Hey there,
been a long time since I started this, now I finally "finished" it. What you can see in the pictures is a needle during triggering and afterwards, the needle didn't only get hot but blew away. although it is not powered by a single 9V block it sure is possible to charge it by battery. I declare: Concept proven 
The energy that was consumed to blow up the needle was approximately 60J as you can see the capacitor bank is still a bit charged, before triggering it, it was at ~30V.
