Diane Fairley High Level October 24-28, 2005 High Level Physics Applications LCLS Week / FAC October 24-28, 2005 Outline Required High Level Applications SLC Applications Available to LCLS XAL Applications Available to LCLS Concerns and solutions Infrastructure plans Task List for the next 12 months

Diane Fairley High Level October 24-28, 2005 Required High Level Physics Applications * see LCLS PRD: Requirements for High Level Software Applications Packages by Patrick Krejcik Emittance Applications Emittance measurement Transverse Slice Emittance Beta Matching Energy, energy spread applications Slice energy spread application Bunch Length measurement Orbit Applications Orbit display Orbit fitting Orbit corrections Bump calculation Power steering Energy Management

Diane Fairley High Level October 24-28, 2005 Required High Level Physics Applications Supporting software Online model; transfer R-matrices and twiss parameters Buffered acquisition Correlation plots Multiknob facility Configuration management Golden orbits, user setpoints, constants

Diane Fairley High Level October 24-28, 2005 How will we provide these Applications? SLC Applications, via the SLC-aware IOCs XAL Developed by and proven successful at SNS Java based; platform independent Has a future with the EPICS community Includes an online model Includes many applications already developed at SNS

Diane Fairley High Level October 24-28, 2005 SLC Applications Available to LCLS SLC-aware IOC provides BPM data, data from other gated acquisition devices, and magnet control to the SLC Control System An online model of LCLS in the SLC system will provide model data Injector, linac, BSY only for now Therefore, the following SCP applications will work for LCLS: Orbit applications Orbit display Orbit fitting Orbit correction Bump calculations Power steering Energy Management Support software Buffered acquisition Correlation plots Multiknob facility SLC CA server (CAMAC device readback) Configs (configuration management)

Diane Fairley High Level October 24-28, 2005 Applications not provided by SLC Bunch Length Measurements, and Emittance and Energy Spread Applications The slc-aware portion of the IOC will not perform wire scans, does not control the bunch length measurement devices (OTRs, YAGs, RF deflector), nor does it provide images to the SLC system. These measurements will be done by the IOCs in EPICS only. The control, readback, data PVs are accessible by Channel Access. Control of CAMAC devices is not available through Channel Access.

Diane Fairley High Level October 24-28, 2005 XAL applications available to LCLS *Paul Chu - SNS Developed at SNS Online Model Orbit Difference Orbit Correction Transverse Tuning Energy Manager Virtual Accelerator Other tools Channel Correlator Scripting interface (Jython, Matlab) PV Logger (can replace or supplement Channel Archiver) Math tools And others…

Diane Fairley High Level October 24-28, 2005 Example XAL: Linac Transverse Tuning Apps Use 3+ wire scanners for emittance measurement. Perform transverse matching using online model. Wire profiles emittances

Diane Fairley High Level October 24-28, 2005 High Level Apps within the LCLS network

Diane Fairley High Level October 24-28, 2005 Concerns and solutions Bunch Length Measurement, Energy Spread, Emittance applications not available via SLC Fully develop these applications in XAL; start with existing SNS applications Backup: Develop in Matlab for commissioning. Aida provides SLC model data, Channel access or Aida gets IOC measurements via PVs. Energy Management Energy management will not be needed until commissioning beyond BC1 is started XAL Issues Configuring the online model to work for LCLS Adjusting XAL’s SMF device classes to match LCLS devices; add new devices SNS is a smaller system; we must be mindful of difficulties with ‘scaling up’ for LCLS LCLS – we want more calculations performed by IOCs; data reduction LCLS - we want to add more status checking LCLS – the online model is much larger, more time required to run model network traffic with Channel Access and files required by XAL apps. LCLS will have more users running apps CAMAC device control is not available from the SLC Slc-aware IOCs will not control CAMAC devices; MCC CA Server is read-only; no control Magnet control via Aida is under development now; or Change CA Server to read / write

Diane Fairley High Level October 24-28, 2005 Infrastructure plans: next 12 months Target platform Linux OS Mac OS may be a freebie No Windows support Development tools and environment IDE : Eclipse CVS source control Matlab Matlab on Linux – licenses The SSRL Matlab toolbox will not be provided at this time Files sharing / network security Network plans to accommodate XAL applications Access to data and files from the public network

Diane Fairley High Level October 24-28, 2005 Task List and Resources: next 12 months LCLS online model for SLC Mark Woodley, begins January 2006 Also Mike Zelazny, Nancy Spencer - includes SLC DB work, SCP displays, adding panels, regions… Complete magnet job in slc-aware IOC Kristi Luchini, Debbie Rogind - now Continuous testing of slc-aware IOC as new hardware becomes available Debbie Rogind, Diane Fairley, Stephanie Allision, Kristi Luchini, Mike Zelazny XAL for LCLS: working and verified online model, database, ‘device’ classes Sergei Chevtsov, Diane Fairley, Debbie Rogind, Greg White (advisory) Emittance, and Bunch Length Measurement applications development in XAL Debbie Rogind, Diane Fairley, Sergei Chevtsov, Mike Zelazny, Greg White (advisory) Emittance and Bunch Length Measurement applications development in Matlab (as backup) Paul Emma Epics extensions setup Archiver - Sergei Channel watcher, backup save/restore, message logging, pv gateway– various Controls Group members Longer term development Energy Management in XAL Moving more capabilities and applications to EPICS / XAL