“…The ease of sample handling, the reduction of charging effects and the potential increase in beam current have for some time been recognized as advantages to be achieved by bringing the ion beam out of the accelerator and into the air (or into a helium atmosphere). Shroy and his colleagues (14) use a differential pumping system to allow a windowless exit port to be used and offer an example in which the background is relatively two orders less than that obtained with an SEM/EDS system. Fou et al (15) use a system with a hole down to 10-µ diameter for the beam to pass into the air.…”
Section: Stimulated and Coherent Anti-stokes Raman Spectrometrymentioning
confidence: 99%
“…Unlike the last review in this series (14), a section devoted to solids is not included here but such studies as are relevant are included throughout.…”
“…The ease of sample handling, the reduction of charging effects and the potential increase in beam current have for some time been recognized as advantages to be achieved by bringing the ion beam out of the accelerator and into the air (or into a helium atmosphere). Shroy and his colleagues (14) use a differential pumping system to allow a windowless exit port to be used and offer an example in which the background is relatively two orders less than that obtained with an SEM/EDS system. Fou et al (15) use a system with a hole down to 10-µ diameter for the beam to pass into the air.…”
Section: Stimulated and Coherent Anti-stokes Raman Spectrometrymentioning
confidence: 99%
“…Unlike the last review in this series (14), a section devoted to solids is not included here but such studies as are relevant are included throughout.…”
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