EPICSEnvironmentatJ-PARCNeutrinoFacility

K.Nakayoshi,K.Sakashita,T.Nakadaira

forJ-PARCNeutrinoFacility

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J-PARCJapanProtonAcceleratorResearchComplex

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295Km

T2K(Tokaito Kamioka)Experiment

J-PARC@TokaiSK@Kamioka

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Along-baselineneutrinooscillationexperimentatJ-PARC

• T2KhasbeentakingphysicsdatafromJan.2010.• InJuly2013,muonν toelectronν transformationhasbeenestablished.• NowT2KissearchingforCPsymmetryviolationinneutrino

NeutrinoFacilityatJ-PARC

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280m

ND280BeamDump

TargetStation

BeamDump

ExtractionPoint

MuonMonitors

110m

280m

295kmToKamioka

TargetHorns

pµn

DecayVolume

NearNeutrinoDetectors

- Stableoperationat470kWisachieved- 2.2x1014ppp@30GeV,2.48srep.

- Futureupgradetoward1.3MWisplanned

NeutrinoFacilityatJ-PARC

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- 420kW(2x1014ppp@30GeV,2.48srep.)- about1MJ/pulse

750kW,~1Hz

Normal-ConductingMagnets

beam-loss, profile

Contents

• IntroductionofbeamlinecontrolatNU– Requirementsforthebeamlinecontrol– FeaturesofbeamlinecontrolatNU

• ApplicationsexamplesofEPICSatNU–MagnetPScontrol andinterlocksystem–Archivers,GUIpanels

• Developmentofthebeamlineexpertsystem• Summary

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NU:NeutrinoFacility

INTRODUCTIONOFBEAMLINECONTROLATNEUTRINOFACILITY

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RequirementsfortheBeamlineOperationatNU

• Onemistakenshotcanpotentiallydoseriousdamagetothebeamlineequipment.

• InformationsharingaboutbeamstatusbetweentheacceleratorsandNeutrinofacilityisessentialforsafetyoperation

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WeutilizeEPICSforbeamlinecontrol/monitoring

FeaturesofBeamlineControlatNU

Normal-ConductingMagnets

InterlockofNCMagnets

Avarietyofdevicesarecontrolled/monitoredbyEPICSframework

APPLICATIONEXAMPLESOFEPICSATNEUTRINOFACILITY

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EPICSIOCEnvironmentatNUWeadoptedmicroservers“Saba-taro”forEPICSIOCinplaceofcommodityPCs.IthadbeeninitiallyR&D’d andusedsuccessfullyatMR.

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AmicroserverIOC

IOCsatTargetStation

OS ScientificLinux6.8,x86_64

EPICSversion 3.14.12

# ofIOCs 22

Total#ofCHs ~13000

IOCplatform Microserver(CeleronJ1900,Mem:8GB)

6IOCs

1IOC

2IOCs

6IOCs

7 IOCs

OldIOCs

SlowControlFrameworkatNU

• Slowcontrol/monitorisbasedonPLC+EPICS– YokogawaFA-M3PLC+netDev (device/driversupport)

– CommonschemewithJ-PARCMR

• ApplicationexamplesatNU–MagnetPowersupplycontrolsystem– InterlocksystemforNCmagnetPSs

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MagnetPowerSupplyControl

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#ofMagnets # ofPSs(PLCs) # of IOCs

HORN 3 2(2) 1

SC 28 1(1) 1

SCcollector 6 6(1) 1

NC 21 21(21) 2

21NCPowersupplies

ANCPowersupplyandPLCMagnetsanditspowersuppliescontrolledbyPLC/EPICS

2HORNPowersupplies ASCPowersupply

VarioustypeofmagnetpowersuppliesarecontrolledbyPLC/EPICS

InterlockSystemforNCMagnetPowerSupplies

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PLCanddigitalpanel-metersforInterlockofNCmagnetPS

AninterlocksystemforcurrentchangeofNCPSsbypanelmeters(comparator)ThepanelmetersarecontrolledbyPLC+EPICS

PLCDPMs

EPICSIOC

MPS

HI/LO Status

Network

HI/LOThr.Setting

GUI

RS485DCCTOutput

NCPS(x21)

Curr./Thr.Setting

Wehavedevelopedtheinterlocksystemin2012.From2012to2013,wecaught3failures bythissystem.In2014wereplacedallthePSsforNCmagnets.Afterthereplacement,wecaughtnofailuressofar.

ChannelArchiver

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• WeuseChannelArchiverandArchiveViewer• Archiveddatasizeisincreasingyearbyyear• Watchingandexaminingnext-generationarchiver

– Anysuggestion?ArchiverAppliance?

150 374 607

19811605

2633

36703869

0

1000

2000

3000

4000

2009 2010 2011 2012 2013 2014 2015 2016

ArchiveddatasizeforeachyearGByteOS ScientificLinux6.4,x86_64

EPICSver. 3.14.11

# ofServers 2 (DELLPET620,T630)

#ofengines 27

GUI,Panels• Onlinemonitoringdisplayforbeamlineshift– weuseroot,EDMandCaPython forGUI– Anysuggestion?CSS?

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DEVELOPMENTOFTHEBEAMLINEEXPERTSYSTEM

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Developmentofthebeamlineexpertsystem

• ThesystemacquiresEPICSrecordsofbeamlinestatusevery1sec.– usualcase:Watchesthebeamlinestatustodetectasignsofanomaliesinequipment– Interlockcase:Showsdetailsofinterlockandrecoverymethodforbeamlineshifter

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BeamlineInterlocks

faultrecoverymethod

Radiationmonitors

InterlockpatternsofpastMPSs

BeamlineShifter

Knowledge-BaseInferenceengine

CABeamlinedevices

EPICSRecords

Developmentofthebeamlineexpertsystem(Contd.)

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• Currentstatus–Weinvestigatedthepastinterlockpatternandimportantinterlockpatternwaspickedup.

–WedevelopedaCAclientforthedatainputpart.– Nowweareevaluatingainferencepartusingthepastinterlockpattern.

Summary• EPICSenvironmentatJ-PARCneutrinofacilitywasintroduced.EPICSframeworkisessentialforhighintensitybeamoperationatneutrinofacility.

• InneutrinofacilityatypicalconfigurationforthecontrolsystemiscombinationofPLCandEPICS.Asactualexamples,themagnetPScontrolandinterlocksystemswereintroduced.

• Wearedevelopingabeamlineexpertsystemforthesafetyandstablebeamoperation.

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WearegratefulforEPICScommunity,especiallyMRcontrolgroupofJ-PARC

BackupSlides

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