geometry problem

Dear fluka experts,

I am having a problem with a very simple setup: BaF hexagonal prisms in
hexagonal lattice. There are only 7 of them, the central one and prisms
around.
Somehow I cannot set this up. I was trying to copy'n'paste the central
module with LATTIC/ROT-DEFI cards, but then I have read that I would
have to define the geometry to which I want to copy the initial module
so that it exactly fits the copied thing. So I quit doing this, although
I do not know if I understood this correctly. Maybe this could be done
after all ?
I then started to define all necessary PLA planes to describe the setup.
At each step I am trying to plot what I have just added. This worked
well until the number of prisms was 4 (central+3 around), for the fifth
prism FLUKA needed considerably longer time to plot it. Adding another
prism breaks the core. If I comment out at the same time some other
prism, so that the total number is 4, they plot fine. Even without
plotting, FLUKA won't calculate anything.
Can somebody suggest a solution ?

I include my input file. I know that some planes are defined twice,
correcting this does not solve the problem.

Thank you,
Mitja

TITLE
BaF cluster
GLOBAL 1.0 1.0
DEFAULTS
NEW-DEFA
BEAM -.1 10.0 0.0
-1.0NEUTRON
BEAMPOS 0.0 0.0 -5.
GEOBEGIN
COMBNAME
     0 0
* Black body
SPH blkbody 0.0 0.0 0.0 10000000.0
* Void sphere
SPH void 0.0 0.0 0.0 1000000.0
XYP front 0.0
XYP back 25.
XZP ce_1 2.95
PLA ce_2 0.8660254 0.5 0.0 3.40636659 0.0 0.0
PLA ce_3 0.8660254 -0.5 0.0 3.40636659 0.0 0.0
XZP ce_4 -2.95
PLA ce_5 -0.8660254 -0.5 0.0 -3.40636659 0.0 0.0
PLA ce_6 -0.8660254 0.5 0.0 -3.40636659 0.0 0.0
XZP ur_1 5.95
PLA ur_2 0.8660254 0.5 0.0 6.8993357 5.95 0.0
PLA ur_3 0.8660254 -0.5 0.0 6.8993357 0.05 0.0
XZP ur_4 0.05
PLA ur_5 -0.8660254 -0.5 0.0 3.492969 0.05 0.0
PLA ur_6 -0.8660254 0.5 0.0 3.492969 5.95 0.0
XZP lr_1 -0.05
PLA lr_2 0.8660254 0.5 0.0 6.8993357 -0.05 0.0
PLA lr_3 0.8660254 -0.5 0.0 6.8993357 -5.95 0.0
XZP lr_4 -5.95
PLA lr_5 -0.8660254 -0.5 0.0 3.492969 -5.95 0.0
PLA lr_6 -0.8660254 0.5 0.0 3.492969 -0.05 0.0
XZP lo_1 -3.05
PLA lo_2 0.8660254 0.5 0.0 1.703183 -3.05 0.0
PLA lo_3 0.8660254 -0.5 0.0 1.703183 -8.95 0.0
XZP lo_4 -8.95
PLA lo_5 -0.8660254 -0.5 0.0 -1.703183 -8.95 0.0
PLA lo_6 -0.8660254 0.5 0.0 -1.703183 -3.05 0.0
XZP ll_1 -0.05
PLA ll_2 0.8660254 0.5 0.0 -3.492969 -0.05 0.0
PLA ll_3 0.8660254 -0.5 0.0 -3.492969 -5.95 0.0
XZP ll_4 -5.95
PLA ll_5 -0.8660254 -0.5 0.0 -6.8993357 -5.95 0.0
PLA ll_6 -0.8660254 0.5 0.0 -6.8993357 -0.05 0.0
XZP ul_1 5.95
PLA ul_2 0.8660254 0.5 0.0 -3.492969 5.95 0.0
PLA ul_3 0.8660254 -0.5 0.0 -3.492969 0.05 0.0
XZP ul_4 0.05
PLA ul_5 -0.8660254 -0.5 0.0 -6.8993357 0.05 0.0
PLA ul_6 -0.8660254 0.5 0.0 -6.8993357 5.95 0.0
XZP up_1 8.95
PLA up_2 0.8660254 0.5 0.0 1.703183 8.95 0.0
PLA up_3 0.8660254 -0.5 0.0 1.703183 3.05 0.0
XZP up_4 3.05
PLA up_5 -0.8660254 -0.5 0.0 -1.703183 3.05 0.0
PLA up_6 -0.8660254 0.5 0.0 -1.703183 8.95 0.0
END
* Black hole
BLKBODY 15 +blkbody -void
* Void region
VOID 15 +void
                -( +ce_1 +ce_2 +ce_3 -ce_4 +ce_5 +ce_6 -front +back )
                -( +ll_1 +ll_2 +ll_3 -ll_4 +ll_5 +ll_6 -front +back )
                -( +ul_1 +ul_2 +ul_3 -ul_4 +ul_5 +ul_6 -front +back )
                -( +up_1 +up_2 +up_3 -up_4 +up_5 +up_6 -front +back )
                -( +ur_1 +ur_2 +ur_3 -ur_4 +ur_5 +ur_6 -front +back )
                -( +lo_1 +lo_2 +lo_3 -lo_4 +lo_5 +lo_6 -front +back )
                -( +lr_1 +lr_2 +lr_3 -lr_4 +lr_5 +lr_6 -front +back )
* Target
TG_CE 15 +ce_1 +ce_2 +ce_3 -ce_4 +ce_5 +ce_6 -front +back
* Target
TG_UR 15 +ur_1 +ur_2 +ur_3 -ur_4 +ur_5 +ur_6 -front +back
* Target
TG_LR 15 +lr_1 +lr_2 +lr_3 -lr_4 +lr_5 +lr_6 -front +back
* Target
TG_LO 15 +lo_1 +lo_2 +lo_3 -lo_4 +lo_5 +lo_6 -front +back
* Target
TG_LL 15 +ll_1 +ll_2 +ll_3 -ll_4 +ll_5 +ll_6 -front +back
* Target
TG_UL 15 +ul_1 +ul_2 +ul_3 -ul_4 +ul_5 +ul_6 -front +back
* Target
TG_UP 15 +up_1 +up_2 +up_3 -up_4 +up_5 +up_6 -front +back
END
GEOEND
* ..+....1....+....2....+....3....+....4....+....5....+....6....+....7..
ASSIGNMA BLCKHOLE BLKBODY
ASSIGNMA VACUUM VOID
ASSIGNMA COPPER TG_CE TG_UP
RANDOMIZ 1.0
START 1D5
STOP
Received on Wed Jul 08 2009 - 21:58:39 CEST