Data Mining Ideas

Outline Motivation – Because we need it Characterization List Control Parameter List Sample plots Tasks and how to devide Data Mining

Characterization MCC WIKI has list with time needed for each measurement. Needs review of list and times How often to measure each is not specified. Sensitivity of parameter to performance (mJ / %_change; jitter / %_change) not well documented. Models’ prediction of these sensitivities also needed. Need this information for ALL machine configurations! Some MD time allocated for this. Most of these measurements can be done opportunistically during Configuration Change, User Off and Tuning times. Data Mining

ALL configurations? Bin Charge/Energy configurations into a manageable size. <40 pC 80 pC 150 pC 200 pC 250 pC Low Soft High Soft Temperate Low Hard High Hard HXRSS SXRSS Two Bunches Two Colors bunch length Bandwidth Polarization w. Delta Other permutations? Injector and L2? Each of these is ONE configuration that we want to characterize. There is a FINATE number of PVs and rules that we can use to decide what we call a “Configuration” to track. Data Mining

Information needed for each configuration Beam time required for measurement (can be “zero” i.e. BPM orbit) Measurement frequency in times/shift GUI or Process used PV names of results Measure sensitivity to Pulse intensity, Jitter. Data Mining

Data Mining Filter data by configuration. (pC, GeV, Seeding state) Generate plots of performance parameters vs time and vs machine parameters) Generate plots of control devices vs time Measured sensitivities. (Correlation plot files, TunagedonTM files, new process that monitors quad control changes) Data Mining

Tasks List Reproducibility web page contains link to document “LCLS_Characterization”Link See task tab for details. Parameter Beam Time (minutes) Minimum Frequency (Times/Shift) GUI PVs Sensitivity mJ/%_change Modeled Sensitivity TCAV0 Bunch Length 10 1/(3*7) OTR2 Slice emittance 2 1/(3*7*4) DL1 Dispersion Measurement QE emission profile imaging with Solenoid 5 Drive Laser Maintenance 15 1/(3) Laser Heater Profile 8*60 Laser Heater Transverse Alignment 7 1 Data Mining