A spontaneous desorption‐based polyatomic ion source Academic Article uri icon


  • We describe an ion source based on the spontaneous desorption process. The production, acceleration, and separation processes allow for the production of keV energy polyatomic ions while maintaining a high signal-to-background ratio. Both atomic and polyatomic ions with up to 37 keV energy were generated. Because the spontaneous desorption process is naturally pulsed, the ion source was attached to a dual time-of-flight mass spectrometer for secondary ion mass spectrometry experiments. In this article, we describe the design of both the polyatomic ion source and the mass spectrometer.

author list (cited authors)

  • Yau, A. Y., Park, M. A., Kaercher, R. G., & Schweikert, E. A.

citation count

  • 5

publication date

  • July 1993