Difference between revisions of "Gembeam log first"
From Hall A Wiki
| Line 25: | Line 25: | ||
Gem3 hits with good x and y = 92 good x3 = 102 Good y3 = 166 | Gem3 hits with good x and y = 92 good x3 = 102 Good y3 = 166 | ||
|- | |- | ||
| − | | 535 || Beam || Apr 22 2011 || 11:21 || 12:03 || 3.850V || 52111 || Start run before beam and took about 1100 events with no beam. Took data at 1uA with He target. Plots of | + | | 535 || Beam || Apr 22 2011 || 11:21 || 12:03 || 3.850V || 52111 || Start run before beam and took about 1100 events with no beam. Took data at 1uA with He target. 2d Plots of [https://hallaweb.jlab.org/wiki/index.php/Image:Pos_y_x_535.gif Y vx X position for each GEM ], [https://hallaweb.jlab.org/wiki/index.php/Image:Size_y_x_535.gif Y vx X size for each GEM ], [https://hallaweb.jlab.org/wiki/index.php/Image:Adc_y_x_535.gif Y vx X adc for each GEM ], [https://hallaweb.jlab.org/wiki/index.php/Image:Adc_size_535.gif ADC vs size for each GEM plane] |
Gem1 hits with good x and y = 7620 good x1 = 8342 Good y1 = 11666 | Gem1 hits with good x and y = 7620 good x1 = 8342 Good y1 = 11666 | ||
Gem2 hits with good x and y = 5454 good x2 = 6189 Good y2 = 10321 | Gem2 hits with good x and y = 5454 good x2 = 6189 Good y2 = 10321 | ||
Revision as of 14:57, 22 April 2011
| RUN # | Source/Cosmic/Pedestal | Date | Start Time | End Time | HV | # of events | notes |
|---|---|---|---|---|---|---|---|
| 531 | Pedestal | Apr 21 2011 | 3.850V | Good pedestal run : ADC vs. chan number , Mean vs. chan number ,RMS vs. chan number | |||
| 532 | Cosmics | Apr 21 2011 | 3.850V | Try cosmic with only one paddle. Not successful | |||
| 533 | Cosmics | Apr 21 2011 | 14:38 | 15:30 | 3.850V | 1103 | Make coincidence between small paddle and bottom half of "E" plane, Raised the voltage on the scintillator paddle to 2.15V during run to increase rate.
Gem1 hits with good x and y = 52 good x1 = 59 Good y1 = 92 Gem2 hits with good x and y = 47 good x2 = 49 Good y2 = 118 Gem3 hits with good x and y = 99 good x3 = 111 Good y3 = 192 |
| 534 | Cosmics | Apr 21 2011 | 15:31 | 16:20 | 3.850V | 12356 | Before run start increase gas flow from 0.2 to 0.4 at flowmeter
Gem1 hits with good x and y = 102 good x1 = 110 Good y1 = 141 Gem2 hits with good x and y = 46 good x2 = 49 Good y2 = 122 Gem3 hits with good x and y = 92 good x3 = 102 Good y3 = 166 |
| 535 | Beam | Apr 22 2011 | 11:21 | 12:03 | 3.850V | 52111 | Start run before beam and took about 1100 events with no beam. Took data at 1uA with He target. 2d Plots of Y vx X position for each GEM , Y vx X size for each GEM , Y vx X adc for each GEM , ADC vs size for each GEM plane
Gem1 hits with good x and y = 7620 good x1 = 8342 Good y1 = 11666 Gem2 hits with good x and y = 5454 good x2 = 6189 Good y2 = 10321 Gem3 hits with good x and y = 2616 good x3 = 2945 Good y3 = 6287 Hit in all planes = 1580 Good x2 and y2 = 5454 with good x1 = 4136 eff = 0.758343 Good x2 and y2 = 5454 with good y1 = 4390 eff = 0.804914 Good x3 and y3 = 2616 with good x1 = 2023 eff = 0.773318 Good x3 and y3 = 2616 with good y1 = 2084 eff = 0.796636 Good x1 and y1 = 7620 with good x2 = 4268 eff = 0.560105 Good x1 and y1 = 7620 with good y2 = 5526 eff = 0.725197 Good x3 and y3 = 2616 with good x2 = 1966 eff = 0.751529 Good x3 and y3 = 2616 with good y2 = 2159 eff = 0.825306 Good x1 and y1 = 7620 with good x3 = 2139 eff = 0.280709 Good x1 and y1 = 7620 with good y3 = 3473 eff = 0.455774 Good x2 and y2 = 5454 with good x3 = 1988 eff = 0.364503 Good x2 and y2 = 5454 with good y3 = 2933 eff = 0.53777 |
