Difference between revisions of "CDC straight straws"
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|[[Image:cdc_run_32235_dtfit_thr6.png|thumb|x250px|Boards E8, E9, E10, drift time fit, threshold 6]] | |[[Image:cdc_run_32235_dtfit_thr6.png|thumb|x250px|Boards E8, E9, E10, drift time fit, threshold 6]] | ||
|} | |} | ||
+ | |||
Drift time fit | Drift time fit | ||
Estimate of t0 is 850.09 and tmax is 1464.19, difference is 614.10 | Estimate of t0 is 850.09 and tmax is 1464.19, difference is 614.10 | ||
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{| border="0" cellpadding="2" | {| border="0" cellpadding="2" | ||
− | |[[Image:cdc_run_32235_maxamp_overlay.png|thumb|x250px|Boards E8, E9, E10, | + | |[[Image:cdc_run_32235_maxamp_overlay.png|thumb|x250px|Boards E8, E9, E10, big scintillators, across CDC, upstream end]] |
− | |[[Image:cdc_run_32268_maxamp_overlay.png|thumb|x250px|Boards E8, E9, E10, big scintillators, across CDC]] | + | |[[Image:cdc_run_32268_maxamp_overlay.png|thumb|x250px|Boards E8, E9, E10, big scintillators, across CDC, downstream end]] |
|[[Image:cdc_run_32269_maxamp_overlay.png|thumb|x250px|Boards E8, E9, E10, big scintillators, along CDC]] | |[[Image:cdc_run_32269_maxamp_overlay.png|thumb|x250px|Boards E8, E9, E10, big scintillators, along CDC]] | ||
|} | |} | ||
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Drift time fits, hit threshold 5#sigma | Drift time fits, hit threshold 5#sigma | ||
{| border="0" cellpadding="2" | {| border="0" cellpadding="2" | ||
− | |[[Image:cdc_run_32235_thr5_dtfit.png|thumb|x250px| | + | |[[Image:cdc_run_32235_thr5_dtfit.png|thumb|x250px|big scintillators, across CDC, upstream end]] |
− | |[[Image:cdc_run_32268_thr5_dtfit.png|thumb|x250px|big scintillators, across CDC]] | + | |[[Image:cdc_run_32268_thr5_dtfit.png|thumb|x250px|big scintillators, across CDC, downstream end]] |
|[[Image:cdc_run_32269_thr5_dtfit.png|thumb|x250px|big scintillators, along CDC]] | |[[Image:cdc_run_32269_thr5_dtfit.png|thumb|x250px|big scintillators, along CDC]] | ||
|} | |} | ||
Line 73: | Line 74: | ||
Hit threshold 6#sigma | Hit threshold 6#sigma | ||
{| border="0" cellpadding="2" | {| border="0" cellpadding="2" | ||
− | |[[Image:cdc_run_32235_thr6_dtfit.png|thumb|x250px| | + | |[[Image:cdc_run_32235_thr6_dtfit.png|thumb|x250px|big scintillators, across CDC, upstream end]] |
− | |[[Image:cdc_run_32268_thr6_dtfit.png|thumb|x250px|big scintillators, across CDC]] | + | |[[Image:cdc_run_32268_thr6_dtfit.png|thumb|x250px|big scintillators, across CDC, downstream end]] |
|[[Image:cdc_run_32269_thr6_dtfit.png|thumb|x250px|big scintillators, along CDC]] | |[[Image:cdc_run_32269_thr6_dtfit.png|thumb|x250px|big scintillators, along CDC]] | ||
|} | |} | ||
+ | |||
+ | Hit threshold 6#sigma | ||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:cdc_run_32292_dt72.png|thumb|x250px|big scintillators, along CDC, HV grounded to endplate (not HVBs)]] | ||
+ | |[[Image:cdc_run_32293_dt72.png|thumb|x250px|big scintillators, along CDC, added shielding to + HV cables]] | ||
+ | |} | ||
+ | |||
Line 118: | Line 126: | ||
|- | |- | ||
!-dist(mm) | !-dist(mm) | ||
