1. Data Mining Ideas

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

3. 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

4. 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

5. 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

6. 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

7. 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