> ###> taking a closer look: Juliette is using a different z position for collimator 3 than
>      I had extracted last November (region2 was stucking in the MainMagnet structure), where I pushed
>      colli #3 as close to the MainMagnet as Stan would allow me (5cm gap requested). 


Center z position of collimator #3:

- Juliette/Geant3 : ...and the third collimator is 7.62 cm thick, centered at -259.24 cm from the main torus. 
                     ( taken from http://www.phys.vt.edu/~jmammei/geant_geometry_summary.html , March 2005)

- Klaus/SolidWorks :  centered at -264.59 cm with a total thickness of 2*7.62 cm  (November 2004)
   Geant4


Taking a look into the minitorus.euclid (http://www.phys.vt.edu/~jmammei/minitorus_geant/minitorus.euclid)

Colli #1: VOLU 'CCUO' 'CONE' T_LEA 5 10.16 25 40.09 30. 40.09
Colli #2: VOLU 'CDCI' 'CONE' T_LEA 5 7.62 14.55 32. 14.55 33.
Colli #3: VOLU 'CDCP' 'CONE' T_LEA 5 7.62 95. 120. 100 120.
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                                       V   
==> according to Geant3: parameter is the half length in z, means the thickness in z is twice ...
    Means that Juliette's geomemtry_summary text is wrong.

===> According to SolidWorks for colli #3: z=-259.24 AND thickness of 2*7.62 cm: quasi no gap !!!


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SolidWorks pic from Nov, units are in mm).

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