Following is a list of basic specifications:
1.2.1. Image size and resolution.
Images consist of raster-scanned, electronic renderings of sample surfaces. There are three default sizes: 128 x 128 pixels, 256 x 256 pixels, and 512 x 512 pixels. In addition, six width-to-height aspect ratios may be specified by the user: 1:1, 2:1, 4:1, 8:1, 16:1, and 32:1. Thus, it is possible to obtain “strip scans” which require less time to capture.
The controller provides 16-bit resolution on all three axes, with three independent 16-bit digital-to-analog converters (DACs) in X and Y for control of the scan pattern, scaling and offset. This configuration provides 16-bit resolution of the lateral scanning motion at any scan size, and the ability to perform atomic resolution imaging throughout the full lateral range of the scanner. The patented digital feedback is governed by integral and proportional gain controls, providing immediate response to scanning parameter changes.
The MultiMode can scan up to 200 mm laterally (in X and Y) and 10 mm vertically (Z axis). A table summarizing each scanner’s capabilities is provided in Chapter 2.
MultiMode™SPM Instruction Manual 1-5
Part I: Introduction Introduction to the MultiMode™ SPM