Difference between revisions of "CDC straight straws"
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|[[Image:run_32292_trks34_800up.png|thumb|x500px|tracks with ch 34 drift time > 800]] | |[[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 > 1500]] | |[[Image:run_32292_trks34_1500up.png|thumb|x500px|tracks with ch 34 drift time > 1500]] | ||
+ | |} | ||
+ | |||
+ | |||
+ | {| 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 | ||
+ | !9mm | ||
+ | !10mm | ||
+ | |- | ||
+ | | 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 | ||
+ | |||
|} | |} |
Revision as of 09:13, 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 | 9mm | 10mm |
---|---|---|---|
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 |