First Experimental Demonstration of Beam Storage by Three-Dimensional Spiral Injection Scheme for Ultra-Compact Storage Rings
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arXiv
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| Autori principali: | , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866910022886227968 |
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| author | Matsushita, R. Iinuma, H. Ohsawa, S. Nakayama, H. Furukawa, K. Ogawa, S. Saito, N. Mibe, T. Rehman, M. A. |
| author_facet | Matsushita, R. Iinuma, H. Ohsawa, S. Nakayama, H. Furukawa, K. Ogawa, S. Saito, N. Mibe, T. Rehman, M. A. |
| contents | Three-dimensional spiral injection enables beam storage in ultra-compact rings with nanosecond revolution periods. We report first storage of a $297 \, \mathrm{keV/}c$ electron beam in a $22 \,\mathrm{cm}$ weak-focusing ring with a $4.7\,\mathrm{ns}$ revolution period using a $140\,\mathrm{ns}$ kicker pulse. A scintillating-fiber detector observes signals $>5σ$ above noise for $\geq 1\, \mathrm{μs}$, and varying the weak-focusing field potential shifts the stored-beam region, consistent with Monte Carlo predictions, validating beam storage. This proof-of-principle opens a path to ultra-compact storage rings for next-generation precision measurements. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_01504 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | First Experimental Demonstration of Beam Storage by Three-Dimensional Spiral Injection Scheme for Ultra-Compact Storage Rings Matsushita, R. Iinuma, H. Ohsawa, S. Nakayama, H. Furukawa, K. Ogawa, S. Saito, N. Mibe, T. Rehman, M. A. Accelerator Physics High Energy Physics - Experiment Three-dimensional spiral injection enables beam storage in ultra-compact rings with nanosecond revolution periods. We report first storage of a $297 \, \mathrm{keV/}c$ electron beam in a $22 \,\mathrm{cm}$ weak-focusing ring with a $4.7\,\mathrm{ns}$ revolution period using a $140\,\mathrm{ns}$ kicker pulse. A scintillating-fiber detector observes signals $>5σ$ above noise for $\geq 1\, \mathrm{μs}$, and varying the weak-focusing field potential shifts the stored-beam region, consistent with Monte Carlo predictions, validating beam storage. This proof-of-principle opens a path to ultra-compact storage rings for next-generation precision measurements. |
| title | First Experimental Demonstration of Beam Storage by Three-Dimensional Spiral Injection Scheme for Ultra-Compact Storage Rings |
| topic | Accelerator Physics High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2602.01504 |