JEOL JSPM-5200 Instructions Manual page 241

５ MEASUREMENT OPERATION
Scan Area
The WinSPM software defines the center position of the total scan area of the scanner as
the image-offset coordinate (0, 0). It also defines the scan angle in the range of ±180
degrees by setting 0
Here you specify the
current state of the image offset and the scan-rotation angle.
This window
The large square shows the total scan area of the scanner, and the inside square
shows the current scanning area within the total scanning area. The shape and
position of the inside square change according to the scan size, the amount of image
shift and the scan rotation angle.
Setting the Amount of Image Offset
Ther e are 3 methods for setting the amount of image shift, as follows:
• Dr
agging
Move the cursor to the current scanning area. The cursor will change to the + mark.
Then, drag the cursor to the desired position.
• Us
ing the "Offset" input boxes
Enter the offset values directly into the Offset input boxes using the k
• Us
ing the scroll bar
Move the current scanning area by using the scroll bar. This method is useful for a
tiny scanning area such as for observing an atomic image.
5-178
degrees as the origin.
image-offset coordinate and the scan-rotation angle, and display the
shows the current scanning area.
The scanner shifts in real-time with the movement of the cursor during drag-
ging, so shift it slowly.
When performing scanning immediately after using the Scan Area, the image
may sometimes become distorted due to hysteresis or creep of the scanner. In
the case of creep, it may take several minutes until the image distortion disap-
pears.
eyboard.
TMPM5200-2