dorsal/arxiv
View SchemaBeam Switching and Beam Feedback Systems at KEKB Linac
| Authors | K. Furukawa, A. Enomoto, N. Kamikubota, T. Kamitani, T. Matsumoto, Y. Ogawa, S. Ohsawa, K. Oide, T. Suwada |
|---|---|
| Categories | |
| ArXiv ID | physics/0008134 |
| URL | https://arxiv.org/abs/physics/0008134 |
| Journal | eConf C000821 (2000) TUE10 |
Abstract
The KEK 8-GeV electron / 3.5-GeV positron linac has been operated with very different beam specifications for downstream rings, KEKB, PF and PF-AR. For the reliable operation among these beam modes intelligent beam switching and beam feedback systems have been developed and used since its commissioning. A software panel is used to choose one of four beam modes and a switching sequence is executed in about two minutes. Most items in a sequence are simple operations followed by failure recoveries. The magnet standardization part consumes most of the time. The sequence can be re-arranged easily by accelerator operators. Linac beam modes are switched about fifty times a day using this software. In order to stabilize linac beam energy and orbits, as well as some accelerator equipment, about thirty software beam feedback loops have been installed. They have been utilized routinely in all beam modes, and have improved its beam quality. Since its software interfaces are standardized, it is easy to add new feedback loops simply defining monitors and actuators.
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"abstract": "The KEK 8-GeV electron / 3.5-GeV positron linac has been operated with very\ndifferent beam specifications for downstream rings, KEKB, PF and PF-AR. For the\nreliable operation among these beam modes intelligent beam switching and beam\nfeedback systems have been developed and used since its commissioning.\n A software panel is used to choose one of four beam modes and a switching\nsequence is executed in about two minutes. Most items in a sequence are simple\noperations followed by failure recoveries. The magnet standardization part\nconsumes most of the time. The sequence can be re-arranged easily by\naccelerator operators. Linac beam modes are switched about fifty times a day\nusing this software.\n In order to stabilize linac beam energy and orbits, as well as some\naccelerator equipment, about thirty software beam feedback loops have been\ninstalled. They have been utilized routinely in all beam modes, and have\nimproved its beam quality. Since its software interfaces are standardized, it\nis easy to add new feedback loops simply defining monitors and actuators.",
"arxiv_id": "physics/0008134",
"authors": [
"K. Furukawa",
"A. Enomoto",
"N. Kamikubota",
"T. Kamitani",
"T. Matsumoto",
"Y. Ogawa",
"S. Ohsawa",
"K. Oide",
"T. Suwada"
],
"categories": [
"physics.acc-ph"
],
"journal_ref": "eConf C000821 (2000) TUE10",
"title": "Beam Switching and Beam Feedback Systems at KEKB Linac",
"url": "https://arxiv.org/abs/physics/0008134"
},
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