[Primexd] tagger accidentals

gasparan at jlab.org gasparan at jlab.org
Mon Mar 25 22:41:11 EDT 2019


  Thanks Ilya,

 Looks like we hardly can tolerate this 200 nA beam in that case.
 We can ask Sean to comment and compere with their runs.

 Ashot

>
>  Hi Ashot,
>
> I quickly looked at the tagger statistics you asked
> for the regular He production run with the updated timing (which is
> important).
>
> I got the probabilities to have an extra tagger hit shown in the table
> below.
> It would be interesting to compare with other people results.
>
> Please let me know if it is helpful.
>
> Thank you,
> Ilya
>
>
>
> Tagger energy range            number of RF bunches   chance to see more
> than one hit (in the same energy range)
>                                                                                      in
> case
> if
> at
> least
> one
> hit
> seen
> (in
> this
> energy
> range)
> in
> event
>
>  >  6GeV                                        3 (main+/-1)
>                   35%
>  >  6GeV                                        1 (main)
>                      15%
>
>  >  9GeV                                        3 (main+/-1)
>                   17%
>  >  9GeV                                        1 (main)
>                        7%
>
>
>
>





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