Annotation of /ccfdev/packages/emos-quantumef/ChangeLog

ChangeLog for emos-quantumeff
============================
VERSION 1.0 - 2001-07-19 (DL)
-----------     
        Updated for version 5.1 of SAS to make the SAS arfgen reproduce 
        consistent data with the LUX-supplied response matrices.
        Addedd additional energy anchor points at 0eV and 30keV to aid
        interpolation.
        High energy points are scaled according to a silicon absorption depth
        which was measured at Orsay - now we have a good cross-match to CCD 
        fabrication batch which allows an estimate even for thoise CCDS which 
        were never measured at Orsay.
VERSION 0.6 - 2000-09-6 (DL)
-----------
        Further analysis of fligh tdata at Licester allowed better 
        reconciliation with the analytical QE models. In addition we 
        introduce far more energy data to allow for better interpolation. There
        are still problems around the O edge and below 300eV, so we need to
        understand modifications in RMF to make progress at this point.
        
VERSION 0.5 - 2000-06-23 (DL)
-----------
        The initial flight calibration revealed discrepancies at the O edge
        and the lowest energy reponses. These were attributed mainly to 
        systematic  errors in the monitoring process at the Orsay synchrotron.
        New empirical fits to the data were provided by Leicester, and these 
        have been compared with new SCISIM runs, utilising the best latest 
        electrode structure used in the Leicester analystical QE model fit. A 
        combination of LUX data, and an extension BELOW the Si L edge for the 
        SCISIM data allows a hopefully better fit. In addition I have modified
        the QE's for the outer CCDs of each camera, where there are systematic
        differences in QE at > 5keV. These can be attributed to ddifferences
        in silicon resistivity translating to different depletion depths. The 
        QE data for this at Orsay is equivocal, so I take average trends in
        increased efficiency between 5 and 12keV and allocate a best estimate 
        of increased depletion depth to this, and in return modify the overall
        QE curves as a result. I am suspicious, though that all QE's are 
        GREATER tahn the central CCD, and this may indicate a systematic bias
        in the measurment method at Orsay.

        The new data sets should give good results to about 10% accuracy at 
        worst case small energy scales (eg EXAFS scales at silicon edges etc.)
        
VERSION 0.4 - 2000-05-23 (DL)
-----------
        FIxed error of missing pattern 1 data for CCD5
VERSION 0.3 - 2000-02-23 (DL)
-----------
        FIxed numerical problem in the data files (some values >>1 )
        
Version 0.2 - 2000-02-17 (UL)
-----------
        + fixed minor problem with REGION expression in data files

Version 0.1 - 2000-02-09 (DL)
-----------
        + created by DL
1	dlumb	1.6	ChangeLog for emos-quantumeff
2			============================
3	dlumb	1.7	VERSION 1.0 - 2001-07-19 (DL)
4			-----------
5			Updated for version 5.1 of SAS to make the SAS arfgen reproduce
6			consistent data with the LUX-supplied response matrices.
7			Addedd additional energy anchor points at 0eV and 30keV to aid
8			interpolation.
9			High energy points are scaled according to a silicon absorption depth
10			which was measured at Orsay - now we have a good cross-match to CCD
11			fabrication batch which allows an estimate even for thoise CCDS which
12			were never measured at Orsay.
13	dlumb	1.6	VERSION 0.6 - 2000-09-6 (DL)
14			-----------
15			Further analysis of fligh tdata at Licester allowed better
16			reconciliation with the analytical QE models. In addition we
17			introduce far more energy data to allow for better interpolation. There
18			are still problems around the O edge and below 300eV, so we need to
19			understand modifications in RMF to make progress at this point.
20
21	dlumb	1.5	VERSION 0.5 - 2000-06-23 (DL)
22			-----------
23			The initial flight calibration revealed discrepancies at the O edge
24			and the lowest energy reponses. These were attributed mainly to
25			systematic errors in the monitoring process at the Orsay synchrotron.
26			New empirical fits to the data were provided by Leicester, and these
27			have been compared with new SCISIM runs, utilising the best latest
28			electrode structure used in the Leicester analystical QE model fit. A
29			combination of LUX data, and an extension BELOW the Si L edge for the
30			SCISIM data allows a hopefully better fit. In addition I have modified
31			the QE's for the outer CCDs of each camera, where there are systematic
32			differences in QE at > 5keV. These can be attributed to ddifferences
33			in silicon resistivity translating to different depletion depths. The
34			QE data for this at Orsay is equivocal, so I take average trends in
35			increased efficiency between 5 and 12keV and allocate a best estimate
36			of increased depletion depth to this, and in return modify the overall
37			QE curves as a result. I am suspicious, though that all QE's are
38			GREATER tahn the central CCD, and this may indicate a systematic bias
39			in the measurment method at Orsay.
40
41			The new data sets should give good results to about 10% accuracy at
42			worst case small energy scales (eg EXAFS scales at silicon edges etc.)
43
44	dlumb	1.4	VERSION 0.4 - 2000-05-23 (DL)
45			-----------
46			FIxed error of missing pattern 1 data for CCD5
47	dlumb	1.3	VERSION 0.3 - 2000-02-23 (DL)
48			-----------
49			FIxed numerical problem in the data files (some values >>1 )
50
51	ulammers	1.2	Version 0.2 - 2000-02-17 (UL)
52			-----------
53			+ fixed minor problem with REGION expression in data files
54	ulammers	1.1
55	ulammers	1.2	Version 0.1 - 2000-02-09 (DL)
56	ulammers	1.1	-----------
57			+ created by DL