picture of the all the naughty bits inside a B61... (Supposedly)
Just guessing what I'm looking at... And partially fishing for tasty recipes...
Clockwise from 12:00...
1- primary pit... Most likely a boosted weapon so there would be some tritium gas or something in there..
2- gold ball.. Neutron reflector? Gold plated beryllium maybe..
3- tamper / pusher... (Bowl with holes) maybe secondary blast shield..
4 & 5 - bowl shaped objects... Pusher/tamper or neutron reflectors... Could be anything from beryllium, steel, aluminum or u-235
6- large gold ball on left... Primary neutron reflector.. 2 small holes are for the neutron source I would guess.. It's a dail-a-yield so multiple sources would be needed.
7- all the cylinder things in the middle would make up the secondary... Thicker hollow cylinder u-238 and would be filled with lithium-6 and the Pu-239 "spark plug" would go inside... Spark plug may be the smaller diameter chunk middle right.. The other cylinder shaped objects most likely make up some part of the secondary shield or are some kind of mechanism to keep the secondary from firing when the yield is dialed low..
8- snowflake looking washer things... Don't know.. Maybe to keep the pit levitated and designed to help control / spread neutrons...
That should be good for at least an appetizer and main course....