Difference between revisions of "CDC tilted detectors summary"

From GlueXWiki
Jump to: navigation, search
 
(7 intermediate revisions by the same user not shown)
Line 199: Line 199:
 
<hr/>
 
<hr/>
 
<h3>More 51/49 Ar/CO2 premixed gas, unfiltered, label reads analysis 48.6 CO2</h3>
 
<h3>More 51/49 Ar/CO2 premixed gas, unfiltered, label reads analysis 48.6 CO2</h3>
 +
 +
 +
{| border="0" cellpadding="2"
 +
|+ Amplitude histograms, Drift time < 11ns
 +
|[[Image:run_32069-32072_ampfitlanz_11ns.png|thumb|x150px|Tilt 0&deg;]]
 +
|[[Image:run_32073_ampfitlanz_11ns.png|thumb|x150px|Tilt 15&deg;]]
 +
|[[Image:run_32071_ampfitlanz_11ns.png|thumb|x150px|Tilt 20&deg;]]
 +
|[[Image:run_32068_ampfitlanz_11ns.png|thumb|x150px|Tilt 30&deg;]]
 +
|[[Image:run_32070-32074_ampfitlanz_11ns.png|thumb|x150px|Tilt 45&deg;]]
 +
|}
 +
 +
{| cellpadding="2" border="1" cellspacing="0"
 +
|+ Amplitude MPVs from Landau fits, drift time < 11ns
 +
|-
 +
! colspan="5"| MPV from Landau fit to integrated amplitude histo
 +
|-
 +
! colspan="1"| Horizontal 
 +
! colspan="1"| 15 degrees
 +
! colspan="1"| 20 degrees
 +
! colspan="1"| 30 degrees
 +
! colspan="1"| 45 degrees
 +
|-
 +
| 520 &plusmn; 6
 +
| 501 &plusmn; 11
 +
| 546 &plusmn; 12
 +
| 559 &plusmn; 11
 +
| 642 &plusmn; 8
 +
|-
 +
! colspan="5"| Ratio of MPV tilted:horizontal
 +
|-
 +
! colspan="1"|
 +
! colspan="1"| 15 degrees
 +
! colspan="1"| 20 degrees
 +
! colspan="1"| 30 degrees
 +
! colspan="1"| 45 degrees
 +
|-
 +
|
 +
| 0.96 &plusmn; 0.02
 +
| 1.05 &plusmn; 0.03
 +
| 1.08 &plusmn; 0.02
 +
| 1.23 &plusmn; 0.02
 +
|}
 +
 +
 +
 +
{| cellpadding="2" border="1" cellspacing="0"
 +
|+ Integrated signal amplitude MPVs from Landau fits, drift time < 11ns
 +
|-
 +
! colspan="5"| MPV from Landau fit to integrated amplitude histo
 +
|-
 +
! colspan="1"| Horizontal 
 +
! colspan="1"| 15 degrees
 +
! colspan="1"| 20 degrees
 +
! colspan="1"| 30 degrees
 +
! colspan="1"| 45 degrees
 +
|-
 +
| 12398 &plusmn; 138
 +
| 13609 &plusmn; 227
 +
| 14330 &plusmn; 264
 +
| 15334 &plusmn; 273
 +
| 18033 &plusmn; 190
 +
|-
 +
! colspan="5"| Ratio of MPV tilted:horizontal
 +
|-
 +
! colspan="1"|
 +
! colspan="1"| 15 degrees
 +
! colspan="1"| 20 degrees
 +
! colspan="1"| 30 degrees
 +
! colspan="1"| 45 degrees
 +
|-
 +
|
 +
| 1.10 &plusmn; 0.02
 +
| 1.16 &plusmn; 0.02
 +
| 1.22 &plusmn; 0.02
 +
| 1.45 &plusmn; 0.02
 +
|-
 +
! colspan="5"| Ratio of vertical path length for detector tilted:horizontal
 +
|-
 +
|
 +
| 1.04
 +
| 1.06
 +
| 1.15
 +
| 1.41
 +
|}
 +
 +
 +
 +
  
