Setting up a STEM Experiment

This script demonstrates how to set up a STEM experiment using the DE API.

This script will: 1. Connect to the DE server 2. Set the hardware ROI to 256x256 3. Set the scan size to 256x256 4. Set the number of frames per second to 1000 5. Acquire a STEM image using a HAADF detector

from deapi import Client
import sys

Connect to the DE server

client = Client()
if not sys.platform.startswith("win"):
    client.usingMmf = (
        False  # True if on same machine as DE Server and a Windows machine
    )
client.connect(port=13240)  # connect to the running DE Server

Command Version:  13

Set the hardware ROI to 256x256

In this case we just use the center 256 pixels of the 1024 pixel sensor.

client["Hardware ROI Size X"] = 256
client["Hardware ROI Size Y"] = 256
client["Hardware ROI Offset X"] = 256
client["Hardware ROI Offset Y"] = 256

Set the scan size to 256x256

client.scan(size_x=256, size_y=256, enable="On")

Set the number of frames per second to 1000

client["Frames Per Second"] = 1000

client.disconnect()