Well, the NBLE triggers the fission and I want it to be manual.
The tricky part with making these is making sure the HYGN fuses before combusting.Surronding it in NBLE,which is also fusible,helps since it creates additional heat and pressure to help fuse the hydrogen.
There. It should be good now.
These are tricky to build. You're going to need a lot more CRMC between the PLUT bomb and the HYGN to delay the fission heat enough to make the HYGN fuse instead of burn (it needs to be at 50 pressure before it gets to 2000 C) and you have to encase the whole thing in a thin layer of TTAN to concentrate the pressure enough.
you should replace the entire HYGN with the bcln as all of it combusts before fusing