− | !8mm ( | + | !8mm (2.1kV) |
!9mm (2.1kV) | !9mm (2.1kV) | ||
!10mm (2.1kV) | !10mm (2.1kV) | ||
Line 138: | Line 146: | ||
| 9.5mm || || || 1020 | | 9.5mm || || || 1020 | ||
+ | |} | ||
+ | |||
+ | {| border="0" cellpadding="2" | ||
+ | |+Tracks for other straws with drift times>1550ns, searched 50k events for straws 36 and 38, 5k for the rest | ||
+ | |[[Image:run_32292_trks17_1550up.png|thumb|x500px|ch 17 drift time > 1550]] | ||
+ | |[[Image:run_32292_trks22_1550up.png|thumb|x500px|ch 22 drift time > 1550]] | ||
+ | |[[Image:run_32292_trks23_1550up.png|thumb|x500px|ch 23 drift time > 1550]] | ||
+ | |[[Image:run_32292_trks36_1550up.png|thumb|x500px|ch 36 drift time > 1550]] | ||
+ | |[[Image:run_32292_trks38_1550up.png|thumb|x500px|ch 38 drift time > 1550]] | ||
+ | |[[Image:run_32292_trks39_1550up.png|thumb|x500px|ch 39 drift time > 1550]] | ||
+ | |[[Image:run_32292_trks40_1550up.png|thumb|x500px|ch 40 drift time > 1550]] | ||
+ | |} | ||
+ | |||
+ | |||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:run_32292_trks39_1550up_z.png|thumb|x500px|close-up of tracks with ch 39 drift time > 1550]] | ||
+ | |[[Image:run_32292_trks39_1550up.png|thumb|x500px|ch 39 drift time > 1550]] | ||
+ | |[[Image:run_32292_trks39_800up_z.png|thumb|x500px|close-up of tracks with ch 39 drift time > 800]] | ||
+ | |} | ||
+ | |||
+ | |||
+ | {|border="0" cellpadding="2" | ||
+ | |[[Image:run_32292_trks37_800up.png|thumb|x500px|ch 37 drift time > 800]] | ||
+ | |[[Image:run_32292_trks37_800up_z.png|thumb|x500px|close-up of tracks with ch 37 drift time > 800]] | ||
+ | |} | ||
+ | |||
+ | |||
+ | {|border="0" cellpadding="2" | ||
+ | |[[Image:run_32292_res_ch.png|thumb|x250px|resolution for each channel]] | ||
+ | |} | ||
+ | |||
+ | Drift time fit, ch 30, hit threshold 6#sigma | ||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:run_32292_dt30.png|thumb|x250px|ch 30]] | ||
+ | |} | ||
+ | |||
+ | Resolution for ch30, hit threshold 6#sigma | ||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:cdc_run_32292_5050_tz16_tfix1000_resx30.png|thumb|x250px|Resolution vs drift radius ch30, >80% hits on track]] | ||
+ | |[[Image:cdc_run_32292_5050_tz16_tfix1000_res30.png|thumb|x250px|Resolution ch30, >80% hits on track]] | ||
+ | |[[Image:cdc_run_32292_5050_tz16_tfix1000_res30_5mm.png|thumb|x250px|Resolution ch30, drift radius > 5mm, >80% hits on track]] | ||
+ | |} | ||
+ | |||
+ | Resolution for ch30, hit threshold 6#sigma, Garfield tables for 51% Ar, 49% CO2 | ||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:cdc_run_32292_5149_tz16_tfix1000_resx30.png|thumb|x250px|Resolution vs drift radius ch30, >80% hits on track]] | ||
+ | |[[Image:cdc_run_32292_5149_tz16_tfix1000_res30.png|thumb|x250px|Resolution ch30, >80% hits on track]] | ||
+ | |[[Image:cdc_run_32292_5149_tz16_tfix1000_res30_5mm.png|thumb|x250px|Resolution ch30, drift radius > 5mm, >80% hits on track]] | ||
+ | |} | ||
+ | |||
+ | x and y resolution for ch34, driftradius>5mm, hit threshold 6#sigma, Garfield tables for 51% Ar, 49% CO2 | ||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:cdc_run_32292_5149_tz16_tfix1000_res34_5mm.png|thumb|x250px|Resolution ch34, drift radius > 5mm, >80% hits on track]] | ||
