[Halld-pid] Fwd: Re: CAEN VX1290 and DAQ compatibility

[Eugene Chudakov]

The TOF is equipped with FADCs along with the TDCs.
The FADCs can be used for the trigger (I am not sure about the TDCs).
But indeed, at the moment we are not planning to use the TOF signals
in the trigger.

Eugene

On Fri, 10 Feb 2012, Elton Smith wrote:

>
>
> Hi Paul et al.,
>
> The note from Chris below, from what I can tell, addresses only the issue of 
> integrating the TDCs into the readout (i.e receiving trigger signals, gates, 
> etc), but not the use of the TDCs as inputs to the trigger. From the 
> beginning the tof were considered to be used as inputs to the trigger, but I 
> know that Sasha's simulation showed that calorimeter inputs may be 
> sufficient. However, I don't know if we want to eliminate this option, or at 
> least this should be considered in the decision.
>
> Cheers, Elton.
>
> Elton Smith
> Jefferson Lab MS 12H5
> 12000 Jefferson Ave
> Suite #16
> Newport News, VA 23606
> (757) 269-7625
> (757) 269-6331 fax
>
>
> On 2/10/12 2:04 PM, Paul Eugenio wrote:
>> Hi,
>> 
>> I copied below a message from Chris regarding using the CAEN TDC in the 
>> trigger.
>> 
>> 
>> 
>>>> 
>>>> The good news is that a fanout board has been developed that distributes 
>>>> the clock from our Trigger Interface (TI) board to a V1290 TDC.  This way 
>>>> there is no need to modify the commercial (CAEN) boards, and the signal 
>>>> integrity of the fanout board has been tested with a full crate, using 
>>>> the front panel clock/trigger connection. (Hall B - Sergey B.)  The TI 
>>>> can be used in a '64x crate and it makes sense to use a '64x crate in 
>>>> this instance, because the VXS crate features would not be used by the 
>>>> CAEN TDC.  If you wanted to use other JLAB VXS payload modules in lets 
>>>> say half the crate, you could still use the CAEN TDCs with the front 
>>>> panel clock/trigger fanout from the TI.
>>>> 
>>>> I have copied William Gu on this message since he was the designer of 
>>>> this fanout module and will have the latest documentation.
>>>> 
>>>> Keep me posted,
>>>> -Chris
>>> 
>> 
>> 
>> 
>> 
>> 
>> --
>> Prof. Paul Eugenio
>> Florida State University
>> Department of Physics
>> Tallahassee, Florida,  USA 32306
>> 
>> (850) 325-0314
>> eugenio at fsu.edu <mailto:eugenio at fsu.edu>
>> 
>> 
>> 
>> 
>> On Feb 3, 2012, at 4:50 PM, Elton Smith wrote:
>> 
>>> HI all,
>>> 
>>> I do not think the CAEN TDCs can be integrated into the trigger, which
>>> could be useful.
>>> 
>>> Cheers, Elton.
>>> 
>>> Elton Smith
>>> Jefferson Lab MS 12H5
>>> 12000 Jefferson Ave
>>> Suite #16
>>> Newport News, VA 23606
>>> (757) 269-7625
>>> (757) 269-6331 fax
>>> 
>>> 
>>> On 2/3/12 4:31 PM, Elliott Wolin wrote:
>>>> Hi,
>>>> 
>>>> Use of this board in the Hall D DAQ will have to be carefully
>>>> coordinated with Fernando, and with Alex if it will be part of the
>>>> trigger system or if there are unusual requirements for delivering the
>>>> trigger to it.
>>>> 
>>>> Further, if we decide to use it someone will have to present the full
>>>> plan and board details to the Online group.
>>>> 
>>>> Thanks,
>>>> 
>>>> 
>>>> On 02/03/2012 04:23 PM, Mark M. Ito wrote:
>>>>> Folks,
>>>>> 
>>>>> Just talked to Dave Abbott of the DAQ group. He says there is no
>>>>> impediment to using the CAEN VX1290 in our data acquisition. It supports
>>>>> event blocking, and they have a way of distributing trigger signals to a
>>>>> crate of boards of this type. He cautions against mixing these TDC's
>>>>> with other types of boards in the same crate for efficiency reasons.
>>>>> 
>>>>> Hall B will be using these TDC's and support for their use in CODA-based
>>>>> systems is already in the plan.
>>>>>
>>>>>     -- Mark
>>>>> 
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>> 
>> 
>> 
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