MCNP Geometry Error

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The discussion focuses on modeling a 300x300x300 cm room in MCNP, specifically addressing issues with cell definitions in the Z plane. The original input deck was shared, and a suggestion was made to simplify the geometry for easier debugging. It was noted that the intersections on the left needed additional brackets to apply correctly to all union blocks. A revised version of the input deck was provided, which is believed to resolve the issue. The thread highlights the importance of proper syntax in MCNP geometry definitions for successful modeling.
MadGander
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MCNP cell definition help
Hello,

I'm attempting to model a 300x300x300 cm room in MCNP with a doorway and walk-in section, but I'm struggling with some of the cell definitions, particularly in the Z plane. I've attached the input deck below. It is fairly short, so it's probably going to be a relatively quick fix. Any help is appreciated.
 

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Hello again!

More objects but simpler is often easier to debug.

Code:
5 0 -1 6 -7 (2 -10 -5 4) :(10 -3 4 -8) :(10 -3 9 -5) imp:p 1  $ room
I think you were expecting the intersections on the left to apply to all of the union blocks, but this needs extra brackets.
Code:
5 0 -1 6 -7 ((2 -10 -5 4) :(10 -3 4 -8) :(10 -3 9 -5)) imp:p 1  $ room

I think this fixes it.
 
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