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| WOAA01 | The ILC Control System | controls, feedback, monitoring, collider | 271 | |||||
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Since the last ICALEPCS, a small multi-region team has developed a reference design model for the ILC Control System as part of the ILC Global Design Effort. The scale and performance parameters of the ILC accelerator require new thinking in regards to control system design. Technical challenges include the large number of accelerator systems to be controlled, the large scale of the accelerator facility, the high degree of automation needed during accelerator operations, and control system equipment requiring “Five Nines” availability. The R&D path for high availability touches the control system hardware, software, and overall architecture, and extends beyond traditional interfaces into the accelerator technical systems. Software considerations for HA include fault detection through exhaustive out-of-band monitoring and automatic state migration to redundant systems, while the telecom industry’s emerging ATCA standard–conceived, specified, and designed for High Availability–is being evaluated for suitability for ILC front-end electronics. Parallels will be drawn with control system challenges facing the ITER CODAC team.
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| WPPB01 | CTF3 Beam Position Monitor Acquisition System | controls, power-supply, radiation, instrumentation | 395 | |||||
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The CLIC Test Facility 3 (CTF3) is an R&D machine being built to validate concepts that will be used for the Compact Linear Collider (CLIC). Because CTF3 is an instrumentation-intensive machine, a considerable amount of money is put into the acquisition hardware and high-quality cables used to bring the instrument signals to the digitalization crates with as little degradation as possible. The main idea of this new approach is to reduce the distance between the signal source and the A/D conversion, reducing the cost of the cabling. To achieve that, we have developed a radiation hard front-end that we install directly into the accelerator tunnel. This front-end deals with the digitalization of the signals after an analog buffering. Afterwards, the data are sent to a computer through the SPECS field bus. Finally, the digitalized signals are made available to the operation crew thanks to a server implementing the OASIS (Open Analogue Signal Information System) interfaces in the CERN Front-End Software Architecture (FESA). After a presentation of this low-cost solution to BPM acquisition, the paper gives the results of the first integration tests performed in the CTF3 machine.
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| WPPB10 | Virtually There: The Control Room of the Future | controls, collider, positron, laser | 418 | |||||
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Imagine the ILC is up and running. Electrons and positrons collide happily, and scientists are taking data. Suddenly there's a problem with one of the laser wires. All experts are at a meeting on a different continent, but the problem needs to be fixed immediately. Difficult? Not when there's a Global Accelerator Network Multipurpose Virtual Lab (GANMVL) in place. High-speed, high-resolution cameras would allow the faraway experts to look at the fault, a web-based portal would let them access the controls and tools of the system with a simple "single-sign-on" procedure. However, the virtual lab is not just about remote operation. In principle it is already possible to run a control room remotely. This system is radically different in that it takes into account the human aspect of teamwork around the world. The implications of a working virtual control room are enormous. It might revolutionise virtual collaboration in completely different areas. The paper presents the GANMVL tool and the results of the evaluation of the Virtual Lab in production environment and real operations.
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* http://www.eurotev.org/, “European Design Study Towards a Global TeV Linear Collider.” ** http://www.linearcollider.org/cms/, “International linear collider.” |
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