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[videbaek <videbaek AT bnl.gov>]

Hi Hongwei,
cc Xu

With the actual positions  the z range should rather be 148 to 182,
As Xu says you can ether use a square for the xy cut or maybe better a 
circle with radius say 36(40)

F.


On 2021-11-22 15:59, Xu Sun wrote:
> Hi Hongwei,
>
> The radius of the FST disk is about 31cm, therefore, I quote 40cm for
> both x and y.
> Not sure why Carl quotes y = 0, maybe Carl could comment.
>
> Best,
>
> Xu
>
> On Mon, Nov 22, 2021 at 3:57 PM Hongwei Ke <kehw AT rcf.rhic.bnl.gov>
> wrote:
>
> > Hi Xu,
> >
> > Carl’s number in his Nov 20 email to star-ops are a little
> > different.
> >
> > > Would it be possible for L4 to identify those events with a cosmic
> > > track that projects through the rectangle:
> > > -40 < x < +40
> > > 140 < z < 180
> > > At y=0
> >
> > Which one should I use?
> >
> > Best regards,
> > Hongwei Ke
> >
> > > On Nov 22, 2021, at 12:28 PM, Xu Sun <sunxuhit AT gmail.com> wrote:
> > >
> > > Hi Hongwei,
> > >
> > > As discussed in today's 10 clock meeting, please find the FST
> > > position below:
> > > x & y: -40 to 40 cm
> > > z: 140 to 180 cm.
> > >
> > > Hope this helps.
> > >
> > > Best,
> > >
> > > Xu
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Flemming Videbaek
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