Page 3 - Shimadzu Axis Supra+

HIGH ENERGY RESOLUTION
The fundamental requirement of any spectrometer is the
best possible energy resolution. High energy resolution,
where the spectrometer does not contribute to the
broadening of the photoemission peaks, is critical for the
accurate measurement of small chemical shifts. The AXIS
+
Supra has a large 500 mm Rowland circle monochromated
Al Ka X-ray source and optimised electron optics ensuring
excellent chemical resolution.

Advantages of high spectral energy resolution
include:
FWHM = 0.4 eV
• Unambiguous identification of chemical shifts.

• Guaranteed energy resolution on insulating and
conducting samples.

Si 2p region from native oxide on Si substrate acquired from large area with high
energy resolution.

SMALL SPOT, SELECTED AREA SPECTROSCOPY
+
Improvement of the AXIS Supra small spot performance guarantees high sensitivity in small spot mode
by optimising X-ray illumination of the sample with the analysis area selected. An optional brite-X
monochromatic source can be specified for applications that require extremely high sensitivity performance
from small selected areas.
Key selected area spectroscopy attributes include:
• Pre-defined small spot analysis areas.
• Optimised X-ray illumination for improved selected area performance.
• Automated aperture and iris in the electrostatic lens column to form a virtual probe at the sample surface.

• Selected area spectra can be acquired using either the monochromatic or achromatic X-ray sources.
• μ-boost acquisition mode for extremely high sensitivity at small area mode (option).

To watch on
YouTube,
click here.
XPS image used to define
position for 27μm selected area
survey spectra.

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