SURFACE-STRUCTURE INVESTIGATIONS USING PLASMA DESORPTION MASS-SPECTROMETRY AND COINCIDENCE COUNTING
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Coincidence counting techniques were used to study the plasma desorption of ions from a polycrystalline sample of Zirconium bis(monohydrogen orthophosphate)monohydrate (ZrP). Using coincidence counting in conjunction with time-of-flight (TOF) mass analysis, it was possible to obtain secondary ion spectra with a signal to background ratio a factor of ten better conventional TOF alone. It also was possible to produce a spectrum of SI that were desorbed in coincidence with PO-3 (characteristic of the ZrP). Cluster ions observed in this spectrum are related to the ZrP crystal structure. This supports a direct emission process for cluster ion production and demonstrates the utility of particle induced desorption in the determination of surface and crystal structure. 1993.
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES
author list (cited authors)
VANSTIPDONK, M., PARK, M. A., SCHWEIKERT, E. A., SYLVESTER, P., & CLEARFIELD, A.
complete list of authors
VANSTIPDONK, M||PARK, MA||SCHWEIKERT, EA||SYLVESTER, P||CLEARFIELD, A