User name Eric Voutier
Log entry time 19:21:55 on March 6,2000
Entry number 35711
keyword=Scan# 617 and 618-# Checking the spot size and aspect ratio
scanner # 6 TJ name=IHA1H03B
Wire combination H position V position
# 1 # 2 -76.um -45.um
# 1 # 3 -85.um -54.um
# 2 # 3 -85.um -36.um
weighted average -85.um -45.um
roll angle 0.704mr 0.040deg -0.350deg
Absolute beam h position: -85.um (+ means at beam left)
Absolute beam v position: -45.um (+ means too high)
Horizontal sigma (um): 98.
Elliptic approximation:
(tilt angle is from horizontal axis to major axis)
Vertical sigma (um): 95.4798
Ellipse tilt angle (deg. clockw.): 33.4516
Ellipse major axis length (um) : 99.1786
Ellipse minor axis length (um) : 93.8196
--> acceptable tune
-# Checking the raster size
On the HARP scan the raster turn out to be 3 x 4 and 4 x 4 on spot++... which guy
to believe??
FIGURE 1
FIGURE 2
