JEOL JSPM-5200 Instructions Manual page 273

５ MEASUREMENT OPERATION
• Using the scroll bar
Move the current scanning area by using the scroll bar. This method is useful for a
tiny scannin
Y offset
• Setting
Spe
inpu
–180° to +180
Eve
such as change of the scanner coordinate does not arise bec
direction changes at the start of the scan. However, when you start the scan after
chan
from
the scanner for a short while after starting the scan.
Enable P re-Scan
If yo u check the left side check box, a pre-scan will be performed before scanning. The
meas urement-signal source gain and the offset value will be adjusted automatically.
Conc erning how to set scan for pre-scan, refer to Pre-scan Setting in the SPM Setting
Men u.
Enabl e Lap Scan
If yo u check the left side check box, the unidirectional scan mode from top to bottom
will be changed to the bi-directional scan mode from top to bottom.
Enable G rid
If yo u check the left side check box, the four markers that you can move will appear on
the D isplay Window. The marker indicates the same coordinate point of each image
when multiple images appear on the Display Window.
You can drag the position of the marker using the mouse.
5-210
g area such as for observing an atomic image.
The scan ner shifts in real-time with the positional change of the scroll-bar, so
shift it slow ly.
the Scan Rotation Angle
cify the scan-rotation angle by moving the scroll-bar on the Scan Angle or by
tting the rotation angle in the text box. You can specify
°.
n if you change the scan-rotation angle, any action involving scanner movement
ging the scan-rotation angle, since the scanner moves to the different direction
the previous one, the imag
Usually, use 0 degrees.
Maximum scanning
area
Current scanning
area
X offset
e may sometimes become distorted due to creep of
a rotation angle from
ause only the scan
TMPM5200-2