Difference between revisions of "TOF Backgrounds"
From GlueXWiki
(→Detector Configuration) |
|||
(4 intermediate revisions by 2 users not shown) | |||
Line 4: | Line 4: | ||
== Detector Configuration == | == Detector Configuration == | ||
+ | * Geometry as of January 15, 2007 | ||
* Double-Hit Resolution: 25 ns | * Double-Hit Resolution: 25 ns | ||
* Threshold: 0.8 MeV | * Threshold: 0.8 MeV | ||
* Maximum Number of Hits: 100 | * Maximum Number of Hits: 100 | ||
− | |||
== Items for Discussion == | == Items for Discussion == | ||
* There seem to be no hits for bars 41-44. Software bug? | * There seem to be no hits for bars 41-44. Software bug? | ||
− | + | ''Yes, it was a mismatch between the names used in the hdds geometry document and those expected in the simulation hits package. This bug was fixed by RTJ on 16-Jan.'' | |
== Plots == | == Plots == | ||
+ | |||
+ | [[Image:tof_rate_v_bar.jpg|frame|center|The characteristic background rate per PMT per bar in the TOF.]] | ||
+ | |||
+ | [[Image:tof_energy.jpg|frame|center|The energy deposition in the TOF for background hits. There are no surprises here -- log( 2.54 cm * 0.002 GeV / cm ) = -2.3 ]] |
Latest revision as of 10:14, 17 May 2007
Back to Background Rate Studies
Detector Configuration
- Geometry as of January 15, 2007
- Double-Hit Resolution: 25 ns
- Threshold: 0.8 MeV
- Maximum Number of Hits: 100
Items for Discussion
- There seem to be no hits for bars 41-44. Software bug?
Yes, it was a mismatch between the names used in the hdds geometry document and those expected in the simulation hits package. This bug was fixed by RTJ on 16-Jan.