Start 13:56

Degrader 50

channel 1 : Si upstream
channel 2: SiC downstream

400 V Bias

Referenz: 2.100 V channel 2, 0-Level: 2.310V channel 2
Referenz: 2.477V channel 1, 0-Level: 2.315V channel 1

position:

x = 8
y = 68

Start: 14:06
Range Shifter Out, Filter 1 IN, Filter 2 IN

MT=1, BSY=50,
1cm off in +x and +y direction
Setting IV

MT=1, BSY=50,
2cm off in +x and +y direction (wrong direction)
setting IV
 

MT=1, BSY=50,
looks +0.5vcm x, -0.5cm y
rate quite low
setting IV
 

MT=1, BSY=50,
x is centered now, y looks 0.25cm off
setting IV
 

MT=1, BSY=50,
rate few 100Hz
x looks off, y centered now (after -0.25cm in y correction)
setting IV
 

MT=1, BSY=50,
beam almost centered (total correction +15mm x (to the left in beam direction) and +7.5 mm y (down in beam direction)

rate between 100Hz and 70 kHz
setting IV
 

MT=1, BSY=50,
beam  centered (total correction +12.5mm x (to the left in beam direction) and +7.5 mm y (down in beam direction)

rate between 100Hz and 70 kHz, few 100Hz spills
setting IV
 

MT=1, BSY=50,
now correct degrader, beam still off
setting IV
 

MT=1, BSY=50,
beam is centered
rate few 100kHz and two peaks in beam profile
setting IV
 

MT=1, BSY=50,
beam shifted again
jumps in rate too high
setting IV
 

MT=1, BSY=50,
beam shifted again
max 30kHz, low rate
setting IV
 

MT=1, BSY=50,
setting IV
 

MT=1, BSY=50,
setting IV
 

MT=1, BSY=50,
setting IV
 

MT=1, BSY=50,
setting V

spot still centered
quite stable
~120kHz
steering setting IV

MT=1, BSY=50,
potential setting VI

few outlier, fewer fluctuations
steering setting IV

MT=1, BSY=50,
setting VI

few outlier, fewer fluctuations
final setting VI
steering setting IV

MT=1, BSY=50,

beam off
potential setting VII
steering setting IV