LLE to develop an operational procedure document for HE-LP laser system.
From here, we will develop interfaces to subsystems.
2
LLE Device List
Jason Bender
Hardware device list will be collaborative as some systems will come entirely from SLAC (Motion, timing, laser safety) and some are custom for LLE
New/custom devices will need EPICS interface developed.
3
LLE ICD
Jason Bender
3.1
Shot Executive
Jason Bender
SLAC to develop shot executive code based on LLE design.
It is vital to see how the shot process functions in order to understand how form code.
November 11-15, Diana will show Tyler J and Alex W how the shot process is performed from the controls POV.
3.1.1
Code Development
Jing Yin
Jing requested use cases to understand software/code more in depth.
LLE is currently determining how much source code should be shared with SLAC.
LLE to find documentation of shot executive and facility operations to show how different systems are communicating with one another.
Previous presentation addressing overall architecture. Jason to resend presentation to SLAC.
3.2
Power Conditioning Unit
Jason Bender
Custom from LLE
3.3
Laser Safety System
Jason Bender
SLAC
3.4
Pulse Shape Control and Measurement
Jason Bender
Somewhat unknown
3.5
Laser Timing Manager
Jason Bender
SLAC
3.6
Hardware Timing System
Jason Bender
SLAC
3.7
TDC Time to Digital Converter
Jason Bender
SLAC solution
3.8
Motion Control
Jason Bender
SLAC
3.9
Digital Imaging
Jason Bender
LLE has collection of cameras they use. Will check SLAC supported device list.
3.10
Energy Diagnostics
Jason Bender
Imaging
3.11
Calorimeters
Jason Bender
LLE has calorimeters that they have. Will share devices.
3.12
Spectrometer
Jason Bender
Off-the-shelf devices.
3.13
Regen/preamp Injection Pump and Wavefront Controller
Jason Bender
LLE
3.14
Plasma Electrode Pockets Cell (PEPC)
Jason Bender
Custom LLE
3.15
Vacuum System
Jason Bender
Similar beckhoff systems, SLAC.
4
Creating Device Lists
Jason Bender
Device counts not needed at this level.
Need to identify the various device classes. Everything that needs to be replaced with a SLAC solution needs to be identified.
Iterative and collaborative process of forming the device lists where LLE will create an initial list for all definite non-SLAC ICD devices to be used. All systems that are SLAC-owned will be filled by SLAC.
5
Sharing Documentation
Jing Yin
Jing to ensure Jason is on SharePoint and can post the LLE ICD there.
6
Weekly meetings
Jing Yin
Weekly LLE/SLAC meetings every Tuesday.
7
Roadmap for MECU (SLAC)
Jing Yin
Current goal to expand control architecture.
We need to provide support to LLE to adapt to LCLS architecture.
LLE Laser System PDR coming soon. We need to help them adapt to LCLS architecture and identify what SLAC systems LLE cannot use.
We are unsure of the responsible parties for EPICS development of new systems and how much this effort will be.
The near goal is to push out the LLE ICD, identify gaps that do not support their needs, and negotiate how this will be sorted out.
We are confident that any additional devices that need EPICS integration will not cause issues as long as they are recommended by SLAC.
For this stage of the project, we want to ensure that we have a clear path forward for integration.
MECU design to start in November.
Action items
LLE to develop operational procedural document for laser system. Jason Bender
Jason to take first iteration of Device List. SLAC to fill gaps after. Jason Bender
Test Jason, Nate, and Tyler's access to SharePoint.
Jing to send weekly meetings for LLE/SLAC Laser and EPICS development.