×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Auger Electron Spectroscopy

Auger Electron Spectroscopy

Auger Electron Spectroscopy

(OP)
Does anyone knows what Auger Electron Spectroscopy is?
and where could I find more information regarding this matter?
Thank you.

RE: Auger Electron Spectroscopy

Auger is a technique that uses a high voltage electron gun in a vac.  The sample is bombarded with high energy ions, usually argon, in order to knock atoms loose from the surface.  The atoms are analysed as they are knocked loose and you can get a chemistry vs depth profile.
Any good reference on analilitical methods that covers SEM and such should cover Auger.

It is a tricky tool.  The atoms don't all come off of the surface with the same efficency and the detection system isn't perfect.  There is a lot of data massaging required to get a real profile.

= = = = = = = = = = = = = = = = = = = =
Corrosion never sleeps, but it can be managed.
http://www.trenttube.com/Trent/tech_form.htm

RE: Auger Electron Spectroscopy

Auger Electron Spectroscopy does not liberate atoms, it liberates electrons.  Here is a description from an instrument manufacturer:

http://www.phi.com/genf.asp?ID=281

A Google search yields plenty of information.

Regards,

Cory

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.

RE: Auger Electron Spectroscopy

No, you are actually removing metal.  That is how you get a depth profile.  You are detecting electrons.  The surface becomes very rough because not all elemnets are removed at the same rate.

= = = = = = = = = = = = = = = = = = = =
Corrosion never sleeps, but it can be managed.
http://www.trenttube.com/Trent/tech_form.htm

RE: Auger Electron Spectroscopy

CoryPad has it exactly right.Auger ELECTRONS are emitted.

RE: Auger Electron Spectroscopy

EdStainless,

Auger Electron Spectroscopy as a technique does not liberate atoms, only electrons (and low energy ones at that).  Depth profiling is accomplished by adding another technique, the most popular being ion milling (usually using Ar+ ions).

Regards,

Cory

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources