SuperKEKB Shift Report

2026/5/19 (Tu) Day shift

KCG shift Shift leader KEKB MSC Linac shift Linac MSC BCG
H.NAKAYAMA H.SAKAI Y.KURODA
H.NOGUCHI
I.SATAKE Y.MIZUKAWA
Y.IMAI
NA

Shift Summary

recorded delivered
Peak luminosity 4.88 x 10 34 cm-2s-1
Integrated luminosity (shift) 1172.9 pb-1 1322.1 pb-1

LER HERBoth DR
Energy 4.002 GeV 7.010 GeV 10.583 GeV 1.1 GeV
Beam current 1560.3 mA 1200.7 mA 28.7 mA
No. bunches 2151 2151
Beta at IP 55 mm / .9 mm 55 mm / .9 mm
Crab Waist Ratio 80 % 60 %
Aborts 0 0 0

IP Knob Tuning

10:03 LER HER
r1 (mrad) -3.28 1.50
r2 (mm) -4.66 6.90
r3 (1/hm) 15.00 -100.00
r4 (crad) 2.00 -20.00
ηy (mm) -0.12 0.08
ηpy (mrad) -20.00 20.00
waist (mm) 1.45 -1.15
chromatic r1 (mrad) 180.00 110.00
chromatic r2 (mm) -40.00 30.00
chromatic r3 (1/m) 2.00 0.00
chromatic r4 (rad) 1.00 3.00
created on 05/19/2026 16:01:11