EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale Sudden jumps in the absolute energy scale and their origin

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale FF Mn-K Pos Quadrant 0 ± 5 eV

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale Effect of the particle background

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale FF Mn-K Pos Quadrant 0 ± 5 eV 2005 Dec 20 – 2006 Jan eV

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale FF AL-K Pos Quadrant 0 ± 5 eV 2005 Dec 20 – 2006 Jan eV

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale Al-K: keV, eV  % Mn-K: keV, eV  %  Change in the gain, not in the offset

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale Energy resolution somewhat improved during high background  reduced charge loss noise  reduced charge loss  increased trap saturation Energy shift occurs also for first singles  precursors ‘invisible’  precursors below lower threshold or in preceding frame(s) low background high background

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale rev 711, high background Al-K Mn-K Al-K Mn-K The CTI during low and high background rev 709, low background  decreased CTI during high background (Mn-K)

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale low background

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale high background

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale  During episodes of high particle background the CTI is reduced.  This is most likely caused by saturation of traps due to precursors.  The charge of the precursors is below the 20 adu threshold and thus not available.  The usual CTI correction cannot be used.  But there may be a correlation with the background flux which can be used for the correction..

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale Effect of the quadrant box temperature

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale Gain/temperature correlation: earlier investigations

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale Mn-K α & Al-K position and quadrant box temperature

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale Quadrant box temperatures (yellow circles: no FF mode)

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale Mn-K α position vs. temperature: CCD 1 & 2

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale Mn-K α position vs. temperature: CCD 3 & 4

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale Mn-K α position vs. temperature: CCD 5 & 6

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale Mn-K α position vs. temperature: CCD 7 & 8

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale Mn-K α position vs. temperature: CCD 9 & 10

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale Mn-K α position vs. temperature: CCD 11 & 12

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale Mn-K α position vs. Al-K position

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale Deviations of the Al-K and Mn-K α positions

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale Mn-K α position vs. Al-K position

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale Mn-K α positions (after gain and CTI correction)

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale Mn-K α positions after temperature (and dCTI/dt) correction

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale “CCD offsets”

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale Doy 2000 Quadrant box temperatures

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale Standard correction

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale with 1 adu / 2000 d drop

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale with 1 adu / 2000 d drop

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale Mean quadrant box temperature [C] (F1576..F1876) Mn-K α position [adu] (in quadrant 0, after 1 adu / 2000 d drop) slope: adu / C

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale standard correction

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale after temperature.. correction

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale standard correction

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale after temperature.. correction

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale Multiply all energies with a factor F: F = ( 1 - A(t) - B(T q ) ) C A = 4.24 * (t-t 0 )/[d] B = 3.65 * T q /[ o C] C = t 0 : 2000-Jan-01 T q : mean of T(F1576)..T(F1876)

EPIC Calibration Meeting, Mallorca K. Dennerl, 2006 October 26 EPIC pn: Jumps in the energy scale