JEOL Ltd. (Gon'emon Kurihara,
President) announced a new transmission electron
microscope, JEM-ARM200F, incorporating a spherical
aberration corrector for the electron optic system as
standard, to be distributed in March 2009.
[Background]
Transmission electron microscopes are designed to
study the geometry and structure of substances at high
resolution. They can also analyse the elements
constituting substances and the status of electrons by
incorporating various analysers such as energy
dispersive X-ray fluorescent spectrometer (EDS) and
electron beam energy loss spectrometer (EELS).
A new technology has recently been introduced to
correct spherical aberrations that have long restricted
the resolving power of electron microscopes. Spherical
aberration correctors significantly enhance the
resolution and analytical capabilities, enabling
ultimate atomic level analysis. The JEM-ARM200F is a
powerful transmission electron microscope with a
standard spherical aberration corrector, featuring sub
angstrom resolution and atomic level analysis.
[Features]
- Atomic level
resolution - STEM: 0.08 nm; TEM: 0.11 nm
- Standard spherical aberration
corrector for electron optic system eliminating
spherical aberrations
- Maximum accelerating voltage 200 kV
[Specifications]
| Resolution |
| Scanning transmission image
* |
0.08
nm (at 200kV) |
| Transmission image |
0.19
nm (at 200 kV) 0.11 nm (at 200 kV; with
spherical aberration corrector for image forming
system) |
| Magnification |
| Scanning transmission
image |
100
to 150,000,000x |
| Transmission
image |
50
to 2,000,000x |
| Electron Gun |
Schottky field emission gun |
| Accelerating
Voltage |
80
to 200 kV |
| Specimen Stage |
| Stage |
Eucentric side entry goniometer
stage |
| Specimen Size |
3
mm |
| Maximum tilt angle |
+-25
deg (with double tilt holder) |
| Movement range |
X/Y:
+-1 mm (motor drive / piezo drive) |
| Aberration
Correctors |
| For electron optic
system |
Standard |
| For image forming
system |
Optional |
| Optional
Accesories |
- Energy dispersive X-ray
spectrometer (EDS)
- Electron beam energy
loss spectrometer (EELS)
- CCD camera
|
* Dark field ring detector
used