Hello everyone! Nowadays, I try to use DRAGON to make some neutronics researches. But I can not build the hexagonal geometry with cluster. I have to use the 'HEX' and 'HEXT' keyword with 'CLUSTER', but I only know the RPIN and APIN. Then the geometry which generated is not i want, just like the figure 1. The pin units in the figure 1 are arranged in circle.

So is there anyone can use the DRAGON code to generate the geometry which is shown is figure 2?

The Figure 1 with its DRAGON input and Figure 2 are in the attachments.

Thanks!