  
Line 204: Line 292:
 
|+ Integrated signal histograms, Drift time < 11ns
 
|+ Integrated signal histograms, Drift time < 11ns
 
|[[Image:run_32069_integfitz_11ns.png|thumb|x150px|Tilt 0&deg;]]
 
|[[Image:run_32069_integfitz_11ns.png|thumb|x150px|Tilt 0&deg;]]
 +
|[[Image:run_32071_integfitz_11ns.png|thumb|x150px|Tilt 20&deg;]]
 
|[[Image:run_32068_integfitz_11ns.png|thumb|x150px|Tilt 30&deg;]]
 
|[[Image:run_32068_integfitz_11ns.png|thumb|x150px|Tilt 30&deg;]]
 
|[[Image:run_32070_integfitz_11ns.png|thumb|x150px|Tilt 45&deg;]]
 
|[[Image:run_32070_integfitz_11ns.png|thumb|x150px|Tilt 45&deg;]]
 
|}
 
|}
 +
  
  
Line 212: Line 302:
 
|+ Integrated signal MPVs and ratios to value for horizontal, drift time < 11ns
 
|+ Integrated signal MPVs and ratios to value for horizontal, drift time < 11ns
 
! colspan="1"| Horizontal MPV  
 
! colspan="1"| Horizontal MPV  
 +
! colspan="1"| 20 degrees MPV
 
! colspan="1"| 30 degrees MPV
 
! colspan="1"| 30 degrees MPV
 
! colspan="1"| 45 degrees MPV
 
! colspan="1"| 45 degrees MPV
 +
! colspan="1"| 20 degrees:horizontal
 
! colspan="1"| 30 degrees:horizontal
 
! colspan="1"| 30 degrees:horizontal
 
! colspan="1"| 45 degrees:horizontal
 
! colspan="1"| 45 degrees:horizontal
 
|-
 
|-
 +
! Landau
 +
! Landau
 
! Landau
 
! Landau
 
! Landau
 
! Landau
Line 223: Line 317:
 
! Landau
 
! Landau
 
|-
 
|-
−
| 12974
+
| 12974 &plusmn; 219
−
| 16053
+
| 15057 &plusmn; 260
−
| 18642
+
| 16053 &plusmn; 266
 +
| 18642 &plusmn; 272
 +
| 1.16 &plusmn; 0.03
 
| 1.24 &plusmn; 0.03
 
| 1.24 &plusmn; 0.03
 
| 1.43 &plusmn; 0.03
 
| 1.43 &plusmn; 0.03
Line 236: Line 332:
 
|+ Ratio of integrated signal fitted Landau MPV to value for horizontal, drift time < 11ns
 
|+ Ratio of integrated signal fitted Landau MPV to value for horizontal, drift time < 11ns
 
! Gas mix
 
! Gas mix
 +
! 20 degrees:horizontal
 
! 30 degrees:horizontal
 
! 30 degrees:horizontal
 
! 45 degrees:horizontal
 
! 45 degrees:horizontal
 
|-
 
|-
 
| 50/50 mixed gas
 
| 50/50 mixed gas
 +
|
 
| 1.35 &plusmn; 0.04
 
| 1.35 &plusmn; 0.04
 
| 1.43 &plusmn; 0.04
 
| 1.43 &plusmn; 0.04
 
|-
 
|-
 
| 50.8/49.1 premixed gas
 
| 50.8/49.1 premixed gas
 +
|
 
| 1.22 &plusmn; 0.02
 
| 1.22 &plusmn; 0.02
 
| 1.25 &plusmn; 0.03
 
| 1.25 &plusmn; 0.03
 
|-
 
|-
 
| 51.4/48.6 premixed gas
 
| 51.4/48.6 premixed gas
 +
| 1.16 &plusmn; 0.03
 
| 1.24 &plusmn; 0.03
 
| 1.24 &plusmn; 0.03
−
|
+
| 1.43 &plusmn; 0.03
 
|}
 
|}

Latest revision as of 12:28, 13 March 2013

Prototype at 2100V, ~50/50 Ar/CO2

Tilted detectors
Tilted detectors

50/50 Ar/CO2 mixed gas

Integrated signal histograms, central block of straws
Horizontal
Tilt 30°
Tilt 45°

The paler lines are fits to a Landau dist, the darker lines are fits to a Landau-Gaussian convolution.

Ratio of MPVs of Landau fit to integration histograms for horizontal : 30° : 45° should be 1 : 1.15 : 1.41

The 45° and 0° runs were separated by 1/2 day; the 30° data was taken one week later.


Amplitude MPVs and ratios to amplitude with prototype horizontal
Horizontal MPV 30 degrees MPV 45 degrees MPV 30 degrees:horizontal 45 degrees:horizontal
Landau Landau-Gauss Landau Landau-Gauss Landau Landau-Gauss Landau Landau-Gauss Landau Landau-Gauss
218 229 256 264 264 285 1.17 1.15 1.21 1.24


Integrated signal MPVs and ratios to value for horizontal
Horizontal MPV 30 degrees MPV 45 degrees MPV 30 degrees:horizontal 45 degrees:horizontal
Landau Landau-Gauss Landau Landau-Gauss Landau Landau-Gauss Landau Landau-Gauss Landau Landau-Gauss
5167 5301 6722 7446 7163 8113 1.30 1.40 1.39 1.53


50/50 Ar/CO2 mixed gas, hits closer than 1mm to the wire


Integrated signal histograms, drift time < 11ns (1mm either side of the wire)
Horizontal
Tilt 30°
Tilt 45°

The events in the noise peak in the amplitude histo do not reach the integration histo because the code ignores hits with a leading edge gradient less than 1.

