December 24, 2024, 11:16:15 AM
Forum Rules: Read This Before Posting


Topic: Low Vac SEM  (Read 4086 times)

0 Members and 1 Guest are viewing this topic.

Offline Mania28

  • Regular Member
  • ***
  • Posts: 13
  • Mole Snacks: +0/-0
Low Vac SEM
« on: September 01, 2006, 04:43:16 AM »
Hi,

I would like to know how a Low Vacuum (not low voltage) SEM works. Why needn´t the sample be sputtered?


Offline P

  • Full Member
  • ****
  • Posts: 638
  • Mole Snacks: +64/-15
  • Gender: Male
  • I am what I am
Re: Low Vac SEM
« Reply #1 on: September 01, 2006, 06:35:32 AM »

In the same way an optical mic would look at reflected light  -  the SEM looks at reflected electrons - the sample needs to be coated so that it will reflect the electrons.     :)    They usually use a fine layer of gold or platinum I believe.

Tonight I’m going to party like it’s on sale for $19.99!

- Apu Nahasapeemapetilon

Offline Mania28

  • Regular Member
  • ***
  • Posts: 13
  • Mole Snacks: +0/-0
Re: Low Vac SEM
« Reply #2 on: September 04, 2006, 04:23:47 AM »
In Low Vac SEM, the Sample needn´t be coated. That´s why I want to know the trick behind this.

Sponsored Links