Difference between revisions of "CDC straight straws"
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{| border="0" cellpadding="2" | {| 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_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_trks34_1550up.png|thumb|x500px|ch 22 drift time > 1550]] | ||
+ | |[[Image:run_32292_trks35_1550up.png|thumb|x500px|ch 22 drift time > 1550]] | ||
+ | |[[Image:run_32292_trks36_1550up.png|thumb|x500px|ch 22 drift time > 1550]] | ||
+ | |[[Image:run_32292_trks38_1550up.png|thumb|x500px|ch 22 drift time > 1550]] | ||
+ | |[[Image:run_32292_trks39_1550up.png|thumb|x500px|ch 22 drift time > 1550]] | ||
+ | |[[Image:run_32292_trks40_1550up.png|thumb|x500px|ch 22 drift time > 1550]] | ||
+ | |||
+ | |||
|} | |} |
Revision as of 11:59, 10 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
-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 |
|