Re: [BLAST_SHIFTS] macro? for yield monitoring

From: Karen Dow (kdow@mit.edu)
Date: Thu Apr 01 2004 - 12:53:31 EST


The macro is actually yield_per_fill.C not yield_by_fill.C For lazy typers
who tab-complete, this probably wasn't a problem. But it tripped me up.

Karen

At 02:10 PM 3/31/2004 -0500, vitaliy ziskin wrote:
>Peter and all others,
>For now yield_by_fill.C. It is in the utils directory. One caviate
>though, as Karen said you need to update histogram limits as fill number
>grows. I will think about a work around but for now just update it every
>time you need to run it. Also, if there are any time cuts that I can use
>to cut on (e,e'p) and (e,e'd) events without using wirechamber info please
>let me know.
>
> Cheers, Vitaliy
>
>P.S. Please keep up with the crunching. This will allow me to use maximum
>number of events for my analysis.
>
>Peter Karpius wrote:
>
>>Which is(are) the best macro(s) to run while on shift to comply with
>>Richard's request?
>>
>> Pete
>>
>>---------- Forwarded message ----------
>>Date: Wed, 31 Mar 2004 05:30:55 -0500 (EST)
>>From: Richard Milner <milner@mitlns.mit.edu>
>>To: Tancredi Botto <tancredi@lns.mit.edu>
>>Cc: Blast_Shifts <Blast_shifts@rocko.mit.edu>, elog
>><elog@blast02.lns.mit.edu>
>>Subject: Re: [BLAST_SHIFTS] minutes BLAST operation meeting 30/3/04
>>
>>
>>Can we have each shift report in the shift summary the normalized rate
>>for the major events in the experiment? This requires establishing
>>canonical cuts for say (e,e'p) and (e.e'd). This is a vital quality
>>control parameter of the experiment. It will be sensitive to both target
>>thickness and wire chamber efficiency.
>>
>>Richard
>>
>>
>>
>>
>>On Tue, 30 Mar 2004, Tancredi Botto wrote:
>>
>>
>>
>>>Plan is to resume polarized data taking.
>>>Outstanding questions (still) are
>>>_ tensor ed asymmetry where there is an apparent disagreement
>>>between Genya and Chi. Presently the spin angle required to explain
>>>observed result by GT would be 60 deg which would only possible for a
>>>small long field. No report on false asymmetries, event by event
>>>correction to spin angle, montecarlo
>>>
>>>_ Dilution factor from tensor asymmetry in ee'p is now complarable
>>>with that from vector polarization. df~60 % in both sectors with a
>>>large error bar since it is onyl sensitive to the high pmiss region.
>>>See vitaly on thursday for a full report
>>>
>>>_ need to monitor ee'p events and correlate to ABS "fluctuations".
>>>Old monitor based on charge file would not work presently
>>>
>>>ABS:
>>>
>>>The ABS nozzle was temperature cycled. REady for data. The ligit monitor
>>>of the ABS intensity presently shows 5.1x10^-8 vs 6.3 this weekend (and
>>>6.0 last week ?). Genya also agrees that we may just have lower intensity.
>>>
>>>Lower ABS temperature to 82 K: will give 10 % density back and should
>>>be safe for D2 based on hermes experience.
>>>
>>>BEAM:
>>>A new set of steering coils have been installed. GT reports a lower beam
>>>lifetime (from 30 minutes). CCR will optimize beam tonight.
>>>
>>>LADS:
>>>Continued calibration work
>>>
>>>BATS:
>>>cosmic data taking
>>>
>>>RunPlan:
>>>After LADS and ABS we could remove wch and target covers. Plan is
>>>to resume pol D2 running, 3 spin states flipping... no beam spin
>>>flipper.
>>>
>>>
>>>
>>
>>
>



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