KEK and Super KEKB kazuro furukawa

KEK and Super. KEKB < kazuro. furukawa @ kek. jp > Recent progress at KEK and Plans for Super. KEKB Kazuro Furukawa for Control Groups at KEK < kazuro. Furukawa @ kek. jp > October 11, 2010. EPICS Collaboration Meeting / BNL Kazuro Furukawa, KEK, Oct. 2010. 1

KEK and Super. KEKB Accelerators at KEK Several Accelerator Projects are Running Mt. Tsukuba J-PARC (at Tokai Site) (Super)KEKB PF-AR ATF STF c. ERL PF Linac EPICS Collaboration Meeting / BNL 50 km from Tokyo 70 km to Tokai 300 km to Kamioka Kazuro Furukawa, KEK, Oct. 2010. 2

KEK and Super. KEKB Yamamoto/K amikubota EPICS Collaboration Meeting / BNL Kazuro Furukawa, KEK, Oct. 2010. 3

KEK and Super. KEKB Beam Power　[k. W] ビーム出力　[k. W] 2010 Operational Highlights 100 Yamamoto/K amikubota Beam Power history of 30 Ge. VMR Feb. 24, 2010 First Neutrino Event from J-PARC observed at Super Kamiokande 80 60 40 20 0 2月 Feb 3月 Mar 4月 April 5月 May 6月 June 7月 July Delivers beam at 50 KW to Nu. Exp. EPICS Collaboration Meeting / BNL Kazuro Furukawa, KEK, Oct. 2010. 4

KEK and Super. KEKB Plan for Future Yamamoto/K amikubota Plan for MR Beam Power for Nu Exp. ・Linac 400 Me. V upgrade for Higher RCS beam power ・Higher MR rep. rate ACS: Acceleration Structure for 400 Me. V Linac Upgrade EPICS Collaboration Meeting / BNL Kazuro Furukawa, KEK, Oct. 2010. 5

KEK and Super. KEKB Data Archiving in J-PARC MR control system Yamamoto/K amikubota Overview of J-PARC MR data archive system: “cadump” is a program storing snapshot data, including waveform, into disk system. ROOT and SAD data formats are supported. It also use data compression, after Feb. 2010. From “DATA ARCHIVE SYSTEM FOR J-PARC MAIN RING” by N. Kamikubota et al. , Proceedings of IPAC’ 10, Kyoto, Japan EPICS Collaboration Meeting / BNL Kazuro Furukawa, KEK, Oct. 2010. 6

KEK and Super. KEKB Control Systems at KEK/Tsukuba (1) u Super. KEKB v Will inherit resources from KEKB (and TRISTAN) ³ Partial budget for positron was approved (? ) u Linac (electron/positron) v Inject beam to (Super)KEKB, PF-AR ³ Pulse-to-pulse beam modulation u PF (Photon Factory) v Moved to EPICS environment ³ Mainly with Linux-VME u PF-AR (Photon Factory Advanced Ring) v Mostly the same environment as KEKB ³ Many CAMAC installations EPICS Collaboration Meeting / BNL Kazuro Furukawa, KEK, Oct. 2010. 7

KEK and Super. KEKB Control Systems at KEK/Tsukuba (2) u. ATF (Accelerator Test Facility) v Vista Controls environment with CAMAC ³ Linux and socket environment with some EPICS devices u. STF (Superconducting RF Test Facility) v Test facility for ILC ³ EPICS with Linux, ATCA test, PLC, … uc. ERL (Compact ERL) v Being built for ERL development ³ May share the resources with other accelerators u. Sharing resources as much as possible EPICS Collaboration Meeting / BNL Kazuro Furukawa, KEK, Oct. 2010. 8

KEK and Super. KEKB Accelerator Controls u. VME + Unix (~1995) v Standard EPICS configuration ³ With many third layer field networks u. Every controller on network (1993~1997) v Single layer in physical, two layer logical u. Every controller with EPICS IOC (2005~) v Channel Access everywhere ³ For longer term maintenance EPICS Collaboration Meeting / BNL Kazuro Furukawa, KEK, Oct. 2010. 9

KEK and Super. KEKB Transition of Controls Mini Computer Unix VME/IOC Field Networks TCP/IP Channel Access Device Controller Device IOC Mini Computer Device Controller EPICS Collaboration Meeting / BNL Kazuro Furukawa, KEK, Oct. 2010. 10

KEK and Super. KEKB Embedded IOC in Yokogawa’s PLC u. More than 150 PLCs were employed at Linac v All through TCP/IP network since 1993 ³ Successful to reduce resource consumption u. Now Linux CPU is available (2008~) v 533 MHz PPC, 128 MB RAM, 2 x. Ethernet, USB v Utilize realtime feature of Kernel 2. 6 (J. Odagiri et al) ³ EPICS PV response time <150 msec (incl. module delay) u. Ladder sequence CPU can coexist v Variable sharing possible EPICS Collaboration Meeting / BNL Kazuro Furukawa, KEK, Oct. 2010. 11

