EPICSEnvironmentatJ-PARCNeutrinoFacility
K.Nakayoshi,K.Sakashita,T.Nakadaira
forJ-PARCNeutrinoFacility
2017/05/16 Spring2017EPICScollaborationmeeting@KURRI 1
295Km
T2K(Tokaito Kamioka)Experiment
J-PARC@TokaiSK@Kamioka
2017/05/16 Spring2017EPICScollaborationmeeting@KURRI 3
Along-baselineneutrinooscillationexperimentatJ-PARC
• T2KhasbeentakingphysicsdatafromJan.2010.• InJuly2013,muonν toelectronν transformationhasbeenestablished.• NowT2KissearchingforCPsymmetryviolationinneutrino
NeutrinoFacilityatJ-PARC
2017/05/16 Spring2017EPICScollaborationmeeting@KURRI 4
280m
ND280BeamDump
TargetStation
BeamDump
ExtractionPoint
MuonMonitors
110m
280m
295kmToKamioka
TargetHorns
pµn
DecayVolume
NearNeutrinoDetectors
- Stableoperationat470kWisachieved- 2.2x1014ppp@30GeV,2.48srep.
- Futureupgradetoward1.3MWisplanned
NeutrinoFacilityatJ-PARC
2017/05/16 Spring2017EPICScollaborationmeeting@KURRI 5
- 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
2017/05/16 Spring2017EPICScollaborationmeeting@KURRI 6
NU:NeutrinoFacility
INTRODUCTIONOFBEAMLINECONTROLATNEUTRINOFACILITY
2017/05/16 Spring2017EPICScollaborationmeeting@KURRI 7
RequirementsfortheBeamlineOperationatNU
• Onemistakenshotcanpotentiallydoseriousdamagetothebeamlineequipment.
• InformationsharingaboutbeamstatusbetweentheacceleratorsandNeutrinofacilityisessentialforsafetyoperation
2017/05/16 Spring2017EPICScollaborationmeeting@KURRI 8
WeutilizeEPICSforbeamlinecontrol/monitoring
FeaturesofBeamlineControlatNU
Normal-ConductingMagnets
InterlockofNCMagnets
Avarietyofdevicesarecontrolled/monitoredbyEPICSframework
APPLICATIONEXAMPLESOFEPICSATNEUTRINOFACILITY
2017/05/16 Spring2017EPICScollaborationmeeting@KURRI 10
EPICSIOCEnvironmentatNUWeadoptedmicroservers“Saba-taro”forEPICSIOCinplaceofcommodityPCs.IthadbeeninitiallyR&D’d andusedsuccessfullyatMR.
2017/05/16 Spring2017EPICScollaborationmeeting@KURRI 11
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
2017/05/16 Spring2017EPICScollaboration meeting@KURRI 12
MagnetPowerSupplyControl
2017/05/16 Spring2017EPICScollaborationmeeting@KURRI 13
#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
2017/05/16 Spring2017EPICScollaboration meeting@KURRI 14
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
2017/05/16 Spring2017EPICScollaborationmeeting@KURRI 15
• 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?
2017/05/16 Spring2017EPICScollaborationmeeting@KURRI 16
Developmentofthebeamlineexpertsystem
• ThesystemacquiresEPICSrecordsofbeamlinestatusevery1sec.– usualcase:Watchesthebeamlinestatustodetectasignsofanomaliesinequipment– Interlockcase:Showsdetailsofinterlockandrecoverymethodforbeamlineshifter
2017/05/16 Spring2017EPICScollaborationmeeting@KURRI 18
BeamlineInterlocks
faultrecoverymethod
Radiationmonitors
InterlockpatternsofpastMPSs
BeamlineShifter
Knowledge-BaseInferenceengine
CABeamlinedevices
EPICSRecords
Developmentofthebeamlineexpertsystem(Contd.)
2017/05/16 Spring2017EPICScollaborationmeeting@KURRI 19
• Currentstatus–Weinvestigatedthepastinterlockpatternandimportantinterlockpatternwaspickedup.
–WedevelopedaCAclientforthedatainputpart.– Nowweareevaluatingainferencepartusingthepastinterlockpattern.
Summary• EPICSenvironmentatJ-PARCneutrinofacilitywasintroduced.EPICSframeworkisessentialforhighintensitybeamoperationatneutrinofacility.
• InneutrinofacilityatypicalconfigurationforthecontrolsystemiscombinationofPLCandEPICS.Asactualexamples,themagnetPScontrolandinterlocksystemswereintroduced.
• Wearedevelopingabeamlineexpertsystemforthesafetyandstablebeamoperation.
2017/05/16 Spring2017EPICScollaboration meeting@KURRI 20
WearegratefulforEPICScommunity,especiallyMRcontrolgroupofJ-PARC