From: gronstal_at_creighton.edu
Date: Fri Mar 07 2003 - 12:18:37 EST
What value do you want the yellow and red alarms at then. Tell me and Ill
make it so.
Currently for all 4 channels (A+, A-, B+, B-):
Yellow if Iread > 200
Red if Iread > 500
steve
On Fri, 7 Mar 2003, W.J. Llope wrote:
>
> hi steve,
> yesterday evening there was a note in the shift log
> about tofr currents "going yellow"
> http://online.star.bnl.gov/apps/shiftLog/logForDay.jsp?day=3/6/2003
> see entry 19:30
>
> anyway, the shift crew correctly interpreted this as "not a problem"
> since other backgrounds in star were quite high at that time.
> tofr's currents went down again shortly thereafter, as they always do...
>
> i called the control room and described all this to carl (shift leader
> then) but this isn't noted in the shift log...
>
> the question is: maybe the setting of 200 for tofr HV
> going yellow is too tight?
>
> we don't want tofr to be alarming at the beginnings of spills.
> we already know tofr can see a fearsome rate at those times,
> and the detector recovers perfectly each time as soon as
> the spill calms down...
> so these high-intensity periods (~5min) when there are new
> spills should not trigger tofr alarms... that would just
> distract the shift crew (and there's not really any problem there)...
>
> maybe increase this setpoint? (and for the red too?)
>
> comments anyone? thanks
> bill
>
>
> At 2:18 PM -0600 3/6/03, gronstal_at_creighton.edu wrote:
> >TOF has its own link added now. Let me know of any further things that
> >can be done for the TOF system.
> >
> >steve
>
>
> --
>
> W.J. Llope, Ph.D. Res. Assoc. Professor
> T.W. Bonner Nuclear Laboratory phone: 713-348-4741
> Rice University, MS-315 fax: 713-348-5215
> 6100 S. Main St.
> Houston, TX 77005-1892
> e-mail: llope_at_physics.rice.edu
> WWW home: http://wjllope.rice.edu/default.html
>
> --
>
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