Re: Tagger interfaces

[Tim Whitlatch <whitey@jlab.org>]

Hi Sascha,

We will fix the downstream flange to be perpendicular to the electron beam.

Where exactly should the quadrupole go in relation to the dipole?

Cheers,

       Tim

Alexander Somov wrote:
> Hello Tim,
>
> I looked on the drawing:
>
> -The positions of a dipole magnet and
> fixed array counters (the first and last counters) seem
> to be correct (+- few mm).
>
> -the exit flange (end plate) of the vacuum chamber has to
> be modified a little bit; as we have discusses the plate should go 
> perpendicular to the electron beam (I will check with
> James). The electron beam going to the dump seems to be at the
> right position from the egde of the vacuum chamber.
>
> -the quadrupole magnet has not been moved
>  (in the MC it's placed downstream the beam) (?)
>
> Cheers,
>       Sascha
>
>
>
>
>
> On Tue, 24 Feb 2009, Tim Whitlatch wrote:
>
>> Hello all,
>>
>> The updated (Feb 23, 2009) tagger interface drawings are now posted 
>> on the wiki @
>>
>> http://www.jlab.org/Hall-D/software/wiki/index.php/Tagged_Beam_Group_Engineering_Drawings 
>>
>>
>> sheets 1 and 2
>>
>> Please have a good look at these. Pay close attention to the quad 
>> location, distance to scintillators and downstream window. Please let 
>> me know if these meet the current requirements. We will then release 
>> this version so the machine group can use these positions.
>>
>> Cheers,
>>
>>      Tim
>>
>>