Difference between revisions of "CDC finding signal duration"
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{| border="0" cellpadding="2" | {| border="0" cellpadding="2" | ||
− | |[[Image:run_31810_dadc_30.png|thumb| | + | |[[Image:run_31810_dadc_30.png|thumb|x300px|]] |
− | |[[Image:run_31810_dadc_47.png|thumb| | + | |[[Image:run_31810_dadc_47.png|thumb|x300px|]] |
− | |[[Image:run_31810_dadc_49.png|thumb| | + | |[[Image:run_31810_dadc_49.png|thumb|x300px|]] |
− | |[[Image:run_31810_dadc_50.png|thumb| | + | |[[Image:run_31810_dadc_50.png|thumb|x300px|]] |
− | |[[Image:run_31810_dadc_70.png|thumb| | + | |[[Image:run_31810_dadc_70.png|thumb|x300px|]] |
|} | |} | ||
{| border="0" cellpadding="2" | {| border="0" cellpadding="2" | ||
− | |[[Image:run_31809_dadc_28.png|thumb| | + | |[[Image:run_31809_dadc_28.png|thumb|x300px|]] |
− | |[[Image:run_31809_dadc_29.png|thumb| | + | |[[Image:run_31809_dadc_29.png|thumb|x300px|]] |
− | |[[Image:run_31809_dadc_32.png|thumb| | + | |[[Image:run_31809_dadc_32.png|thumb|x300px|]] |
− | |[[Image:run_31809_dadc_38.png|thumb| | + | |[[Image:run_31809_dadc_38.png|thumb|x300px|]] |
− | |[[Image:run_31809_dadc_94.png|thumb| | + | |[[Image:run_31809_dadc_94.png|thumb|x300px|]] |
+ | |} | ||
+ | Stripes are +/- 1sigma and 2sigma. | ||
+ | |||
+ | Try this: | ||
+ | search backwards from end sample, looking for change in ADC value going below -2sigma (or -1sigma if -2sigma not found, or min value if -1sigma not found), then search forwards until change in ADC value goes +ve. | ||
+ | |||
+ | That gives the following for the above events: (run 31810) 260, 258, 295, 293, 264 and (run 31809) 242, 230, 281, 301, 268 | ||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:run_31809_pklength_track101.png|thumb|x300px|run 31809 (horizontal)]] | ||
+ | |[[Image:run_31810_pklength_track101.png|thumb|x300px|run 31810 (tilted 45deg)]] | ||
+ | |} | ||
+ | |||
+ | Changed this to search for change in ADC value going below -1sigma, or min value if -1sigma not found, then search forwards until change in value goes +ve | ||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:run_31809_pklength_track102.png|thumb|x300px|run 31809 (horizontal)]] | ||
+ | |[[Image:run_31810_pklength_track102.png|thumb|x300px|run 31810 (tilted 45deg)]] | ||
+ | |} | ||
+ | |||
+ | Look at difference between chunks of 2 and 4 samples, summed, stripes are +/- 1, 2, 4, 8, 10sigma. | ||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:run_31810_event_30_dy.png|thumb|x300px|]] | ||
+ | |[[Image:run_31810_event_47_dy.png|thumb|x300px|]] | ||
+ | |[[Image:run_31810_event_49_dy.png|thumb|x300px|]] | ||
+ | |[[Image:run_31810_event_50_dy.png|thumb|x300px|]] | ||
+ | |[[Image:run_31810_event_70_dy.png|thumb|x300px|]] | ||
+ | |} | ||
+ | |||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:run_31809_event_28_dy.png|thumb|x300px|]] | ||
+ | |[[Image:run_31809_event_29_dy.png|thumb|x300px|]] | ||
+ | |[[Image:run_31809_event_32_dy.png|thumb|x300px|]] | ||
+ | |[[Image:run_31809_event_38_dy.png|thumb|x300px|]] | ||
+ | |[[Image:run_31809_event_94_dy.png|thumb|x300px|]] | ||
+ | |} | ||
+ | |||
+ | Peaklength requiring a drop of 10sigma between chunks of 4 samples | ||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:run_31809_pklength_track105.png|thumb|x250px|run 31809 (horizontal)]] | ||
+ | |[[Image:run_31811_pklength_track105.png|thumb|x250px|run 31811 (tilted 30deg)]] | ||
+ | |[[Image:run_31810_pklength_track105.png|thumb|x250px|run 31810 (tilted 45deg)]] | ||
+ | |} | ||
+ | |||
