EDM Basic (Electrostatic Dose Modulator)
Features
Lightning-fast speeds:
EDM systems achieve switching times faster than 20 ns.Independent intensity adjustment:
By rapidly turning the beam on and off with variable pulse widths, the EDM makes it easy to adjust the average beam intensity without changing the image conditions. A desktop accessory knob provides an intuitive interface to adjust the dose attenuation factor.Dose structuring:
Users can take control of their illumination by applying dose in pulses with variable durations as short as 100 ns and frequencies up to 500 kHz.Modern control software:
The EDM works out of the box as a fast beam blanker. Control software is included for programmable dose attenuation, logging, and more.Integration:
The EDM act as a fast reliable pre-sample beam blanker while supporting a companion Relativity Sub-Framing System as well as third-party hardware.
Pulsed beam TEM illumination*
Pulsed beam STEM Illumination*
Dose attenuation by pulsed illumination with Frequency of 500 kHz (2 μs) in a high resolution STEM at 300 kV using Si[110] in the condition of pixel dwell time with 19 μs/pixel (1,024 x 1,024 pixels), by changing duration ration from 90% to 50% during acquisition of one STEM image in 20 s.
Specifications
Fast beam blanking
| Quantity | Value |
|---|---|
| Maximum pulse frequency | 500 kHz |
| Transition time 90%-10% | < 20 ns |
| Blanking signals | 3 inputs |
Dose attenuation
| Configuration | EDM Basic |
|---|---|
| Application | TEM and STEM imaging |
| Pulse repetition frequency (max) | 500 kHz |
| Pulse width increment | 62.5 ns |
| Minimum pulse width | 125 ns |
EDM option
| EDS True Area Scan | EDM Programmable Scan with EDM Synchrony |
Applicable model: JEM-ARM300F2, JEM-ARM200F (CFEG), NEOARM (CFEG), JEM-F200 (CFEG), JEM-2200FS*, JEM-2100F*, JEM-3300, JEM-Z200FSC, JEM-Z200CA
(* These models should be equipped with a standard column without the Cs corrector.)
Gallery
◆Click the "replay" button in the box above, and the movie will start (2.5 min.)◆
Related Products
Related Products
Programmable STEM with EDM Synchrony
Control the dose at every pixel.
The Electrostatic Dose Modulator (EDM) is a fast beam blanking system with a pre-sample electrostatic deflector, including electronics and software control. EDM can also attenuate electron illumination without affecting imaging conditions, giving TEM and STEM users more control over the dose on their samples.
The optional Synchrony upgrade takes EDM's timing and synchronization capabilities to the next level. Synchrony can coordinate with a STEM controller, tracking the probe beam location as it scans across the sample. EDM's lightning-fast electrostatic blanking turns the beam on for a specified time at each pixel, or keeps the beam blanked to completely exclude sensitive regions from dose.
More Info
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