Документ взят из кэша поисковой машины. Адрес оригинального документа : http://xmm.vilspa.esa.es/docs/documents/CAL-SRN-0123-1-1.ps.gz
Дата изменения: Mon Jan 20 12:57:28 2003
Дата индексирования: Mon Oct 1 22:14:48 2012
Кодировка:
Поисковые слова: южная атлантическая аномалия

XMM-Newton CCF Release Note
XMM-CCF-REL-123
Export of parameters from calpnalgo-2.38 to the EPN CTI.CCF
M. Kirsch
September 23, 2002
1 CCF components
Name of CCF VALDATE List of Blocks
changed
CAL VERSION XSCS ag
EPN CTI 0009 2000-01-01T00:00:00 CTI-HIGH not applicable NO
EPN CTI 0009 2000-01-01T00:00:00 CTI-
HIGH ADD PAR
3.151 NO
EPN CTI 0009 2000-01-01T00:00:00 CCD OFFSETS 3.151 NO
EPN CTI 0009 2000-01-01T00:00:00 TEMP CTI 3.151 NO
EPN CTI 0009 2000-01-01T00:00:00 ORSAY GAIN 3.151 NO
EPN CTI 0009 2000-01-01T00:00:00 LONG TERM CTI 3.151 NO
EPN CTI 0009 2000-01-01T00:00:00 TIMING GAIN 3.151 NO
EPN CTI 0009 2000-01-01T00:00:00 BURST GAIN 3.151 NO
2 Changes
Some parameters from calpnalgo-2.38 have been extracted to new extensions in the EPN CTI 0009.CCF.
This new CTI-CCF requires a change in the CAL. It can only be used with cal-3.146 and calpnalgo-
2.39 and later. This interface change was completed with cal-3.151 and calpnalgo-2.41.
2.1 CTI-HIGH
The attribute KEVPER E = 3.7210 3 [keV/e] keV per released electron has been added
to the header. It gives the necessary energy value to generate one electron.
1

XMM-Newton CCF Release XMM-CCF-REL-123 Page: 2
2.2 CTI-HIGH ADD PAR
This new extension contains ve vectors columns.
Y SHIFT: This vector has only an entry for SW and LW mode correlated to the number of
fast shifts to the read out node.
SCALE: This vector has only an entry for Timing mode. The value is used to adapt the Full
Frame CTI-model to the Timing mode, related to the special read out in Timing Mode.
MODE FACTOR: This vector has only an entry for SW and LW mode correlated to the
special readout in those modes.
EFF PAR: Parameters for special CTI-correction in the Extended Full Frame Mode
LWSW PAR: Parameters for a fudge function to tune the CTI correction in Small Window
and Large Window Mode.
2.3 CCD OFFSETS:
Osets for the Amplication of each CCD. (These parameters are currently not in use).
2.4 TEMP CTI:
Parameters to account for possible temperature variations of the electronic boxes (These parameters
are currently not in use).
2.5 ORSAY GAIN:
Parameters to account for the dierent operational parameter during the Orsay ground calibration.
2.6 LONG TERM CTI:
Parameters to correct the long term eects, that are not modeled with the standard CTI-model.
2.7 TIMING GAIN:
Parameters for a tuning function to take the dierent amplication in Full Frame and Timing mode
into account.

XMM-Newton CCF Release XMM-CCF-REL-123 Page: 3
2.8 BURST GAIN:
Parameters for a tuning function to take the dierent amplication and CTI in Full Frame and
Burst mode into account.
3 Scientic Impact of this Update
None.
4 Estimated Scientic Quality
5 Test procedures & results
5.1 Choose of two SAS versions
The new CCF was tested comparing the results using the following versions of SAS (releasetrack =
RT, developmenttrack = DT):
RT = [xmmsas_20020807_1702-5.3.x-rt]
epevents-8.32
calpnalgo-2.36
cal-3.138.4
EPN_CTI_0008.CCF
DT = [xmmsas_20020812_1701]
epevents-8.33 (only SAS-parameter-interface new related to DT)
calpnalgo-2.39
cal-3.148
EPN_CTI_0009.CCF
5.2 Choose representative test datasets
The below datasets have been choosen for the test:
FF 0075 0124110101 PNS001 [Mkn 205] CCD 4 + CCD 12
eFF 0075 0124110101 PNS003 [Mkn 205] CCD 4 + CCD 12
LW 0075 0124110101 PNS002 [Mkn 205] CCD 4 + CCD 12

XMM-Newton CCF Release XMM-CCF-REL-123 Page: 4
SW 0462 0155150101 PNS003 [AB Dor]
TI 0462 0155150101 PNS014 [AB Dor]
BU 0462 0155150101 PNS015 [AB Dor]
SW 0216 0098610201 PNS003 [4U 1624-49]
TI 0228 0111230101 PNS003 [X1822-371]
BU 0323 0136140301 PNS001 [XTE J1650-500]
5.3 Create CIF les according to the two SAS versions
CIF les for both SAS versions have been created:
RT : CCFPATH = willbepublic+public
DT : CCFPATH = devel+willbepublic+public
5.4 Create raw event les in RT
Raw event les have been created with epframes + badpixnd + badpix as input for epevents
5.5 Create event les in RT und DT
Event les have been created for the RT and DT with the correlated CCF using epevents
5.6 Comparison of results
The column of the corrected energies (PI) of the DT event les has been copied in the RT event
le. After that the energy dierence of both versions was compared for each event. The two
energies turned out to be completely identical for all instrument modes: the histogram of the energy
dierences is a delta function at E = 0 eV. One such example (0228 0111230101 PNS003) is shown
in the gure.
6 Expected Updates
No further update is expected.

XMM-Newton CCF Release XMM-CCF-REL-123 Page: 5