[Halld-cal] Fwd: [Halld-level1] [New Logentry] Mystery with the FCAL trigger

[Elton Smith]

Hi all,

Does anybody know of additional inputs to the FCAL crates?



-------- Forwarded Message --------
Subject: 	[Halld-level1] [New Logentry] Mystery with the FCAL trigger
Date: 	Fri, 19 Feb 2016 21:35:01 -0500 (EST)
From: 	somov at jlab.org
To: 	halld-level1 at jlab.org



  Mystery with the FCAL trigger <https://logbooks.jlab.org/entry/3381663>

Lognumber 3381663 <https://logbooks.jlab.org/entry/3381663>. Submitted 
by somov <https://logbooks.jlab.org/user/somov> on Fri, 02/19/2016 - 21:33.

Logbooks: 	HDLOG <https://logbooks.jlab.org/book/hdlog> HDTRIGGER 
<https://logbooks.jlab.org/book/hdtrigger>
Entry Makers: 	somov

One of the problem with the missing FCAL triggers in
the trigger emulation can be due to the missing hits in
the reconstruction ( DFCALDigiHit ), which are present
in the evio file. May be I am using inconsistent
reconstruction version....

The energy in missing hits is above the trigger threshold.

FADC250 evio records (mode 8) for these hits seem to
be Ok (to be checked); the event header, least significant
bits of the trigger time, slot, channel, number of samples,
etc. are reported properly.

An example of hits not seen in the reconstruction:

Run 10386, event 5

roc slot channel
rocfcal1 14 0
18 8
19 12

rocfcal10 3 5

rocfcal9 3 12
17 9

rocfcal7 10 8

rocfcal6 18 14

---

Did someone connect any external sources
to rocfcal 4, slot 18, ch 15 (this channel
is supposed to be not used, but generate some
noise) ?



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