Re: Scalers and other electronics for Hall D

["Fernando J. Barbosa" <barbosa@jlab.org>]

Elliott and Elton,

    So far, only the tagger, pair spectrometer and the start counter are 
listed as requiring scalers for a total of 12 scalar modules, if using 
the 32 channel SIS3800. Please refer to the summary document on the 
portal. Also, these scalers may be easily incorporated into the fADC-250 
FPGAs depending on the readout rates required.

Regards,
Fernando

Elton Smith wrote:
> Hall D Electronics:
>
>
> HI Elliott,
>
> This might be good to hash out during the upcoming electronics meeting. We
> need to decide first whether these are needed, and if so, which budget
> sheet to add them to. It also seems like many of our most recent
> electronics boards have added scalers which enhance their utility as well
> as reduce overall cost of additional electronics boards. This could also
> be considered for some of our custom boards.
>
> Cheers, Elton.
>
>
>
>
>
>
> Elton Smith
> Jefferson Lab MS 12H5
> 12000 Jefferson Ave
> Suite # 16
> Newport News, VA 23606
> elton@jlab.org
> (757) 269-7625
>
> On Thu, 15 Mar 2007, Elliott Wolin wrote:
>
>   
>> Dear Elke and/or Elton,
>>
>> What did we decide about scalers for the trigger and other systems, misc. other trigger
>> electronics, etc?  They seem to be part of the readout or monitoring systems for the
>> various detector subsystems, and they get read out by the DAQ just like the readout
>> electronics, so it seems like they should be part of the detector subsystems (esp. the
>> trigger).  But I do not see them in any detector budget sheets.
>>
>> What should we do about them?
>>
>>
>> 				Sincerely,
>> 					Elliott
>>
>>
>> ================================================================================
>>
>>
>>   Those raised in a morally relative or neutral environment will hold
>> 		    no truths to be self-evident.
>>
>>
>> Elliott Wolin
>> 12000 Jefferson Ave MS 12H5
>> Newport News, VA 23606
>> 757-269-7365
>>
>> ================================================================================
>>
>>
>>     
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