+ | |[[Image:cdc_run_32292_5149_tz16_tfix1000_rx34_5mm.png|thumb|x250px|X resolution ch34, drift radius > 5mm, >80% hits on track]] | ||
+ | |[[Image:cdc_run_32292_5149_tz16_tfix1000_ry34_5mm.png|thumb|x250px|Y resolution ch34, drift radius > 5mm, >80% hits on track]] | ||
+ | |} | ||
+ | |||
+ | same again after moving tabled position of wire 34 from x,y to x-180um,y | ||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:cdc_run_32292_5149_tz16_tfix1000_res34_5mm_w.png|thumb|x250px|Resolution ch34, drift radius > 5mm, >80% hits on track, x34-180um]] | ||
+ | |[[Image:cdc_run_32292_5149_tz16_tfix1000_rx34_5mm_w.png|thumb|x250px|X resolution ch34, drift radius > 5mm, >80% hits on track, x34-180um]] | ||
+ | |[[Image:cdc_run_32292_5149_tz16_tfix1000_ry34_5mm_w.png|thumb|x250px|Y resolution ch34, drift radius > 5mm, >80% hits on track, x34-180um]] | ||
+ | |} | ||
+ | |||
+ | Wire 34 in its improved tabled position | ||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:cdc_run_32292_5149_tz16_tfix1000_rad8mm_resx34.png|thumb|x250px|Resolution vs drift radius ch34, >80% hits on track, 8mm Garfield r]] | ||
+ | |[[Image:cdc_run_32292_5149_tz16_tfix1000_rad8mm_res34.png|thumb|x250px|Resolution ch34, >80% hits on track, 8mm Garfield r]] | ||
+ | |[[Image:cdc_run_32292_5149_tz16_tfix1000_rad8mm_res34_5mm.png|thumb|x250px|Resolution ch34, drift radius > 5mm, >80% hits on track, 8mm Garfield r]] | ||
+ | |} | ||
+ | |||
+ | Assumed straw radius of 10mm (not real 8mm) for Garfield x-t tables | ||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:cdc_run_32292_5149_tz16_tfix1000_rad10mm_resx34.png|thumb|x250px|Resolution vs drift radius ch34, >80% hits on track, 10mm Garfield r]] | ||
+ | |[[Image:cdc_run_32292_5149_tz16_tfix1000_rad10mm_res34.png|thumb|x250px|Resolution ch34, >80% hits on track, 10mm Garfield r]] | ||
+ | |[[Image:cdc_run_32292_5149_tz16_tfix1000_rad10mm_res34_5mm.png|thumb|x250px|Resolution ch34, drift radius > 5mm, >80% hits on track, 10mm Garfield r]] | ||
|} | |} |
Latest revision as of 09:31, 18 March 2014
Drift time fit Estimate of t0 is 850.09 and tmax is 1464.19, difference is 614.10 Straight-line intercept is 834.51, to match histogram fit t0, use tz_add 15.58
Resolutions using tz=16 and Garfield for 2100V, 51Ar, 49CO2
Different scint orientations
Drift time fits, hit threshold 5#sigma
Hit threshold 6#sigma
Hit threshold 6#sigma
-dist(mm) | 8mm (2.1kV) | 9mm (2.1kV) | 10mm (2.1kV) |
---|---|---|---|
6mm | 381 | 387 | 394 |
7mm | 527 | 535 | 544 |
7.5mm | 608 | 618 | 628 |
7.8mm | 660 | 670 | 681 |
8mm | 706 | 717 | |
8.5mm | 800 | 813 | |
9mm | 914 | ||
9.5mm | 1020 |
Drift time fit, ch 30, hit threshold 6#sigma
Resolution for ch30, hit threshold 6#sigma
Resolution for ch30, hit threshold 6#sigma, Garfield tables for 51% Ar, 49% CO2
x and y resolution for ch34, driftradius>5mm, hit threshold 6#sigma, Garfield tables for 51% Ar, 49% CO2
same again after moving tabled position of wire 34 from x,y to x-180um,y
Wire 34 in its improved tabled position
Assumed straw radius of 10mm (not real 8mm) for Garfield x-t tables