Proton Induced X-Ray Emission

By:

Christopher Ray

Basic Principle

• Excite cell with stream of protons

• Cell is scattered

• Cell seeks to return to stable energy state by releasing energy and bring back scattered components

Basic Principle

Basic Principle

• These emissions can be identified and traced back to specific elements

• This process does no damage to the subject atoms

Practical Applications

• Trace elements in art can be identified

• Individual metals can be identified within composite metal pieces

Practical Applications

• Detection of impurities or contaminants