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Technical details about XTCAV analysis can be found here: XTCAV Documentation.  Since the scripts there have been ported to psana2 much of what is written there is relevant for psana2.  Here we try to describe requirements that are different for the LCLS2 case.

Mixed Cu Beam Redirected to SC Beamline

Done for TXI on June 28, 2024.

Required per-shot xtcav variables:

  • xtcav klystron amplitude.  In HXR ebeam bld or TCAV:DMPH:360:0:FB_FAST_AACTCUSBR
  • xtcav klystron phase.  In HXR ebeam bld or TCAV:DMPH:360:0:FB_FAST_PACTCUSBR
  • gasdetector energy

Required low-rate epics variables.  Note that OTRS:DMPS:695 refers to the sxr-xtcav camera.

  • ROI_SIZE_X_names  = ['XTCAV_ROI_sizeX',  'ROI_X_Length', 'OTRS:DMPS:695:SizeX_RBV']
  • ROI_SIZE_Y_names  = ['XTCAV_ROI_sizeY',  'ROI_Y_Length', 'OTRS:DMPS:695:SizeY_RBV']
  • ROI_START_X_names = ['XTCAV_ROI_startX', 'ROI_X_Offset', 'OTRS:DMPS:695:MinX_RBV']
  • ROI_START_Y_names = ['XTCAV_ROI_startY', 'ROI_Y_Offset', 'OTRS:DMPS:695:MinY_RBV']
  • UM_PER_PIX_names     = ['XTCAV_calib_umPerPx','OTRS:DMPS:695:RESOLUTION']
  • STR_STRENGTH_names   = ['XTCAV_strength_par_S','Streak_Strength','OTRS:DMPS:695:TCAL_X']
  • RF_AMP_CALIB_names   = ['XTCAV_Amp_Des_calib_MV','XTCAV_Cal_Amp','SIOC:SYS0:ML05:AO214']
  • RF_PHASE_CALIB_names = ['XTCAV_Phas_Des_calib_deg','XTCAV_Cal_Phase','SIOC:SYS0:ML05:AO215']
  • DUMP_E_names         = ['XTCAV_Beam_energy_dump_GeV','Dump_Energy','REFS:DMPS:400:EDES']
  • DUMP_DISP_names      = ['XTCAV_calib_disp_posToEnergy','Dump_Disp','SIOC:SYS0:ML05:AO216']
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