Belle Stack 4: 2 DSSD -z, Origami #3, #1, wedge new #2
HV = +-50V, Ibias=77A
Position: APVs #2, 7, 11, 15 | # 17/18, 21, 25, 29
= p: 2DSSD #2, Origami3 #3, Origami1 #3, wedgenew #3
= n: 2DSSD #1/2, Origami3 #1, Origami1 #1, wedgenew #1

beam went off (LINAC problem) around

20.10.2012  07:00:39  event=315937

So better ignore the last 3000 events during analysis.