Message: Toroidal Mirror with unphysical radii Not Logged In (login)
 Next-in-Thread Next-in-Thread
 Next-in-Forum Next-in-Forum

None Toroidal Mirror with unphysical radii 

Keywords: torus geometry invalid swept radius
Forum: Geometry
Date: 13 Feb, 2007
From: Whitney Armstrong <>

I am trying to construct a Toroidal shaped mirror using G4Torus. The problem is that the "Tube Radius" is bigger than the Swept radius. This is not a problem physically because I intend to only use a small portion of the outside of it where it is quite close to a spherical mirror. The problem is that I get the


ERROR - G4Torus()::SetAllParameters(): Toroidal Mirror geometry
        Invalid swept radius !
pRtor = 258, pRmax = 861

Would it be OK for me to edit the geant code for G4Torus and to remove this check that is causing me problems, given that I am going to remove most of the toroidal geometry through an intersection with another volume?

Is this going to cause any unforeseen problems even if this is the only instance of G4Torus?

Thank you in advance -Whitney

Inline Depth:
 1 1
 All All
Outline Depth:
 1 1
 2 2
 All All
Add message: (add)

1 None: Re: Toroidal Mirror with unphysical radii   (Vladimir Grichine - 13 Feb, 2007)
 Add Message Add Message
to: "Toroidal Mirror with unphysical radii"

 Subscribe Subscribe

This site runs SLAC HyperNews version 1.11-slac-98, derived from the original HyperNews

[ Geant 4 Home | Geant 4 HyperNews | Search | Request New Forum | Feedback ]