[Gate-users] Hexagon(e) specification

[Alan J Green]

When modelling a gamma camera collimator the first hole is specified:

/gate/collimator/daughters/name hole
/gate/collimator/daughters/insert hexagone
/gate/hole/geometry/setLength 6.0 cm
/gate/hole/geometry/setRadius .381 cm

(it's a HEGP collimator)

I think the radius is the radius of the circumscribed (rather than 
the inscribed) circle; can anyone who knows confirm this (or correct 
it), please?

With thanks
Alan

Dr Alan J Green
Senior Lecturer
Cancer Research UK Targeting and Imaging Group
UCL
Tel (+44) (0)20 7472 6373
Fax (+44) (0)20 7794 3341