Difference between revisions of "2018 Data - Analysis Page"

Revision as of 23:21, 3 February 2021

Target configuration report
- Note: cryotargets need to subtract window thickness and apply a correction of 0.996 due to length contraction at low temperature
Target ladder survey
- Note: z position of "raster target" is upstream face. All solid targets have upstream face at same psoition.
Solid target notes
- Note: I think there was a transcription error for the carbon target. The report says 0.5244 g/cm2. I get 0.5224 g/cm2 from the notes above.
Beam and target offsets:
- Analysis of SHMS/HMS C data (log entry needed)
- Offsets to put in MC (from email from Abishek)
  - x-spec offset = +0.127 cm
  - y-spec offset = -0.057 cm
  - x-beam offset = (0.073 - x-bpm) cm
  - z-target offset = 0.212 cm (carbon target)
How I get Boron from B4C: [1]

@@ Line 26: / Line 26: @@
 * SHMS
 ** NGC efficiency lookup table: [https://hallcweb.jlab.org/elogs/E12-10-002+Preparations/317 F2 elog 317]
-** Calorimeter efficiency: [https://hallcweb.jlab.org/elogs/E12-10-002+Preparations/287 F2 elog 287] (can't find log entry with polynomial form)
+** Calorimeter efficiency: [https://hallcweb.jlab.org/elogs/E12-10-002+Preparations/287 F2 elog 287] [https://hallcweb.jlab.org/elogs/E12-10-002+Preparations/321]
 ** Trigger efficiency
 ** Electronic dead time