Difference between revisions of "CDC straight straws"
(43 intermediate revisions by the same user not shown) | |||
Line 16: | Line 16: | ||
|[[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 | ||
Straight-line intercept is 834.51, to match histogram fit t0, use tz_add 15.58 | Straight-line intercept is 834.51, to match histogram fit t0, use tz_add 15.58 | ||
+ | |||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:cdc_run_32235_dt_ch_thr5.png|thumb|x250px|Drift time vs channel number, threshold 5#sigma]] | ||
+ | |[[Image:cdc_run_32235_dt_ch_amp180.png|thumb|x250px|Drift time vs channel number, threshold 5#sigma and amplitude>180]] | ||
+ | |} | ||
+ | |||
+ | |||
+ | |||
+ | |||
{| border="0" cellpadding="2" | {| border="0" cellpadding="2" | ||
Line 27: | Line 37: | ||
{| border="0" cellpadding="2" | {| border="0" cellpadding="2" | ||
|[[Image:cdc_run_32235_track23.png|thumb|x350px|Event 23, 4 hits off-track]] | |[[Image:cdc_run_32235_track23.png|thumb|x350px|Event 23, 4 hits off-track]] | ||
− | |[[Image:cdc_run_32235_track253.png|thumb|x350px|Event | + | |[[Image:cdc_run_32235_track253.png|thumb|x350px|Event 253, 48 hits off-track]] |
− | |[[Image:cdc_run_32235_track1037.png|thumb|x350px|Event | + | |[[Image:cdc_run_32235_track1037.png|thumb|x350px|Event 1037, 21 hits off-track]] |
+ | |} | ||
+ | |||
+ | Resolutions using tz=16 and Garfield for 2100V, 51Ar, 49CO2 | ||
+ | |||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:cdc_run_32235_noshower.png|thumb|x250px|Resolution, ALL CHANNELS, violet=total hits<24, dk blue: 5 or less hits off track ]] | ||
+ | |[[Image:cdc_run_32235_res_ch.png|thumb|x250px|Resolution vs channel number]] | ||
+ | |} | ||
+ | |||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:cdc_run_32235_resE9.png|thumb|x250px|Resolution, E9 board channels, <5 hits off track]] | ||
+ | |[[Image:cdc_run_32235_resxE9.png|thumb|x250px|Resolution vs driftradius]] | ||
+ | |} | ||
+ | |||
+ | Different scint orientations | ||
+ | |||
+ | {| border="0" cellpadding="2" | ||
+ | |[[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, downstream end]] | ||
+ | |[[Image:cdc_run_32269_maxamp_overlay.png|thumb|x250px|Boards E8, E9, E10, big scintillators, along CDC]] | ||
+ | |} | ||
+ | |||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:cdc_run_32269_thr5_maxampfit.png|thumb|x250px|Boards E8, E9, E10, big scintillators, along CDC, fit to thr5 data]] | ||
+ | |} | ||
+ | |||
+ | Drift time fits, hit threshold 5#sigma | ||
+ | {| border="0" cellpadding="2" | ||
+ | |[[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, downstream end]] | ||
+ | |[[Image:cdc_run_32269_thr5_dtfit.png|thumb|x250px|big scintillators, along CDC]] | ||
+ | |} | ||
+ | |||
+ | Hit threshold 6#sigma | ||
+ | {| border="0" cellpadding="2" | ||
+ | |[[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, downstream end]] | ||
+ | |[[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]] | ||
+ | |} | ||
+ | |||
+ | |||
+ | |||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:cdc_run_32292_dt_ch.png|thumb|x250px|drift time for each channel]] | ||
+ | |[[Image:cdc_run_32292_dt_chz.png|thumb|x250px|drift times]] | ||
+ | |} | ||
+ | |||
+ | |||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:cdc_run_32292_dt_34_35.png|thumb|x250px|drift time for channels 34, 35]] | ||
+ | |[[Image:cdc_run_32292_maxamp_34_35.png|thumb|x250px|max amplitude for channels 34, 35]] | ||
+ | |} | ||
+ | |||
+ | |||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:cdc_run_32292_sig34_35.png|thumb|x250px|pedestal width for channels 34, 35]] | ||
+ | |} | ||
+ | |||
+ | |||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:cdc_run_32292_maxampdt34.png|thumb|x250px|max amplitude vs drift time for channel 34]] | ||
+ | |[[Image:cdc_run_32292_maxampdt35.png|thumb|x250px|max amplitude vs drift time for channel 35]] | ||
+ | |} | ||
+ | |||
+ | |||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:cdc_run_32292_dt_dt34.png|thumb|x250px|drift times with ch 34 nonzero]] | ||
+ | |[[Image:cdc_run_32292_dt_dt34high.png|thumb|x250px|drift times with ch 34 drift time > 1500]] | ||
+ | |} | ||
+ | |||
+ | {| border="0" cellpadding="2" | ||
+ | |[[Image:run_32292_trks34_800up.png|thumb|x500px|tracks with ch 34 drift time > 800]] | ||
+ | |[[Image:run_32292_trks34_1500up.png|thumb|x500px|tracks with ch 34 drift time > 1550]] | ||
+ | |[[Image:run_32292_trks34_1500up_z.png|thumb|x500px|close-up of tracks with ch 34 drift time > 1550]] | ||
+ | |} | ||
+ | |||
+ | |||
+ | {| border="1px" cellpadding="2" style="border-style:solid;" | ||
+ | |+ Drift times (ns) from Garfield for 2110V, 50/50 gas mix, different tube radii | ||
+ | |- | ||
+ | !-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 | ||
+ | |||
+ | |} | ||
+ | |||
+ | {| 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" | {| border="0" cellpadding="2" | ||
− | |[[Image: | + | |[[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