Hemispherical Energy Analyser EA15-HP5

Hemispherical Energy Analyser EA15-HP5

Technical data

Mounting flange DN 100 CF
Bakeout temperature up to 120 °C
Working distance 1-2 mm (dependent on cone opening)
Analyser mean radius 150 mm
Pass energies

20, 50, 100, 200 eV
1, 2, 5, 10, 20, 50, 100, 200 eV
Energy resolution

< 20 meV FWHM
< 3 meV FWHM
Kinetic energy range 0.5 - 3000 eV
Acquisition modes fixed, scan
Transmission and angular lens mode:
 ▫ lens acceptance angle
   (transmission mode)
 ▫ lens acceptance angle
   (angular mode)

+/- 15°

+/- 10°
Maximum energy window in fixed mode 12.5 % of pass energy (for MCP-CCD)
Completely designed of non-magnetic materials

 *only in UHV conditions


The PREVAC EA15-HP5 hemispherical energy analyser, which is based on the EA15 analyser, allows due to special designed extraction cones and automatic vacuum control, high-resolution PES measurements in static and dynamic environments up to 5 mbar.

The analyser is equipped with a total number of 11 slits and offers the possibility to choose between best energy resolution and best intensity. According to given photoelectron energy the analyser is set up with up to 8 predefined PE to satisfy customer's requirements.

•  MCP-CCD detector
    - 40 mm diameter dual MCP detector  
    - 656 energy channels available simultanously
    - 494 angular channels available simultanously
    - 90 fps
•  7-MCD detector (for UHV)
•  DLD detector (for UHV, on request)

The PREVAC analyser package includes:
▪ EA15-HP5 150 mm hemispherical energy analyser
RUDI-EA2 high stable and low noise electronics
SPECTRIUM acquisition and analyser control software for Windows OS computer system.

Additional information
EA15 hemispherical energy analyser can be controlled directly by LabVIEW programming environment.

The use of a mu-metal analysis vacuum chamber or an inner mu-metal shielded chamber in combination with PREVAC EA15-HP1 hemispherical energy analyser is recommended in order to minimalize influence of external magnetic fields and to maximize performance of the analyser.

Download brochure

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