Design and Status of theSuperKEKBAccelerator Control System
M. Iwasaki (KEK)for the SuperKEKB accelerator control groupSuperKEKB projectSuperKEKB  Upgrade of the KEKB B-factory experiment in JapanKEKB accelerator
1km

SuperKEKB projectSuperKEKB  Upgrade of the KEKB B-factory experiment in JapanKEKB accelerator
1km

The KEKB B-factory in Japan
More than1ab-1 data / 11 years
The world highest luminosity

Will be upgraded to SuperKEKB
X40 higher luminositySuperKEKB projectSuperKEKB  Upgrade of the KEKB B-factory experiment in Japan

SuperKEKB accelerator
1km

The KEKB B-factory in Japan
More than1ab-1 data / 11 years
The world highest luminosity

Will be upgraded to SuperKEKB
X40 higher luminosity

KEKB to SuperKEKB• KEKB operation finished in 2010 June.
• SuperKEKB operation will start from 2015 Jan.
Currently under construction

M.Masuzawa

KEKB to SuperKEKB• KEKB operation finished in 2010 June.
• SuperKEKB operation will start from 2015 Jan.
Currently under construction

M.Masuzawa

SuperKEKB Control System• EPICS is used as the main software to control the accelerator
2 layer model• OPI (Operation Interface) --- operation programs on central servers• IOC (I/O Controller) --- equipment controls on frontend computers• Scripting Languages are used for the operation programs
SAD Script/Tk Python/Tk Tcl/TkConsoles
Central Servers

Accelerator Control Network
Frontend Computers
IOC (I/O Controller)

Field Buses

Accelerator
Components~10,000 components# signals to control  ~200,000

IOC (I/O Controller) for SuperKEKB• VME/VxWorks IOC• PLC/Linux IOC- Yokogawa FAM3 series- Linux running on theCPU module(F3RP61)- Install EPICS into
the CPU module
Control the vacuum system,
LLRF, beam collimators, etc.

• PC/Linux IOC

CPU Module
F3RP61I/O Modules

J. Odagiri et al., MOCOBAB02

Field Buses
Many kinds of fieldbus in SuperKEKB

Ethernet, GP-IB, serial, VXI/MXI (for BPM), ARCNET (for magnet power supply) …

We have developed themagnet power supply interface controller module (PSICM)
We upgrade PSICM
for SuperKEKB- Faster data transfer rate
- Support 24, 20, 18-bit DAC- Redundant timing signal input

T. T. Nakamura et al., TUPPC089

Data Archiving System- KEKBLog as a primary data archiving system (file based logging system)- CSS(Control System Studio)-based Archiver + PostgreSQLas the 2nd option data archiving system

CSS installed users PCs can be remotely access to the database
For real-time / historical / trend monitoringSuperKEKB Control Network System
Star network topology

Nikko

Main network switch is locatedat the SuperKEKB CTL room

Tsukuba

Connecting the SuperKEKB CTL roomand 26 sub CTL rooms,
where network switches are located.

Upgrade in Progress
Fuji

Oho

SuperKEKBCTL room

Sub-CTL rooms- 10GbE/1GbE switches- Additional optical cables for theredundant network configuration- New network configuration- Wireless LAN installation into thewhole SuperKEKB accelerator area
M. Iwasaki et al., THPPC009

New Network Configuration
InternetFirewall
SADcomputers

PCPC
PC User PC’sSAD

KEK Laboratory NetworkConsoleConsoleFirewall

NAS

SuperKEKBAccelerator Control Network

New configurationfrom this summer
All computers in theacc. control network
don’t directly connect
to the
KEK laboratory network
 Enhance the security

IOCIOCIOC

Control

SAD

EPICS IOC’sAccelerator control
PC’s

SAD computers
for acc. control

M. Iwasaki et al., THPPC009

Wireless LAN system into the beamline
Access Point

For SuperKEKB Beamline construction, we install
WiressLAN system into the whole tunnel area
125m-length
LCX antenna

Leack Coaxial (LCX) antennaand Access Point at the arc section

M. Iwasaki et al., THPPC009

Timing System for positron injection
In SuperKEKB, we construct the positron Damping Ring
 Positron injection timing scheme become complicatedTo account for DR, new timing system for e+ injection is required

K. Furukawa

H. Kaji et al., THCOCA04
K.Furukawa et al., FRCOBAB04

Beam Abort System
We have developed the faster response Beam Abort System for SuperKEKB
E/O conversion, optical cable to transfer the signal, remove low-pass filters
 Response time improved from 100µs to 20µs

Loss monitors etc.
20 Local(over 130 points) Control rooms

SuperKEKB
Control room

VME
Abort
moduleAbort input
VME
Abort Transfer
module Cables(<3km)......

VME
Abortmodule

Abort
KickerT. Naito, A. Akiyama

Renovation of the computing room

Before the renovation

Renovation of the computing room

This summer, we removed old server racks,
old panel board cabinets, power and signal cables.

Renovation of the computing roomNow under installation of the server racks

SummaryUpgrade of the accelerator control systemfor SuperKEKB is in progress
Currently preparing for the 1st SuperKEKB operation in 2015 January
Please also see the details of the accelerator control system upgradein the following presentations/posters
J. Odagiri et al., MOCOBAB02,“Integration of PLC with EPICS IOC for SuperKEKB Control System”
T. T. Nakamura et al., TUPPC089,“Upgrade of the Power Supply Interface Controller Module for SuperKEKB”
H. Kaji et al., THCOCA04,“Upgrade of Event Timing System at SuperKEKB”
M. Iwasaki et al., THPPC009,“Design and Status of the SuperKEKB Accelerator Control Network System”
K. Furukawa et al., FRCOBAB04“Beam Feedback System Challenges at SuperKEKB Injector Linac”