Hemispherical energy analyser EA15-HP5
The EA15-HP5 allows high-resolution PES measurements in static and dynamic environments up to 5 mbar.
Description
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.
EA15 hemispherical energy analyser can be controlled directly by LabVIEW programming environment.
Note:
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.
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,
▪ computer set.
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 XPS XPS/UPS & XPS/UPS/ARPES* |
20, 50, 100, 200 eV |
| Energy resolution XPS XPS/UPS & XPS/UPS/ARPES* |
< 20 meV FWHM |
| Kinetic energy range | 0.5 – 3000 eV |
| Acquisition modes | fixed, scan |
| Transmission and angular lens mode: ▫ lens acceptance angle (transmission mode) |
+/- 15° |
| IRIS aperture | from 1 mm to 32 mm |
| Completely designed of non-magnetic materials | |
Detectors
• 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)
• Detektor DLD (for UHV)
– Maximum energy window in fixed mode: ~17% of pass energy
– 56 mm diameter detector with 7 channeltrons
– Applied voltage: 2.5-3.5 kV
Options
Pumping system for EA15-HP5
3 stages pumping system with all necessary pumps, pressure measurement system and accessories which enables analyser to work in requested pressure range (from UHV up to 5 mbar). System consists of:
- 1st stage of pumping system for analyser (lens)
- HiPace 300 turbo molecular pump (pumping speed is 260 l/s for N2)
- VAT Gate Valve DN 100CF – el-pneumatic for TMP pump
- nXDS6i Edwards forevacuum dry pump (nominal pumping speed of 6 m3/h)
- Tubing and wiring,
- Automatic safety valve and vent valve,
- 2nd stage of pumping system for analyser (lens)
- HiPace 300 turbo molecular pump (pumping speed is 260 l/s for N2)
- VAT Gate Valve DN 100CF – el-pneumatic for TMP pump
- Automatic safety valve and vent valve,
- 3rd stage of pumping system for analyser (hemisphere)
- HiPace 300 turbo molecular pump (pumping speed is 260 l/s for N2) with reducer
- VAT Gate Valve DN 63CF – el-pneumatic for TMP pump
- nXDS6i Edwards forevacuum dry pump (nominal pumping speed of 6 m3/h)
- Tubing and wiring,
- Automatic safety valve and vent valve,
- Vacuum gauges
- 3x Pirani gauge TTR91N for fore vacuum,
- 3x PTR90N – wide range gauge
- Electronic microprocessor device to control pumping system (forevacuum pumps, UHV-pumps, valves and vacuum gauges). Unit includes several interlocks to protect the vacuum system during power failure or in the case of breakdown of its components.
- Bypass between analytical chamber and analyser: tubing and safety valve