BgsSvtSim: status

Geometry

• As a first attempt to derive the SVT geometry from the conditions database, I've tried writing a simple global layout proxy which should allow one to access basic geometry info (such as module and wafer positions and orientations). The idea is to "unfold" this layout object in a dedicated module (for example, in BgsSvtGeom) and get all the info that was formerly provided by the dbio interface.



• Problems:
  • This way of getting the geometry from the database probably requires some changes in the structure of Bogus itself -- in particular, in Bogus classes that rely on the dbio system, such as BgsEnv or BgsDetectorConstruction. At the moment, while BgsSvtSim compiles and linkes with the database includes, Bogus itself does not.

Resolution parametrization in downstream module

• This note describes how resolution parametrization is done in SVT reconstruction. Basically, the resolution for a given layer and side is determined empirically as a function of cluster width. One might consider adapting this method for parametrizing the resolution in the downstream module. This kind of parametrization is rather straightforward, but it has its disadvantages (mentioned in the note).