dorsal/arxiv
View SchemaNew 357 MHz Sub Harmonic Buncher
| Authors | Masao Kuriki, Hitoshi Hayano, Katsushi Hasegawa |
|---|---|
| Categories | |
| ArXiv ID | physics/0106082 |
| URL | https://arxiv.org/abs/physics/0106082 |
Abstract
KEK-ATF is doing R&D establishing high-current and low-emittance electron beam for the future linear colliders. In ATF, 15 ps length electron beam is generated by combination of a thermionic gun, a couple of 357 MHz SHBs, and a S-band TW buncher. In the linac, beam instability caused by the fluctuated amplitude and phase of SHBs has been observed. The reason of the fluctuation is considered to be the multi-pacting in the SHB cavity. In addition, Q value of the cavity is almost half of the designed value, then SHBs are not operated in an optimum condition. We have fabricated new SHBs with considerations avoiding the multi-pacting and recovering Q value. A simulation shows that bunching quality is improved with the new SHB cavity.
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"date_created": "2026-03-02T18:00:35.998000Z",
"date_modified": "2026-03-02T18:00:35.998000Z",
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"abstract": "KEK-ATF is doing R\u0026D establishing high-current and low-emittance electron\nbeam for the future linear colliders. In ATF, 15 ps length electron beam is\ngenerated by combination of a thermionic gun, a couple of 357 MHz SHBs, and a\nS-band TW buncher. In the linac, beam instability caused by the fluctuated\namplitude and phase of SHBs has been observed. The reason of the fluctuation is\nconsidered to be the multi-pacting in the SHB cavity. In addition, Q value of\nthe cavity is almost half of the designed value, then SHBs are not operated in\nan optimum condition. We have fabricated new SHBs with considerations avoiding\nthe multi-pacting and recovering Q value. A simulation shows that bunching\nquality is improved with the new SHB cavity.",
"arxiv_id": "physics/0106082",
"authors": [
"Masao Kuriki",
"Hitoshi Hayano",
"Katsushi Hasegawa"
],
"categories": [
"physics.acc-ph"
],
"title": "New 357 MHz Sub Harmonic Buncher",
"url": "https://arxiv.org/abs/physics/0106082"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "f0941550-73d8-4dca-a5c5-9dbba5764706",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
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