Amplitude MPVs and ratios to value for horizontal, drift time < 11ns
Horizontal MPV 30 degrees MPV 45 degrees MPV 30 degrees:horizontal 45 degrees:horizontal
Landau Landau-Gauss Landau Landau-Gauss Landau Landau-Gauss Landau Landau-Gauss Landau Landau-Gauss
281 272 364 335 382 383 1.30 1.23 1.36 1.41


Integrated signal MPVs and ratios to value for horizontal, drift time < 11ns
Horizontal MPV 30 degrees MPV 45 degrees MPV 30 degrees:horizontal 45 degrees:horizontal
Landau Landau-Gauss Landau Landau-Gauss Landau Landau-Gauss Landau Landau-Gauss Landau Landau-Gauss
8604 7986 11658 10839 12339 11537 1.35 ± 0.04 1.36 1.43 ± 0.04 1.44


51/49 Ar/CO2 premixed gas, unfiltered, label reads analysis 49.1 CO2


Integrated signal histograms, Drift time < 11ns
Tilt 0°
Tilt 30°
Tilt 45°


Integrated signal MPVs and ratios to value for horizontal, drift time < 11ns
Horizontal MPV 30 degrees MPV 45 degrees MPV 30 degrees:horizontal 45 degrees:horizontal
Landau Landau Landau Landau Landau
12970 15850 16217 1.22 ± 0.02 1.25 ± 0.03


More 51/49 Ar/CO2 premixed gas, unfiltered, label reads analysis 48.6 CO2


Amplitude histograms, Drift time < 11ns
Tilt 0°
Tilt 15°
Tilt 20°
File:Run 32068 ampfitlanz 11ns.png
Tilt 30°
File:Run 32070-32074 ampfitlanz 11ns.png
Tilt 45°
Amplitude MPVs from Landau fits, drift time < 11ns
MPV from Landau fit to integrated amplitude histo
Horizontal 15 degrees 20 degrees 30 degrees 45 degrees
520 ± 6 501 ± 11 546 ± 12 559 ± 11 642 ± 8
Ratio of MPV tilted:horizontal
15 degrees 20 degrees 30 degrees 45 degrees
0.96 ± 0.02 1.05 ± 0.03 1.08 ± 0.02 1.23 ± 0.02


Integrated signal amplitude MPVs from Landau fits, drift time < 11ns
MPV from Landau fit to integrated amplitude histo
Horizontal 15 degrees 20 degrees 30 degrees 45 degrees
12398 ± 138 13609 ± 227 14330 ± 264 15334 ± 273 18033 ± 190
Ratio of MPV tilted:horizontal
15 degrees 20 degrees 30 degrees 45 degrees
1.10 ± 0.02 1.16 ± 0.02 1.22 ± 0.02 1.45 ± 0.02
Ratio of vertical path length for detector tilted:horizontal
1.04 1.06 1.15 1.41




Integrated signal histograms, Drift time < 11ns
Tilt 0°
Tilt 20°
Tilt 30°
Tilt 45°


Integrated signal MPVs and ratios to value for horizontal, drift time < 11ns
Horizontal MPV 20 degrees MPV 30 degrees MPV 45 degrees MPV 20 degrees:horizontal 30 degrees:horizontal 45 degrees:horizontal
Landau Landau Landau Landau Landau Landau Landau
12974 ± 219 15057 ± 260 16053 ± 266 18642 ± 272 1.16 ± 0.03 1.24 ± 0.03 1.43 ± 0.03


All ratios in one table

Ratio of integrated signal fitted Landau MPV to value for horizontal, drift time < 11ns
Gas mix 20 degrees:horizontal 30 degrees:horizontal 45 degrees:horizontal
50/50 mixed gas 1.35 ± 0.04 1.43 ± 0.04
50.8/49.1 premixed gas 1.22 ± 0.02 1.25 ± 0.03
51.4/48.6 premixed gas 1.16 ± 0.03 1.24 ± 0.03 1.43 ± 0.03
Retrieved from "https://halldweb.jlab.org/wiki/index.php?title=CDC_tilted_detectors_summary&oldid=45452"