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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|[[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.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]] | |[[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]] | ||
|} | |} |
Revision as of 14:28, 24 June 2013
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 (2kV) | 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