SuperKEKB Shift Report

2026/4/22 (We) Day shift

KCG shift Shift leader KEKB MSC Linac shift Linac MSC BCG
M.YAO M.SHIRAI H.NOGUCHI
H.TSUKAHARA
D.WANG Y.ICHIMURA
Y.IMAI
Chihhan Tseng

Shift Summary

recorded delivered
Peak luminosity 3.99 x 10 34 cm-2s-1
Integrated luminosity (shift) 463.2 pb-1 481.3 pb-1

LER HERBoth DR
Energy 3.979 GeV 6.970 GeV 10.523 GeV 1.1 GeV
Beam current 1402.1 mA 1161.2 mA 28.8 mA
No. bunches 2346 2346
Beta at IP 60 mm / 1 mm 60 mm / 1 mm
Crab Waist Ratio 80 % 60 %
Aborts 2 1 3

IP Knob Tuning

13:48 LER HER
r1 (mrad) -4.60 -1.01
r2 (mm) -4.63 6.33
r3 (1/hm) 14.00 0.00
r4 (crad) 5.00 0.00
ηy (mm) -0.23 0.01
ηpy (mrad) -30.00 5.00
waist (mm) 1.35 -1.00
chromatic r1 (mrad) 0.00 0.00
chromatic r2 (mm) 0.00 0.00
chromatic r3 (1/m) 0.00 0.00
chromatic r4 (rad) 0.00 0.00
created on 04/22/2026 16:01:11