Wide-Angle Tomographic Atom Probe (WATAP)
- Base voltage: < 15 kV
- Laser mode (see below) and electrical pulse mode:
- Pulse voltage < 3.5 kV
- Pulse frequency: < 200 kHz
- Pulse width: 5 ns
- Flight path: 30 cm
- Diameter of the MCPs: 12 cm
- Opening angle: ~25°
- Temperatur: > 40 K
- Additional reaction cell:
- H, CO, O2 ...
- Temperature: < 450 °C
- Additional field ion microscope
Micro-Electrode Tomographic Atom Probe (METAP)
- Base voltage: <15 kV
- Evaporation by laser pulses
- Diameter of optional microelectrodes: 10 - 50 μm
- Temperature: > 30 K
- Flight path: 12 cm
- Diameter of the MCPs: 12 cm
- Opening angle: 30°
Modular Tomographic Atom Probe (M-TAP)
- Atom probe of minimum size with only one vacuum chamber + airlock for a direct connection the FIB-SEM Scios
- Base voltage: < 15 kV
- Evaporation by laser pulses
- Detector:
- Efficiency > 80%
- Triple Stack, Delay Line
- Diameter of the MCPs: > 75 mm
- Flight length: 10,5 cm
- Measurement rate: 107 Atome/h
- Temperature: > 20 K
- Opening angle: 40°
- Transfer shuttle with high precision 6-axes piezo stage (X, Y, Z, rotation X, rotation Y, rotation Z)
Field-Ion Microscope
- Imaging gases: He, Ne
- Tip temperature: T>25 K
- Flight path: 5 cm
- Screen diameter: 75 mm
- Sample tilting range +/- 60° (two axes)
Laser pulsing systems
Mode-locked fiber-laser „Impulse“ by ClarkMXR
- Pulse frequency: 100 - 500 kHz
- Puls width: 10 ps - 250 fs
- Laser wavelengths (F/SHG/THG): 1030nm / 515nm / 343nm
- Spot size: > 15 μm
Coherent Laser
Patrick Stender
Dr.Sr. Scientist
Guido Schmitz
Prof. Dr. Dr. h.c.Chair Professor
- Profile page
- +49 711 685 61902
- Write e-mail
- Appointments thru Ms. Dunn