https://cxidb.org/data/252/mfxl1029722/calib/Epix100a::CalibV1/MfxEndstation.0:Epix100a.0/pixel_gain/0-end.data
https://cxidb.org/data/252/mfxl1029722/calib/Epix100a::CalibV1/MfxEndstation.0:Epix100a.0/pixel_gain/HISTORY