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Bug #1917

Large discrepancy between triggers (as per CDB) and spacepoints

Added by Greis, Jan about 6 years ago. Updated about 6 years ago.

Status:
Open
Priority:
Normal
Assignee:
Rogers, Chris
Category:
-
Target version:
-
Start date:
03 March 2017
Due date:
% Done:

0%

Estimated time:
Workflow:
New Issue

Description

As discussed here some numbers:

For run 8277:
TOF1: 48544 triggers, 67568 slab hits, 20648 space points
TOF2: 22669 tiggers, 16606 slab hits, 3670 space points

I also checked another dataset to make sure this isn't isolated. For run 8499 at TOF2 i get
105834 triggers, 32029 space points

Files

tofeff.tar.gz (16.3 KB) tofeff.tar.gz Greis, Jan, 06 March 2017 12:53

Related issues

Related to MAUS - Bug #1912: TOF inefficiencyIn ProgressWilbur, Scott21 February 2017

Actions
#1

Updated by Rogers, Chris about 6 years ago

Which MAUS version are you using?

Can you run the script "load_root_file.py" attached to #1912 and upload the output?

#2

Updated by Greis, Jan about 6 years ago

2.8.3
Output is attached.

#3

Updated by Rogers, Chris about 6 years ago

Note the log file Jan uploaded indicates that only 50 % of the two-slab coincidences make space points in TOF2:

TOF2 failed calibration 50.28 % out of range 0.81 % Okay 48.91 %

Can TOF experts confirm?

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