/[CCFs]/ccfdev/packages/emos-quantumef/ChangeLog
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Revision 1.18 - (hide annotations)
Tue Jun 3 16:01:13 2003 UTC (21 years, 5 months ago) by rsaxton
Branch: MAIN
CVS Tags: version_1_11
Changes since 1.17: +8 -0 lines
Committed through make

1 dlumb 1.6 ChangeLog for emos-quantumeff
2     ============================
3 rsaxton 1.18 VERSION 1.11 - 2003-06-03 (RDS)
4     -----------
5     Issue 0015
6     Uses realistic channel space pattern fractions for Timing
7     mode (SPR-2422)
8     Includes key-words to describe the ratio of large pattern
9     events (SPR-2421)
10    
11 rsaxton 1.17 VERSION 1.10 - 2002-12-16 (RDS)
12     -----------
13     Issue 0014
14     Set the pattern fractions in channel space more accurately so
15     that they can be used within epatplot
16    
17 rsaxton 1.16 VERSION 1.9 - 2002-11-22 (RDS)
18     -----------
19     Issue 0013
20     Add in pattern fractions for timing and burst modes
21     Add in a CHBINS_FRACTION extension
22    
23 rsaxton 1.15 VERSION 1.8 - 2002-06-28 (RDS)
24     -----------
25     Iss 0012
26     Return to the values in Version 1.6 which are now further
27     substantiated by work by Philippe Marty.
28    
29 dlumb 1.14 VERSION 1.7 - 2002-03-27 (DHL)
30     -----------
31     Iss 0011
32     Seems like that SAS v 5.3 won't go out with the required
33     vignetting
34     corrections so we need a quick fudge to get the MOS2 and MOS1 QE's
35     back into an alignment that temporarily gives reasonable results,
36     while not maintaining the old Leicester QE's with known
37     deficiencies. MOS2 only changed..
38    
39 dlumb 1.13 VERSION 1.6 - 2002-03-07 (DHL)
40     -----------
41     Iss 0011
42     Made an error in adding up only patterns 0:12 into the QE_TOT
43     extensions
44     So this version should now have patterns 0:31
45    
46 dlumb 1.12 VERSION 1.5 - 2002-03-01 (DHL)
47 dlumb 1.13 -----------
48 dlumb 1.12 Iss 0011
49 dlumb 1.13 Fixed the data for the QE, by making the high energy (>1.5keV) points
50     match a detection depth provided on a CCD-CCD case from the Orsay data
51     (see below). At lower energies I just take the existing sets from the
52     Leicester response matrices (q20 versions) and merge into the higher
53     energy data. I note that we are matching a response of 0-12 patterns
54     only, so we do not truly expect the curve to fit a simple Si depth
55     -due to effect of energy thresholds and event splitting, but the Orsay
56     data are a pretty good match. On echange i made was to get a good fit
57     just below the Si K edge & there is put in a depth of 32um for ALL
58     chips
59    
60     Values used were: MOS1, CCD 1-7 25.8,29.6,28.8,25.3,28.4,28.2,27.8
61     MOS2, CCD 1-7 28.0,27.4,26.8,28.8,28.8,26.4,28.2
62     Note that in MOS2 CCDS4&5 were never measured on ground so I took an
63     average value based on other CCDS from the same manufactured batch
64 dlumb 1.12
65 rsaxton 1.11 VERSION 1.4 - 2002-01-30 (RDS)
66     -----------
67     Iss 0010
68    
69     Add in extra units and remove quotes from region string
70    
71 rsaxton 1.10 VERSION 1.3 - 2002-01-24 (RDS)
72     -----------
73     Iss 0010
74    
75     Add in extra pattern fraction tables (SCR-72)
76    
77 dlumb 1.9 VERSION 1.2 - 2002-01-08 (DL)
78     -----------
79     Iss 0009
80    
81     To fix SPR2178 I changed the region descriptor from POLYGON type to
82     BOX type. This not only clears up ambiguity on the borders of the shape
83     but probably speeds up the calculation.
84    
85 dlumb 1.8 VERSION 1.1 - 2001-09-20 (DL)
86     -----------
87     Iss 0008
88    
89     Updated for version 5.2 of SAS. We realise that there was a double
90     accounting of the pattern fractions so that at 10keV (for exampel)
91     the 50% fraction of 0-12 patterns was doubly applied. This led to
92     a gradually decreasing QE with Energy compared with the true expected
93     QE
94    
95 dlumb 1.7 VERSION 1.0 - 2001-07-19 (DL)
96     -----------
97     Updated for version 5.1 of SAS to make the SAS arfgen reproduce
98     consistent data with the LUX-supplied response matrices.
99     Addedd additional energy anchor points at 0eV and 30keV to aid
100     interpolation.
101     High energy points are scaled according to a silicon absorption depth
102     which was measured at Orsay - now we have a good cross-match to CCD
103     fabrication batch which allows an estimate even for thoise CCDS which
104     were never measured at Orsay.
105 dlumb 1.6 VERSION 0.6 - 2000-09-6 (DL)
106     -----------
107     Further analysis of fligh tdata at Licester allowed better
108     reconciliation with the analytical QE models. In addition we
109     introduce far more energy data to allow for better interpolation. There
110     are still problems around the O edge and below 300eV, so we need to
111     understand modifications in RMF to make progress at this point.
112    
113 dlumb 1.5 VERSION 0.5 - 2000-06-23 (DL)
114     -----------
115     The initial flight calibration revealed discrepancies at the O edge
116     and the lowest energy reponses. These were attributed mainly to
117     systematic errors in the monitoring process at the Orsay synchrotron.
118     New empirical fits to the data were provided by Leicester, and these
119     have been compared with new SCISIM runs, utilising the best latest
120     electrode structure used in the Leicester analystical QE model fit. A
121     combination of LUX data, and an extension BELOW the Si L edge for the
122     SCISIM data allows a hopefully better fit. In addition I have modified
123     the QE's for the outer CCDs of each camera, where there are systematic
124     differences in QE at > 5keV. These can be attributed to ddifferences
125     in silicon resistivity translating to different depletion depths. The
126     QE data for this at Orsay is equivocal, so I take average trends in
127     increased efficiency between 5 and 12keV and allocate a best estimate
128     of increased depletion depth to this, and in return modify the overall
129     QE curves as a result. I am suspicious, though that all QE's are
130     GREATER tahn the central CCD, and this may indicate a systematic bias
131     in the measurment method at Orsay.
132    
133     The new data sets should give good results to about 10% accuracy at
134     worst case small energy scales (eg EXAFS scales at silicon edges etc.)
135    
136 dlumb 1.4 VERSION 0.4 - 2000-05-23 (DL)
137     -----------
138     FIxed error of missing pattern 1 data for CCD5
139 dlumb 1.3 VERSION 0.3 - 2000-02-23 (DL)
140     -----------
141     FIxed numerical problem in the data files (some values >>1 )
142    
143 ulammers 1.2 Version 0.2 - 2000-02-17 (UL)
144     -----------
145     + fixed minor problem with REGION expression in data files
146 ulammers 1.1
147 ulammers 1.2 Version 0.1 - 2000-02-09 (DL)
148 ulammers 1.1 -----------
149     + created by DL

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