Hemispherical Energy Analyser EA15

The EA15 provides high-resolution PES measurements with a 150 mm mean radius analyser.



Prevac are a world leader in the design and production of analytical and deposit scientific and research equipment. Their systems operate in a high and ultra high vacuum environment. They design and construct UHV and HV systems fully adapted to the individual requirements of research projects and industrial applications.

Key Features

  • Computer set
  • EA15 150 mm hemispherical energy analyser
  • RUDI-EA2 high stable and low noise electronics
  • SPECTRIUM acquisition and analyser control software for Windows OS computer system


The analyser is wrapped in a shield constructed of up to 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 up to 8 predefined PE to satisfy customer’s requirements.


  • MCP-CCD detector
    – 40 mm diameter dual MCP detector
    – 656 energy channels available simultaneously
    – 494 angular channels available simultaneously
    – 90 fps
  • 7-MCD detector
  • DLD detector
    – Maximum energy window in fixed mode: ~17% of pass energy
    – 56 mm diameter detector with 7 channeltrons
    – Applied voltage: 2.5-3.5 kV

Technical data

Mounting flange DN 100 CF
Bakeout temperature up to 150 °C
Working distance 43 mm
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°
+/- 3°
+/- 10°
IRIS aperture from 1 mm to 32 mm
Completely designed of non-magnetic materials



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Service Support

Comprehensive repairs and servicing

Annual Support Programs

Your metrology instrumentation is a major investment that is critical to your business operation and success. In today’s competitive climate, it is more important than ever to extend the functionality and peak performance of your metrology equipment years beyond the expiration of your factory warranty. CN Tech’s Support Programs will help ensure that your investment is protected, and that you and your instrument’s are always operating at peak performance.

With over 20 years’ experience servicing and repairing you can be assured that your system is in safe hands. The independent services we offer include system relocation, maintenance visits, parts and consumables, and break down interventions.

CN Tech’s Support Programs are an economical way to guarantee optimal working condition:

  • Annual Preventive Maintenance
  • Priority Technical Assistance
  • Preferred Parts Availability
  • On-Site User Training
  • Remote Diagnostics
  • No surprise repair expense and much more!

Support Contact Example

An example of our service and support contracts are shown below:


Metrology & Instrumentation Annual Support Programs 2022/23

CN Tech's Support Programs will help ensure that your investment is protected, and that you and your instrument’s are always operating at peak performance.

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