Analyzing #454

ID plot for F6 detector

Added by Vratislav Chudoba over 4 years ago. Updated over 4 years ago.

Status:ОткрытаStart date:04/01/2020
Priority:НормальныйDue date:
Assignee:Vratislav Chudoba% Done:

50%

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Target version:-

Description

Provide the time-amplitude identification plot for a detector at F6. A group Z=1 should be separated from group Z>1. Provide a condition for Z=1 group in an arbitrary format.

Be careful with different geometry before and after run 40.

History

#1 Updated by Vratislav Chudoba over 4 years ago

  • Assignee set to Vratislav Chudoba
  • % Done changed from 0 to 50

To construct an identification plot from the F6 detector, a non-calibrated amplitude in ADC channels from only one PMT was used. The time was calculated as time in F6 minus time in F5. We may observe the separation of Z=1 region and  Z>1 region. A common condition for both used geometries to select the Z=1 group was determined as

dE less than 0.3 and time(F6-F5) more than 23 ns and time(F6-F5) less than 44 ns.


Left - overall unconditioned time-amplitude identification plot. Upper middle - Zoom to the relevant part of the ID plot. Trigger==1 was used to exclude group Z=1. Lower middle - Zoom to the relevant part of the ID plot triggered by side telescope (trigger==6). Red dots represent the Z=1 group showed with the additional condition for beam size at the target plane introduced in task 452. Upper right - the same as "upper middle" but for geometry modified from run_40. Lower right - the same as "lower middle" but for geometry modified from run_40.

 

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