM quadrant 0

absoluteenergy scale

FF Mn-K Pos CCD 1 - 6

FF Mn-K Pos CCD 7 - 12

FF Mn-K Pos quadrant 0

FF Al-K Pos CCD 1 - 6

FF Al-K Pos CCD 7 - 12

FF Al-K Pos quadrant 0

eFF Mn-K Pos CCD 1 - 6

eFF Mn-K Pos CCD 7 - 12

eFF mn-K Pos quadrant 0

eFF Al-K Pos CCD 1 - 6

eFF Al-K Pos CCD 7 - 12

eFF al-K Pos quadrant 0

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 

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

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

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

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

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

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

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

Noise suppression in FF Dec 2006 0 6 0 6 23 adu 26 adu before noise suppression

Noise suppression in FF Dec 2006 0 6 0 6 23 adu 26 adu after noise suppression

Noise suppression in FF Dec 2006 0 6 0 6 23 adu 26 adu removed noise

Noise suppression in FF Dec 2006 0 6 0 6 23 adu 26 adu before noise suppression