Plasma vs vacuum

  • Thread starter haiha
  • Start date
  • #1
136
1

Main Question or Discussion Point

I used to work with a ICP instrument for a while. There's a phenomenon which I tried to explain but it seems not clear enough.
In the instrument, just imagine there are a vacuum chamber and a plasma torch. The vacuum chamber has an inlet with a diameter of about 1mm. If the plasma is off, the inlet is shut. Only when the plasma is on, the inlet is open and the vacuum can hold, otherwise, there's no vacuum. This vacuum is not so high, it's the intermediate stage.
I always thought plasma is high pressure, high temp, so it shoud elimilate the vacuum, but it does the opposite!.
Thanks for reading the thread.

HH
 

Answers and Replies

  • #2
russ_watters
Mentor
19,421
5,561
Plasma is high temperature, not necessarily high pressure.
 
  • #3
136
1
You are right, plasma may not be high pressure, but how can I explain that plasma can seal the vacuum hole?
 

Related Threads on Plasma vs vacuum

  • Last Post
Replies
12
Views
1K
  • Last Post
Replies
2
Views
9K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
6
Views
1K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
9
Views
12K
Replies
4
Views
726
Replies
2
Views
903
  • Last Post
Replies
14
Views
3K
  • Last Post
Replies
4
Views
1K
Top