+ | Peaklength requiring a drop of 8sigma between chunks of 4 samples | ||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:run_31809_pklength_track106.png|thumb|x250px|run 31809 (horizontal)]] | ||
+ | |[[Image:run_31811_pklength_track106.png|thumb|x250px|run 31811 (tilted 30deg)]] | ||
+ | |[[Image:run_31810_pklength_track106.png|thumb|x250px|run 31810 (tilted 45deg)]] | ||
+ | |} | ||
+ | |||
+ | Peaklength requiring a drop of 6sigma between chunks of 4 samples | ||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:run_31809_pklength_track107.png|thumb|x250px|run 31809 (horizontal)]] | ||
+ | |[[Image:run_31811_pklength_track107.png|thumb|x250px|run 31811 (tilted 30deg)]] | ||
+ | |[[Image:run_31810_pklength_track107.png|thumb|x250px|run 31810 (tilted 45deg)]] | ||
+ | |} | ||
+ | |||
+ | Look at difference between chunks of 5 and 6 samples, summed, stripes are +/- 1, 5, 10, 15, 20sigma. | ||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:run_31810_event_30_dy3.png|thumb|x350px|]] | ||
+ | |[[Image:run_31810_event_47_dy3.png|thumb|x350px|]] | ||
+ | |[[Image:run_31810_event_49_dy3.png|thumb|x350px|]] | ||
+ | |[[Image:run_31810_event_50_dy3.png|thumb|x350px|]] | ||
+ | |[[Image:run_31810_event_70_dy3.png|thumb|x350px|]] | ||
+ | |} | ||
+ | |||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:run_31809_event_28_dy3.png|thumb|x350px|]] | ||
+ | |[[Image:run_31809_event_29_dy3.png|thumb|x350px|]] | ||
+ | |[[Image:run_31809_event_32_dy3.png|thumb|x350px|]] | ||
+ | |[[Image:run_31809_event_38_dy3.png|thumb|x350px|]] | ||
+ | |[[Image:run_31809_event_94_dy3.png|thumb|x350px|]] | ||
+ | |} | ||
+ | |||
+ | Peaklength requiring a drop of 15sigma between chunks of 5 samples | ||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:run_31809_pklength_track108.png|thumb|x250px|run 31809 (horizontal)]] | ||
+ | |[[Image:run_31811_pklength_track108.png|thumb|x250px|run 31811 (tilted 30deg)]] | ||
+ | |[[Image:run_31810_pklength_track108.png|thumb|x250px|run 31810 (tilted 45deg)]] | ||
+ | |} | ||
+ | |||
+ | Peaklength requiring a drop of 10sigma between chunks of 5 samples | ||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:run_31809_pklength_track109.png|thumb|x250px|run 31809 (horizontal)]] | ||
+ | |[[Image:run_31811_pklength_track109.png|thumb|x250px|run 31811 (tilted 30deg)]] | ||
+ | |[[Image:run_31810_pklength_track109.png|thumb|x250px|run 31810 (tilted 45deg)]] | ||
|} | |} |
Latest revision as of 16:30, 10 July 2012
Stripes are +/- 1sigma and 2sigma.
Try this: search backwards from end sample, looking for change in ADC value going below -2sigma (or -1sigma if -2sigma not found, or min value if -1sigma not found), then search forwards until change in ADC value goes +ve.
That gives the following for the above events: (run 31810) 260, 258, 295, 293, 264 and (run 31809) 242, 230, 281, 301, 268
Changed this to search for change in ADC value going below -1sigma, or min value if -1sigma not found, then search forwards until change in value goes +ve
Look at difference between chunks of 2 and 4 samples, summed, stripes are +/- 1, 2, 4, 8, 10sigma.
Peaklength requiring a drop of 10sigma between chunks of 4 samples
Peaklength requiring a drop of 8sigma between chunks of 4 samples
Peaklength requiring a drop of 6sigma between chunks of 4 samples
Look at difference between chunks of 5 and 6 samples, summed, stripes are +/- 1, 5, 10, 15, 20sigma.
Peaklength requiring a drop of 15sigma between chunks of 5 samples
Peaklength requiring a drop of 10sigma between chunks of 5 samples