Instruments

PREVAC EA15 Hemispherical Energy Analyser

PREVAC EA15 Hemispherical Energy Analyser

Technical data

Mounting flange DN 100 CF
Bakeout temperature up to 150 °C
Working distance 43 mm
Analyser mean radius 150 mm
Pass energies 1, 2, 5, 10, 20, 50, 100, 200 eV
Energy resolution
XPS

XPS/UPS & XPS/UPS/ARPES

< 20 meV FWHM at PE 2 and 20 eV kinetic energy
< 3 meV FWHM at PE 2 and 20 eV kinetic energy
Kinetic energy range 0 - 2000 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
Completely designed of non-magnetic materials

PREVAC EA15 hemispherical energy analyser is intended to provide high-resolution PES measurements to be analysed in a 150 mm mean radius assembly.

The analyser is wrapped in a shield constructed of two parallel mu-metal plates guaranteeing adequate analysis conditions for low-and high-energy photoelectrons.

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

Detectors
•    CCD-MCD detector
  - 40 mm diameter dual MCP detector  
  - 656 energy channels available simultanously
  - 494 angular channels available simultanously
  - 90 fps
•   Channeltron detector (coming soon)
•   DLD detector (coming soon)

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

Note:
The use of a mu-metal analysis vacuum chamber or an inner mu-metal shielded chamber in combination with PREVAC EA15 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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