Target Online Software

J. Leaver

01/12/2009

04/18/23 Imperial College 2

Target Controller Software

• Software for Stage 1 upgrade nearing completion

– Hardware driver framework in place

• User interface has been defined

– Have implemented all EPICS server / client functionality

• Tested using ‘virtual’ Target Controller Device

• Remaining work: implement low-level hardware driver ‘plug-in’

– Software/firmware interfacing task commenced this week

– Code should be complete by end of December

04/18/23 Imperial College 3

UML Diagrams: EPICS Servers

Data Server(Hosts output data + status PVs)

Control Server(Hardware interface)

04/18/23 Imperial College 4

UML Diagrams: EPICS Client

Client Library(Server access)

04/18/23 Imperial College 5

UML Diagrams: EPICS Client GUI

User Interface

04/18/23 Imperial College 6

Target Controller Interface

• Client-side GUI functionality includes:

– Set delays

– Set/monitor Target depth

– Park/hold

– Start/stop actuation

– Monitor hardware status

04/18/23 Imperial College 7

Other Target Control Software

• Old control system still required for a couple more months…

• Current Target delay generator has become increasingly awkward

– Bundled software only runs under Windows

– No Windows PCs on Controls Network!

• Nor do we want any…

• Now have a native Linux interface

– Communicates via RS232

– Integrates with main controls application launcher

04/18/23 Imperial College 8

DAQ Software: Beam Loss Analysis

• New beam loss calculation method

– Simple integration of beam loss during spill in which Target is dipping

– Scaled to units of V-ms

• Matches technique used by ISIS

• Introduced following Craig & Linda’s investigations during November runs

• May require some additional scaling for best agreement with ISIS

– To be tested during next scheduled runs

BLM7SUM: -0.399 V-ms(ISIS beam loss for this run: ~0.4 V-ms)

04/18/23 Imperial College 9

DAQ Software: Calibration

• Target DAQ enables routine acquisition of calibration events

• Calibration Results Viewer extracts Target depths & generates histogram

– Should produce similar results to Paul H’s analysis

– Needs to be verified!