Kreios150 analyser

The KREIOS 150 S is a new generation of electron spectrometers for high performance ARPES and PEEM. The unique lens system combines an immersion lens for PEEM operation with a hemispherical energy analyser scanning system for unrivaled ARPES measurements. Its lens system acquires the full half sphere of the electron emission for ultimate angular acceptance of 180°.

The KREIOS 150 S displays energy vs k-vector or energy vs spatial information directly on the detector. With the scanning lens it is possible to measure a full 3D dataset for ARPES or energy filtered PEEM. The lens system features apertures to refine the k-space into high contrast and dark field PEEM, as well as field apertures to select a spatial region for µ-ARPES down to 2 µm field of view. The kinetic energy up to 1500 eV allows XPS and XPEEM measurements. With the new CMOS detector, the KREIOS 150 S is the most performing ARPES analyser available.

Key Features


  • Full 180° angle ARPES
  • µARPES (< 2 µm field of view)
  • Extractor zoom lens design
  • Kinetic energy range 0 – 1500 eV
  • Energy resolution < 5 meV
  • Angle resolution < 0.1
KREIOS 150 S
Performance
Energy Resolution < 5 meV
Angular Resolution < 0.1° for 0.1 mm emission spot for He I
k-Resolution 0.008 Å-1 for 0.1 mm emission spot @ He I
Acceptance Angle ±90° full cone
Lateral Resolution 50 nm
35 nm Achievable
Smallest Acceptance Spot 2 µm
XPS Count Rates UHV N/A
Detector Channels 1285 x 730 (with Channel Binning)
Operation
Kinetic Energy Range 0-1500 eV
Angular Resolved Modes N/A
Pass Energies 1-200 eV Continuously Adjustable
Magnetic Shielding Double µ-Metal Shielding
Energy Dispersion Hemisphere
Lens Modes PEEM Mode, Momentum Resolved Mode
Measurement Modes Snapshot Mode, Sweeping Mode
Detector 2D CMOS Detector with Spin Option
Slits/Apertures 8 entrance and 3 exit slits and iris aperture
Energy Window 13% of Pass Energy
Electric Isolation > 3.5 keV, 29 keV on lens system
Electronics HSA + for KREIOS
Working Pressure 10-11 to 10-7 mbar
Mounting
Working Distance 4-10 mm
Mounting Flange DN150CF (8″ OD)