[G14_run] Natalie's talk at 10-12-12 meeting

[A.M. Sandorfi]

We used a 2.6 mm collimator. My understanding is that this was the same one
used for the g9 runs which produced a spot on target of about 10 mm. We made
the target cells 15 mm ID to avoid hitting the cell walls.

Andy


On 10/17/12 12:47 PM, "Reinhard Schumacher" <schumacher at cmu.edu> wrote:

> Hi Natalie,
> I liked looking through the slides of your talk last Friday, the one at
> the Collaboration meeting I missed.  There is some interesting new material.
> 
> My immediate question is about slide 13 showing a measurement of the
> beam line transmission function, based, I assume, on an analysis of the
> TAC data from a normalization run.  Why is the transmission efficiency
> as small as 35%?  For g1c and g11 the transmission fraction was much
> larger.  Is it because of the size of the collimator?  If that is the
> case, why did we use such a small collimator?
> 
> Anyone can comment on this of course, not just Natalie.
> 
> Cheers,
> Reinhard
>