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Hi Kyle,

In terms of L0, this should be simple since we are just adding a few silicon sensors. You can look at the compact files for any of the latest L0 detectors: HPS-Proposal2017-L0-v3-*-fieldmap

I think the only change here is changing the tracker type from here: <detector id="1" name="Tracker" type="HPSTracker2014" readout="TrackerHits">

to here: <detector id="1" name="Tracker" type="HPSTracker2017" readout="TrackerHits">

Let me know if this works.

Matt Solt
________________________________________
From: [log in to unmask] <[log in to unmask]> on behalf of Nathan Baltzell <[log in to unmask]>
Sent: Tuesday, November 7, 2017 4:32 PM
To: Kyle McCarty
Cc: hps-software
Subject: Re: Finalizing Hodoscope Geometry

Hi Kyle,

On the second point, I’m pretty sure all you need is “ecal_dface” in compact.xml, e.g. line 47 here:

https://github.com/JeffersonLab/hps-java/blob/master/detector-data/detectors/HPS-EngRun2015-Nominal-v6-0-fieldmap/compact.xml

-Nathan



> On Nov 7, 2017, at 5:21 PM, Kyle McCarty <[log in to unmask]> wrote:
>
> Hello hps-software,
>
> We are working to finalize the hodosocpe geometry, but there are a few remaining steps I wanted to ask about.
>
> First, we would like to integrate the L0 changes into the hodoscope geometry. What do I need to do to include this? I assume it is just a matter of swapping some references around, since L0 should not directly intersect with the hodoscope.
>
> Second, we would like to move the calorimeter back by 50 mm. Is there a parameter in the calorimeter geometry XML that allows us to do this, or does this need to be changed in the code?
>
> Lastly, we need to integrate the hodoscope support structure into the geometry. Is there someone who can help with this? The modeling complexity for the support structure is a bit beyond my skills.
>
> Thanks,
>
> Kyle
>
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