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ThemIS Specifications


General Specifications  

Accelerating Voltage 60, 80, 120, 200, and 300 kV
TEM Information Limit (300kV) 0.07 nm
TEM 3rd order spherical aberration  <1 µm (adjustable range +/- 50 um)
STEM Resolution (300kV) 0.136 nm
STEM Spherical Aberration Cs  1.2 mm

Detectors

EDS Super X - four windowless silicon drift detectors with a total solid angle of 0.7 steradians and 140 eV energy resolution.
STEM HAADF, segmented ADF, ADF, BF
HRTEM/Diffraction/Movies FEI Ceta2 4k x 4k CMOS with scintillator, 40 fps.

Specimen Holders

Temp range Alpha tilt Beta tilt
FEI low background double tilt for EDS - ±33° ±26°
Hummingbird Tomography holder for tomography and EDS - ±70°/±70° -
Protochips double tilt holder for in-situ heating and biasing and EDS 23°C-1000°C ±30° ±11°
Protochips single tilt holder for in-situ heating and biasing 23°C-1000°C ±30°  
FEI low background double tilt for general use with hexring for magnetic samples - ±30° ±26°
FEI single tilt for general use - ± 30° -
Gatan 652-Ta double tilt heating holder 23°C-1000°C ±30° ±26°
Gatan 636-DH low background DT liquid nitrogen cooling holder -170°C/ 100°C ± 30° ±26°
Gatan 915 Cryo-transfer LN2 DT holder -170°C/ 100°C ± 30° ±26°
Hysitron PI-95 Mechanical compression, tension, biasing holder - ± 30° -
Gatan 654 Mechanical straining holder - ± 30° -
Hummingbird Biasing Holder for MEMS devices - ± 30° -