KEK and Super. KEKB Simpler PLC Usage under EPICS Conventional PLC usage OPI CA Clients with asynchronous access IOC (Logics) OPI CA Clients Ladder CPU (Logics) FAM 3 PLC I/O Modules F 3 RP 61 IOC FAM 3 PLC I/O Modules If necessary, we can combine OPI CA Clients F 3 RP 61 IOC Ladder CPU FAM 3 PLC I/O Modules Logics are confined in PLC, and management is easier EPICS Collaboration Meeting / BNL Kazuro Furukawa, KEK, Oct. 2010. 12

KEK and Super. KEKB u. Many medium-speed controllers implemented v KEKB, Linac, J-PARC, PF, c. ERL, …, Taiwan/TLS, (Korea/PAL, Beijing/IHEP) u. Image processing module available u. Discussing on EVR module with SSRF/Shanghai u<http: //www-linac. kek. jp/cont/epics/f 3 rp 61/> EPICS Collaboration Meeting / BNL Kazuro Furukawa, KEK, Oct. 2010. 13

KEK and Super. KEKB BPM at Linac and BT u BPM need only 0. 1 mm resolution v Using ~30 coefficients per BPM u Many signals are combined into one waveform digitizer u Again reduction of resources u Recent Embedded IOC Solution v Much helped by Dr. Yong Hu 100 BPMs 24 x DPO 7104 Clients u Old configuration 100 BPMs 19 x TDS 680 B EPICS Collaboration Meeting / BNL 19 VMEs ~5 Unix Clients Kazuro Furukawa, KEK, Oct. 2010. 14

KEK and Super. KEKB BPM DAQ u Tektronix DPO 7104 can acquire data at >50 Hz. v With embedded EPICS, under pulse-to-pulse beam modulation u Beam modes are recognized by events through CA network. v Missed less than once in million times u Clients can monitor data of an interested beam mode. u 24 oscilloscopes are installed for Linac, and 4 for BT. u 200 BPMs are synchronized for Linac and BT. EPICS Collaboration Meeting / BNL Kazuro Furukawa, KEK, Oct. 2010. 15

KEK and Super. KEKB Many other Embedded IOC u. Other oscilloscope-based IOCs v For pulsed device monitors (M. Satoh et al) u. TDC/Linac with Linux/ARM (Armadillo) v Timing consistency surveillance (S. Kusano et al) u. MPS manager with Linux/FPGA (Suzaku) v For J-PARC and c. ERL, etc (A. Akiyama et al) u. Magnet PS with Linux/ARM(or FPGA) v Two prototypes for Super. KEKB (T. Nakamura et al) EPICS Collaboration Meeting / BNL Kazuro Furukawa, KEK, Oct. 2010. 16

KEK and Super. KEKB Operation Improvement (base of Super. KEKB) Belle/KEK May. 2000 Apr. 2003 Dual Bunch e+ Feb. 2005 Continuous Injections Dec. 2008 Crab Cavities and Simultaneous Injection EPICS Collaboration Meeting / BNL Kazuro Furukawa, KEK, Oct. 2010. 17

KEK and Super. KEKB Plan (1) u For nano-beam scheme with 40 -times higher luminosity v Many new facilities should be required u Start based on the existent environment v With additional concept of CA everywhere u Help device groups to have better global controls v Replacement of old installations such as CAMAC v Solutions not only VME but also other types of controllers, embedded EPICS if possible u Faster networks for the groups who can build controllers by themselves u Better connection to operational environments v Keeping SAD environment, etc v Monitoring at offices EPICS Collaboration Meeting / BNL Kazuro Furukawa, KEK, Oct. 2010. 18

KEK and Super. KEKB Plan (2) u Archiving scheme and viewer v Maybe existing KEKBlog and channel archivers ³ New viewer should be developed u Alarm handler v CSS or Python (to simulate KEKBalarm) ³ Should evaluate soon u Operational Log v In house, two versions with different origins ³ Postgres + (Python/Zope and Flash/Flex) u Scripts v SADscript/Tk, Python/Tk, (decreasing Tcl/Tk) u Displays v Edm and/or CSS EPICS Collaboration Meeting / BNL Kazuro Furukawa, KEK, Oct. 2010. 19

KEK and Super. KEKB Plan (3) u. Interviews to each device groups v Planning to have monthly meeting and training ³ To collect user requirements v Partially successful for old hardware replacements ³ Not yet effective for new functionalities w Whether both sides do not have experiences uex. Global orbit feedback w We don’t need to stabilize the orbit other than the collision point v Monitor group is basically responsible for this ³ Under development with several candidates ³ But they still need some data path EPICS Collaboration Meeting / BNL Kazuro Furukawa, KEK, Oct. 2010. 20

