SLAC Magnetic Measurements Date: 04-08-2026 Time: 10:00:35 Project: LCLS-II-HE Device Type: Undulator Data Type: Serial Number: HE_SXU_008 DATASET Number: 1 Tuning Stage: Tuning Run Number: 13 Measurement Type: Long Coil Scans Operator: JB Comment: All vs Gap; before final