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[Xu Sun <sunxuhit AT gmail.com>]

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