dorsal/arxiv
View SchemaReliability History and Improvements to the ANL 50 MEV H- Accelerator
| Authors | L. I. Donley, V. F. Stipp, F. R. Brumwell, G. E. McMichael |
|---|---|
| Categories | |
| ArXiv ID | physics/0008153 |
| URL | https://arxiv.org/abs/physics/0008153 |
| Journal | eConf C000821 (2000) TUD20 |
Abstract
The H- Accelerator consists of a 750 keV Cockcroft Walton preaccelerator and an Alvarez type 50 MeV linac. The accelerator has been in operation since 1961. Since 1981, it has been used as the injector for the Intense Pulsed Neutron Source (IPNS), a national user facility for neutron scattering. The linac delivers about 3.5x1012 H- ions per pulse, 30 times per second (30 Hz), for multi-turn injection to a 450 MeV Rapid Cycling Synchrotron (RCS). IPNS presently operates about 4,000 hours per year, and operating when scheduled is critical to meeting the needs of the user community. For many years the IPNS injector/RCS has achieved an average reliability of 95%, helped in large part by the preaccelerator/linac which has averaged nearly 99%. To maintain and improve system reliability, records need to show what each subsystem contributes to the total down time. The history of source and linac subsystem reliability, and improvements that have been made to improve reliability, will be described. Plans to maintain or enhance this reliability for at least another ten years of operation, will also be discussed.
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"abstract": "The H- Accelerator consists of a 750 keV Cockcroft Walton preaccelerator and\nan Alvarez type 50 MeV linac. The accelerator has been in operation since 1961.\nSince 1981, it has been used as the injector for the Intense Pulsed Neutron\nSource (IPNS), a national user facility for neutron scattering. The linac\ndelivers about 3.5x1012 H- ions per pulse, 30 times per second (30 Hz), for\nmulti-turn injection to a 450 MeV Rapid Cycling Synchrotron (RCS). IPNS\npresently operates about 4,000 hours per year, and operating when scheduled is\ncritical to meeting the needs of the user community. For many years the IPNS\ninjector/RCS has achieved an average reliability of 95%, helped in large part\nby the preaccelerator/linac which has averaged nearly 99%. To maintain and\nimprove system reliability, records need to show what each subsystem\ncontributes to the total down time. The history of source and linac subsystem\nreliability, and improvements that have been made to improve reliability, will\nbe described. Plans to maintain or enhance this reliability for at least\nanother ten years of operation, will also be discussed.",
"arxiv_id": "physics/0008153",
"authors": [
"L. I. Donley",
"V. F. Stipp",
"F. R. Brumwell",
"G. E. McMichael"
],
"categories": [
"physics.acc-ph"
],
"journal_ref": "eConf C000821 (2000) TUD20",
"title": "Reliability History and Improvements to the ANL 50 MEV H- Accelerator",
"url": "https://arxiv.org/abs/physics/0008153"
},
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