Mark-- Good to know. Thank you. I have some silver coins that we'll try out on Monday. There's no grease or anything in the chamber, so perhaps my hunch is incorrect.
Richard-- Yeah, it's really cool to see the inverse square law in action. The shielding is an annoying formality (and an expensive one at that!). On the upshot, it will allow us to be a bit closer and operate in a smaller space. Also, given that this is a student-led project, it will provide a measure of safety if a student were to wander too close. The tungsten wire is 1mm in diameter. I'll check with the student who disassembled it to see if he has some insight into where it melted.
John-- we'll try some of that KOH for the tungsten. We had to open the chamber anyway to fix the tungsten that had melted out.
Rex-- thanks for the link!
I'll report back next week with our findings. Hopefully it will be a celebratory posting! Thanks all
So close... what gives?
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