Instruments vacuum

EA15 Hemispherical Energy Analyser


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The 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.

•    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.


Electron Source 40C1

The ES 40C1 Electron Source is a scanable electron gun with small spot profile. Due to the high transmission of its Einzel-Lens, the ES 40C delivers a high electron beam current over a wide energy range. The ES 40C1 is designed for a stable and reliable operation in e.g. AES, scanning applications,imaging, EELS and electron pulse or desorption experiments.






Technical data


Mounting flange: Rotatable, DN 40CF  
Bakeout temperature: 250°C
Water cooling: Not required
Insertion length: min. 156 mm, (other on request) OD: 34.5 mm
Energy range: 1 eV - 5 keV
Spot size: 120 µm (for optimum distance)
Scan area: 10 mm x 10 mm
(for working distance of 75 mm)
Cathode type: Thoriated Tungsten
Shield Copper or mu-metal



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