Difference between revisions of "CDC 55 45"

Revision as of 10:39, 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

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)	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	99% point	4045/MPV
2000	149	42	3.5	60	27
2050	251	77	3.2	88	16
2100	380	120	3.2	130	11

@@ Line 26: / Line 26: @@
 |[[Image:run_31929_ampfitz.png|thumb|x250px|2000V, lines show 99.7%, 99% and 95% of landau summed 0-4000 (47, 60, 85)]]
 |[[Image:run_31928_ampfitz.png|thumb|x250px|2050V, lines show 99.7%, 99% and 95% of landau summed 0-4000 (65, 88, 134)]]
-|[[Image:run_31927_ampfitz.png|thumb|x250px|2100V, lines show 99.7%, 99% and 95% of landau summed 0-4000 ()]]
+|[[Image:run_31927_ampfitz.png|thumb|x250px|2100V, lines show 99.7%, 99% and 95% of landau summed 0-4000 (94, 130, 201)]]
 |}
@@ Line 54: / Line 54: @@
 |-
 | 2100
-| 285
+| 380
-| 87
+| 120
-| 3.3
+| 3.2
-| 101
+| 130
-| 14
+| 11
 |}