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Controls, diagnostics and tools

Controls, diagnostics and tools. JFC and JLSA. Control. The control system was developed by a collaboration of control system developers at four laboratories : Lawrence Berkeley National Laboratory (LBNL) Los Alamos National Laboratory (LANL) Brookhaven National Laboratory (BNL)

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Controls, diagnostics and tools

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  1. Controls, diagnostics and tools JFC and JLSA

  2. Control The control system was developed by a collaboration of control system developers at four laboratories : • Lawrence Berkeley National Laboratory (LBNL) • Los AlamosNationalLaboratory (LANL) • Brookhaven National Laboratory (BNL) • Oak Ridge National Laboratory (ORNL).

  3. Best Ever Alarm System Toolkit This is the distributed alarm system developed at the SNS, • consisting of Alarm Server that monitor alarm triggers in the control system. • CSS user interface for viewing current alarms as a table or hierarchical tree. • Relational Database for configuration and logging. • Web reports to analyze the number and frequency of alarms, search the alarm configuration etc. The user interface allows operators to Access guidance on how to handle a specific alarm • Invoke links to related operator interfaces or other CSS tools. • Acknowledge alarms. • Edit the configuration.

  4. Best Ever Alarm System Toolkit All current alarms – active – ack’ed Voice Annunciation BEAST operational at SNS since Feb’09. Alarm GUI is ‘best ever’ for SNS

  5. RF System • RF System overview screen gives status of entire Linac • Status of entire Linac RF system is presented • Provides links to more detailed RF system screens • Provides for automated start-up and shut-down of high-power RF system via EPICS sequencers

  6. RF System LLRF Graphic Users-Interface Operators screen displays all the control and administrative information important to the operation, and hosts some of the automated operation sequences.

  7. BLM SYSTEM • The SNS Beam Loss Monitor (BLM) system consists of 362 radiation detectors measuring secondary radiation due to beam loss. The BLMs are used as MPS device to shutdown the beam if the integral loss is above threshold. • The BLMs are distributed along the whole SNS machine. Since the beam parameters are different in different parts of the machine (2.5MeV) injected in linac and 1GeV hitting the target) the nature of losses is very different. In addition to energy spread, the H-/proton beam pulse duration varies from 1 ms in linacto less than 1 uS in RTBT. • IC = ionization chambers • ND= The neutron detectors • PMT = Photomultiplier Tube • The BLM system is also used as a beam tuning diagnostic device

  8. BLM SYSTEM SNS beam loss pattern during machine tuning

  9. Beam Position and Phase Monitors (BPM) • The beam phase monitors are the main tools for the linac tune up which uses Time-Of-Flight algorithms. Position measurements are used for trajectory correction in the linac, ring injection set up and centering of beam on the dumps and target.

  10. The wire scanners • The H- beam is too intense to allow use of the wire scanners during full power operation. The duty factor must be cut back enough to prevent damage to the signal wires. The front panel of the LabVIEW-based wire-scanner application

  11. Fix Displays

  12. WorkingSet

  13. Summary • controls of the diagnostics done a lot in LABView(mainly for BI), Extensible Display Manager (Synoptic), Java is coming. • GUI mainly provided by operators; based on synoptic • Same diagnostic tools : BLM, BPM, Wire Scanners, SEM-grid,… • Same Control tools: LASER = BEAST, FIX Display,WorkingSet, Knobs, there is an equivalent YASP. • Java starts to replace the older GUI application

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