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
| Energy Resolution | < 5 meV |
| Angular Resolution | < 0.1° for 0.1 mm emission spot for He I |
| k-Resolution | 0.008 Ã…-1Â 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) |
| 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 | 10-11Â to 10-7Â mbar |
| Working Distance | 4-10 mm |
| Mounting Flange | DN150CF (8″ OD) |










