IOG
5D
- Energy range: 1 keV to 5 keV
- Spot size at 5 keV, 500 nA: < 15 microns (>280 mAcm-2)
- Minimum spot size at 5 keV: < 5 microns
IOG
5D |
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| The IOG 5D Duoplasmatron Ion Gun is designed to produce a good probe shape with high current density across a wide range of spot sizes. It is suitable for both dynamic SIMS and imaging SIMS applications | |||||||||
| The standard duoplasmatron source runs Oxygen, but can be converted to run pure Argon, Helium, Hydrogen or Xenon with minor modification. The exit aperture of the duoplasmatron forms a high brightness source, enabling the formation of an intense probe. The ion-optical column is a two-lens system with a selectable aperture, nominally for definition of the intermediate field image. The column also includes a wien filter for mass filtering of the beam, a bend for rejection of neutrals and a miniature successive scanning unit. | |||||||||
| The electronics package consists of a 6U power supply box, supplying all voltages (other than rasters) required by the source and column for d.c. operation. Control is via a software interface which is provided on disc for pc installation. This includes a number of helpful features such as the facility to store sets of voltages for quick set-up of the column, voltage scanning with graphical display of current monitors and more. | |||||||||
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