Difference between revisions of "CDC 55 45"

Revision as of 11:34, 12 October 2012

55/45 Ar/CO₂ and cosmics, prototype horizontal

2000V, 55/45 gas, prototype horizontal
Pedestal mean of samples 0-99, ch20, over 1 day	Pedestal std. dev. of samples 0-99, ch20, over 1 day

2025V, 55/45 gas, prototype horizontal
Pedestal mean of samples 0-99, ch20, over 1 day	Pedestal std. dev. of samples 0-99, ch20, over 1 day

2050V, 55/45 gas, prototype horizontal
Pedestal mean of samples 0-99, ch20, over 1 day	Pedestal std. dev. of samples 0-99, ch20, over 1 day

2100V, 55/45 gas, prototype horizontal
Pedestal mean of samples 0-99, ch20, over 1 day	Pedestal std. dev. of samples 0-99, ch20, over 1 day

55/45 gas, prototype horizontal, 4pedestalsigma (gray) and 5pedestalsigma (blue) hit threshold, fit range 5pedestalsigma+
2000V, lines show 99.7%, 99% and 95% of landau summed 0-4000 (47, 60, 85)	2025V, lines show 99.7%, 99% and 95% of landau summed 0-4000 (49, 65, 98)	2050V, lines show 99.7%, 99% and 95% of landau summed 0-4000 (65, 88, 134)	2100V, lines show 99.7%, 99% and 95% of landau summed 0-4000 (94, 130, 201)

55/45 gas, noise std dev 16.5, hit threshold 5x16.5 = 82.5, fit range 5pedestalsigma+
HV	Fit MPV	Fit sigma (FWHM/4)	MPV/sigma	4045/MPV	99% point
2000	149	42	3.5	27	60
2025	181	55	3.3	22	65
2050	251	77	3.2	16	88
2100	380	120	3.2	11	130

@@ Line 43: / Line 43: @@
 ! Fit MPV
 ! Fit sigma (FWHM/4)
+! Fit FWHM/MPV
 ! MPV/sigma
-! 99% point
 ! 4045/MPV
+! 99% point
+! 97% point
+! 95% point
 |-
 | 2000
 | 149
 | 42
+|
 | 3.5
-| 60
 | 27
+| 60
 |-
 | 2025
 | 181
 | 55
+|
 | 3.3
-| 65
 | 22
+| 65
 |-
 | 2050
 | 251
 | 77
+|
 | 3.2
-| 88
 | 16
+| 88
 |-
 | 2100
 | 380
 | 120
+|
 | 3.2
-| 130
 | 11
+| 130
 |}