solder for UHV

Is there an electron microscope lab in your department? If so, how would they do it?

(Maybe they'll do it for you.)

Lakeshore have some application notes regarding use and installation

Don't use copper feedthroughs! You're actually going to have 6 junctions in series instead of only 2, if you do that. You can get UHV thermocouple feedthroughs specially made for this. Your best bet for connections in UHV is spot welding rather than soldering, if you can do it.

Cheers,

Phil Hobbs

I've had another thought: are you really going to be trying to measure temperatures of 10K with a thermocouple? Wouldn't a thermistor with a negative temperature coefficient be better for that?

According to my experienc we welld thous two wites with arc or spark. without any additional oxide preventing materials. We just path through the wires a spark directly on the contact between them. The spark was generatad in open aire using potential of severals KV.

According to my experienc we welld thous two wites with arc or spark. without any additional oxide preventing materials. We just path through the wires a spark directly on the contact between them. The spark was generatad in open aire using potential of severals KV.

According to my experienc we welld thous two wites with arc or spark. without any additional oxide preventing materials. We just path through the wires a spark directly on the contact between them. The spark was generatad in open aire using potential of severals KV.

replying to Nanoworld, PHYSIKE wrote: please see followed URL