KEK and Super. KEKB Simultaneous Injection u. Super. KEKB injections with shorter lifetime u. PF top-up injection for higher quality experiments u. Enjoyed Hardware and Software Installation One by one u. Reduced the Beam Switch Time from 10 -120 seconds to 20 ms u. Beam currents are kept within 1 m. A (~0. 05% for KEKB), 0. 05 m. A (~0. 01%, PF) u. Much more complicated with bucket selections at damping ring and main ring u. Should add PF-AR as well (4 rings! with different beams) EPICS Collaboration Meeting / BNL Kazuro Furukawa, KEK, Oct. 2010. 21

KEK and Super. KEKB Event System for Simultaneous Injection u MRF’s series-230 Event Generator / Receivers u 114. 24 MHz event rate, u VME 64 x and Vx. Works v 5. 5. 1 50 Hz fiducials u EPICS R 3. 14. 9 with Dev. Sup v 2. 4. 1 u. More than hundred u 17 event receivers up to now 50 Hz-Analog/Timing data Event Generator Central u. Multi/single-mode fiber u. Timing precision is < 10 ps. SH_A 1 KL_B 5/B 6 SB_B Injection SB_A e− Gun ARC v < 1 ps with external module. 96 ns e– BT (PF: 2. 5 Ge. V, 0. 1 n. C) >100 ns Cont-ABC KL_51/52 SB_C SB_1 SB_2 SB_3 SB_4 SB_5 e+ BT (KEKB: 3. 5 Ge. V, 2 n. C) >100 ns e+ Target Cont-1 Cont-2 96 ns Cont-3 Cont-4 Cont-5 Event Receivers EPICS Collaboration Meeting / BNL e– BT (KEKB: 8 Ge. V, 2 n. C, PFAR: 3. 0 Ge. V, 0. 1 n. C) Kazuro Furukawa, KEK, Oct. 2010. 22

KEK and Super. KEKB Parameters u. Parameters switched via event system v. LLRF phase/timing : 14 x 4 ³Overall energy profile, dual-bunch energy equalization, final energy adjustment v. HP RF timing : ~60 ³Energy profile and backup management v. Gun voltages, picosecond delay : 4 ³Beam charge selection, dual bunch selection, bunching v. Pulsed magnets/solenoid : 14 ³Beam transport selection, orbit controls, positron focusing v. Injection phase interface : 2 v. Bucket selection interface : 2 v. BPM : ~100 x 3 u. Sufficient for fast beam mode switching u. Integrity monitors soon EPICS Collaboration Meeting / BNL Kazuro Furukawa, KEK, Oct. 2010. 23

KEK and Super. KEKB Three Virtual Accelerators u Controls and instrumentations are essentially mode-dependent, and mutually independent u Selecting a real machine out of three virtual machines v Managing three parameter sets (four under Super. KEKB environment) e− Gun ARC e– BT (PF: 2. 5 Ge. V, 0. 1 n. C) PF Injection e+ Target Event-based Control System e− Gun ARC KEKB-LER Injection Primary e– (4 Ge. V, 10 n. C) e+ BT (KEKB: 3. 5 Ge. V, 0. 6 n. C) e+ Target e− Gun ARC KEKB-HER Injection e+ Target e– BT (KEKB: 8 Ge. V, 1. 2 n. C) EPICS Collaboration Meeting / BNL Kazuro Furukawa, KEK, Oct. 2010. 24

KEK and Super. KEKB Three-fold Independent Closed Loops u Feedback loop software act on one of three virtual machines v Managing independent parameter sets e− Gun ARC e– BT (PF: 2. 5 Ge. V, 0. 1 n. C) PF Injection e+ Target Event-based Control System e− Gun ARC KEKB-LER Injection Primary e– (4 Ge. V, 10 n. C) e+ BT (KEKB: 3. 5 Ge. V, 0. 6 n. C) e+ Target e− Gun ARC KEKB-HER Injection e+ Target e– BT (KEKB: 8 Ge. V, 1. 2 n. C) EPICS Collaboration Meeting / BNL Kazuro Furukawa, KEK, Oct. 2010. 25

KEK and Super. KEKB Summary u. Controls Have Interface to Every System in Accelerators v We can Enjoy Accelerator u. There should be Room to Establish Further Controls Utilizing Beam Monitors, RF Monitors, and More v With Phronesis, Ability to understand the Universal Truth EPICS Collaboration Meeting / BNL Kazuro Furukawa, KEK, Oct. 2010. 26

KEK and Super. KEKB Thank you EPICS Collaboration Meeting / BNL Kazuro Furukawa, KEK, Oct. 2010. 27