Maker : Thermo scientific
Model : K-alpha+
1. Electron analyser with Lens system
- Type : Spherical sector analyser
- Mean diameter : 250mm
- Operation mode : CAE
- Min. energy step size : 3 meV
- Ultimate Energy resolution (of Ag 3d5/2 peak) : <0.5eV FWHM
- Ultimate spatial resolution : <30μm, by knife edge method
- XPS on Insulators : C 1s energy resolution (eV) : <0.85eV
- Pass Energy : 1 – 400 eV
- Analyser Housing : Mu-metal shielded
- Detector : 128-channel detector
- Max. Sensitivity at 1eV FWHM on Ag3d5, at 400 μm : 4,000,000 cps
2. Microfocussed Monochromatic X-ray source
- Anode material : Al anode
- Type : Microfocussed Monochromator
- Crystal alignment : by Computer controlled
- Source cooling : water cooling
- Safety inter lock : High voltage, coolant, Vacuum pressure & mechanical interlocks,
- Data system control of all X-ray source parameters
- Rowland circle : 250mm
3. UHV Analysis chamber
- Material : UHV compatible chamber
- Ultimate vacuum : 5×10-9mbar
- Pumping system :
Turbo-molecular pump : 260 l/s
Rotary vane backing pump
4. Ion source and power supply with gas admission unit
- Energy range : 100 eV to 4 keV
- Max. beam current : 4 μA at 3keV
5. Fast entry chamber with transfer mechanism
- Material : UHV compatible stainless steel
- Complete with sample transfer mechanism and vacuum gauges
- 260 l/s turbo-molecular pump
Rotary vane backing pump
- Automated specimen transfer mechanism controlled from data system
6. High precision manipulator
- High precision, automated specimen stage with internal stepper motors
- Maximum specimen dimensions : 60 x 60 x 20 mm
- Multi-specimen mounting plates : three
- Mounting plate for powder samples : One
- Rotation holders : One set of three
7. System Bench and Bakeout facility
- System Bench : Heavy duty steel bench
- Bakeout facility : without disconnecting cables etc. By heating tapes
8. Combined Low Energy Electron / Ion flood source for Charge Neutralization
- Type : dual-beam low energy electron / ion source
- Electron beam energy : 0 - 5 eV
- Electron beam emission : Up to 250 µA
- Useable gases for ion flood : Argon
9. VACUUM TRANSFER MODULE :
- Sample holder allowing samples to be transferred under vacuum into the system
- Maximum specimen thickness : 9 mm
10. UV PHOTOELECTRON SPECTROMETER (UPS)
- HIGH INTENSITY UV LAMP WITH AUTOMATED TWO-STAGE DIFFERENTIAL PUMPING
- Automated differential pumping shut-off valves
- Two separate high precision gas admission valves for Helium I / Helium II
- UV lamp power supply
- data system control interface
- SENSITIVITY in the Ag 4d peak at 120 meV energy resolution : 2,200,000 CPS