rotate cryostat steel structure in protodune-vd driftx geometry

[thkosc]

Following header comment of file generate_protodunevd_v4_refactored.pl, I rotated the steel structure of the cryostat. As for now, protodune-vd with drift along x used a non-rotated cryostat (same as protodune-hd) with walls pushed a little bit to avoid overlaps with inside components (because protodune is less high than large).
The latter had become incompatible with the CRT pannels included later (v3), as CRTs were located inside the cryostat.
I also added header comment to explain the few changes.

I'm attaching with the pull request a script file to draw the gdml geometry files. It can be compiled and executed in a root session, with the file name as argument (I think package root-geom must be installed). Ht escript has extension 'txt' because github won't accept the '.C' extension, so you just need to change the extension manually.

This geometry now has 3 overlaps which are all beam related. I'm getting in touch with the beam experts to solve this.

drawProtoDune.txt

[tomjunk]

I was able to reproduce the overlap check:

root [1] gGeoManager->Import("protodunevd_v4_refactored_nowires.gdml");
root [2] gGeoManager->CheckOverlaps(0.1);
Info in TGeoNodeMatrix::CheckOverlaps: Checking overlaps for volWorld and daughters within 0.1
Check overlaps: [==========] 2625 [100.00 %] 00:00
Info in TGeoNodeMatrix::CheckOverlaps: Number of illegal overlaps/extrusions : 3

root [3] gGeoManager->PrintOverlaps();
=== Overlaps for Default ===
= Overlap ov00000: volCryostat extruded by: volCryostat/volBeamPlIIUSCap_0 ovlp=19.5539
= Overlap ov00001: volCryostat extruded by: volCryostat/volBeamPlIIMod_0 ovlp=19.202
= Overlap ov00002: volDetEnclosure/volSteelSupport_RS overlapping volDetEnclosure/volBeamPipe_0 ovlp=7.37784

converting this PR to a draft so we don't accidentally merge it.

[wyjang-uta]

Hi developers and reviewers, I'm just knocking on the doors of some of our older PRs to see if there are any ongoing activities. Is there any plan to move this one forward?

[thkosc]

Hi all, I’m sorry I am no longer involved in the DUNE collaboration, and I cannot tell whether this PR is still relevant or not. Probably not… At the time I was developing a protodune-VD geometry with a drift along the Y axis, and I remember spending time in rotating all the relevant structures, including the cryostat. But I do not know the follow-up there has been for the 2 pasr years on this question, so I would suggest to get in touch with the protodune-VD software team and ask them if this is still relevant or not. Best wishes Thomas Kosc

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On 16 Mar 2026, at 17:51, Wooyoung Jang ***@***.***> wrote: wyjang-uta left a comment (DUNE/dunecore#99) <#99 (comment)> Hi developers and reviewers, I'm just knocking on the doors of some of our older PRs to see if there are any ongoing activities. Is there any plan to move this one forward? — Reply to this email directly, view it on GitHub <#99 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AV6UGTC5H3ECUF5CM4IFDQD4RAWH3AVCNFSM6AAAAACWTTSLHSVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHM2DANRZGEZDCMZTHA>. You are receiving this because you authored the thread.