Veeco Dektak 150, Руководство пользователя

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7-6 Scan Routine Parameters
Figure 7-6: Scan Parameters Dialog Box: Length
The scan length can also be set from the Sample Positioning window by selecting Edit > Enter
Scan Length . You can enter the scan length manually using Stage Tracking, as discussed in Chapter
4 .
Scan Duration/Speed
The Duration setting displays the amount of time it takes to complete a given scan. Scan duration, in
conjunction with scan length, determines the horizontal resolution of a scan. Therefore, scan speed is
directly related to the resolution.
For example, a 13-second scan provides 3900 sample data points. You can set the scan duration from
3 to 200 seconds for a maximum of 60,000 data points per scan.
Select a longer scan duration for long scan applications and measurements of very fine surface
roughness requiring the highest horizontal resolution. When high throughput is the primary
consideration, use a shorter scan duration. For most applications, a 10-20 second scan provides
adequate resolution and throughput.
1 Click any parameter in the Scan Parameters section of the Scan Routines window (see
Figure 7-1
) to
display the Nominal Parameters tab of the Scan Parameters dialog box.
2 In the Duration field, enter the desired scan duration (in seconds) using the keyboard (see
Figure 7-7
).
3 Click OK to close the dialog box and enter the duration into the scan program.