Araki 1978. ‘Yuriwaka and Ulysses. The Homeric Epics at the Court of Ouchi Yoshitaka’
1 A PC/Linux-based Control System with EPICS for RFGTB S. Araki, K. Hirano, J. Odagiri, T.T....
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Transcript of 1 A PC/Linux-based Control System with EPICS for RFGTB S. Araki, K. Hirano, J. Odagiri, T.T....
![Page 1: 1 A PC/Linux-based Control System with EPICS for RFGTB S. Araki, K. Hirano, J. Odagiri, T.T. Nakamura and N. Terunuma High Energy Research Accelerator.](https://reader036.fdocuments.in/reader036/viewer/2022062516/56649dc05503460f94ab4fed/html5/thumbnails/1.jpg)
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A PC/Linux-based Control A PC/Linux-based Control System with EPICS for System with EPICS for
RFGTB RFGTB S. Araki, K. Hirano, J. Odagiri, T.T. Nakamura
and N. Terunuma
High Energy Research Accelerator Organization, KEK
EPICS Meeting @RICOTTI
2004, Dec 10, Tokai
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ContentsContents
RF-Gun Test Bench (RFGTB) in KEK
Control System of RFGTB
Running EPICS on PC/Linux
EPICS for small-scaled experimental facility
Conclusions
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RF-Gun Test Bench (RFGTB)RF-Gun Test Bench (RFGTB)
The aim of RFGTB is to develop a n RF-Gun that produces a high flux x-ray by compton scattering of Laser light
Joint project by National Institute of Radiological Science (NIRS) and KEK
Multi-bunch photo-cathode RF-Gun
Constructed in Assembly Hall at KEK
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RF-Gun Test Bench (RFGTB)RF-Gun Test Bench (RFGTB)
– Beam energy (max) : 7 MeV
– Beam charge (max) : 5 nC/bunch
– Number of benches (max) : 100 /pulse
– RF frequency : 2856 MHz
– Laser wavelength : 266 nm
– Solenoid magnetic field (max) : 3.2 kGauss
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RF-Gun in RFGTBRF-Gun in RFGTB
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Schematic Diagram of the Schematic Diagram of the Control SystemControl System
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PC/Linux running IOC core PC/Linux running IOC core and OPI toolsand OPI tools
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Control Room of RFGTBControl Room of RFGTB
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FA-M3 connected toFA-M3 connected tothe PC/Linux IOCthe PC/Linux IOC
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CC/NETCC/NET
Pipeline operation of CAMAC cycle
– Designed for DAQ application
– Very high transfer rate (up to 3 MB/sec)
PC/104-Plus SBC embedded
– Linux (kernel 2.4)
– Comes with Kernel level driver & user level library
Can work as an IOC
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CC/NET in operationCC/NET in operationas an IOCas an IOC
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Sequencer Logic forSequencer Logic forRF-conditioningRF-conditioning
Main purpose:
– automatic control of the aging procedure
We developed:
– sequencer programs using SNL
– control panel using MEDM
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Control Panel (MEDM)Control Panel (MEDM)
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Status Panel (MEDM)Status Panel (MEDM)
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Pros and Cons (Pros)Pros and Cons (Pros)
PC/Linux-based system with EPICS gives us:
– Cost-effective solution on both HW and SW
– Easy way to integrate control subsystems on CA over the Ethernet connection
– Rapid debugging cycle, since booting up an IOC-program is just a snap
– Lots of templates of application software from existing other large-scaled accelerator control systems
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Pros and Cons (Cons)Pros and Cons (Cons)
EPICS takes up some time from new comers:– To get familiar with the environment for IOC
application development
– To install OPI tools, since it requires some skills on Unix, and can be a hustle in some cases
– To choose appropriate tools from many options
A packaged distribution with minimum tool kits for beginners will be highly appreciated by new comers
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ConclusionsConclusions
We have built a fully-PC/Linux-based control system with EPICS for RFGTB operation
Conditioning of the RF-Gun is being carried out with the control system successfully
The system uses most of the essential tools of EPICS, such as IOCs, a display tool, and a channel archiving tool
Something in order to ease new comers into EPICS is required
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Thanks for your attention!
ARAKI, Sakae