Geometry modeling of an X-ray Irradiator

[Hamidul]

TL;DR

This thread is about question of geometry of X-ray irradiator.

Hello, I am designing an X-ray irradiator with MCNP simulation. But I am still in confusion, whether my X-ray housing will be a box or a cylinder. If the box (macrobody identifier of MCNP) is required, I am trying to match the dimension as that of the cylinder, i,e, the height will be that of the cylinder height, and the other two dimensions will be that of the radius of the cylinder (surface 52 and 53). Can anybody please help me define the surfaces? Below is my attached text file. Forgot about the material card and all of the data card. Right now, I am only doing the geometry section. If possible, please suggest to me how to improve my data card, too.

 

[Hamidul]

Here is the code.

 

[gleem]

Do you want to use the results of a square cross-section irradiator silmulation to use to build a cylindrical one?