[BTeam] DB/DJ replacement

[Jay Benesch]

Mike,

A shorter version of the MAT with steel return and larger ID would work 
as well. DB/DJ replacement has to fit over the BPM can, so >= 2.75". MAT 
has slightly more quad Fourier component than this design but not enough 
to matter.   I simply had this design in progress and checked to see if 
it would work.

The injector DB/DJ pairs must remain as is due to space constraints but 
the linac units could be replaced.

Jay

On 10/22/19 9:34 AM, Michael Tiefenback wrote:
> Jay,
> Why not simply upgrade the AT style windings a bit and overlay them 
> where we want X/Y control?  It should be possible.  It might even be 
> useful to install an iron flux return shell, but I'm not certain about 
> distortions.  Is there something wrong with this?
> Michael
> 
> ------------------------------------------------------------------------
> *From:* BTeam <bteam-bounces at jlab.org> on behalf of Jay Benesch 
> <benesch at jlab.org>
> *Sent:* Tuesday, October 22, 2019 09:07
> *To:* BTeam <bteam at jlab.org>
> *Subject:* [BTeam] injector DB/DJ
> I checked archiver for currents and made an elog
> https://logbooks.jlab.org/entry/3735815
> 
> All but MDB0L06H were within [-2,2]A range at 120 MeV/c.  There's no
> spare length on the 0L girders so these five pairs must remain as is.
> That leaves 15 in the linacs that might be replaced and 3? for the
> injector group.  Buy 20 of the new design?
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