dorsal/arxiv
View SchemaNiobium Quarter-Wave Resonator Development for The Rare Isotope Accelerator
| Authors | W. Hartung, J. Bierwagen, S. Bricker, J. Colthorp, C. Compton, T. Grimm, S. Hitchcock, F. Marti, L. Saxton, R. C. York, A. Facco, V. Zviagintsev |
|---|---|
| Categories | |
| ArXiv ID | physics/0412031 |
| URL | https://arxiv.org/abs/physics/0412031 |
Abstract
Two superconducting quarter-wave resonator (QWR) prototypes have been fabricated and tested. They operate at 80.5 MHz and 161 MHz and are optimised for beta = 0.085 and beta = 0.16, respectively. The prototypes are simplified versions without integrated helium vessels. In the first RF tests, the beta = 0.085 QWR reached a peak surface electric field (Ep) in excess of 30 MV/m, with an intrinsic quality factor (Q0) in excess of 1E9 at the design field of Ep = 20 MV/m. The beta = 0.16 QWR reached Ep = 20 MV/m with Q0 = 2.5E9. It is suspected that the performance of the latter cavity can be improved via better cooling of the Nb tuning plate and a better RF contact between the plate and the outer conductor.
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"date_created": "2026-03-02T18:00:53.503000Z",
"date_modified": "2026-03-02T18:00:53.503000Z",
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"abstract": "Two superconducting quarter-wave resonator (QWR) prototypes have been\nfabricated and tested. They operate at 80.5 MHz and 161 MHz and are optimised\nfor beta = 0.085 and beta = 0.16, respectively. The prototypes are simplified\nversions without integrated helium vessels. In the first RF tests, the beta =\n0.085 QWR reached a peak surface electric field (Ep) in excess of 30 MV/m, with\nan intrinsic quality factor (Q0) in excess of 1E9 at the design field of Ep =\n20 MV/m. The beta = 0.16 QWR reached Ep = 20 MV/m with Q0 = 2.5E9. It is\nsuspected that the performance of the latter cavity can be improved via better\ncooling of the Nb tuning plate and a better RF contact between the plate and\nthe outer conductor.",
"arxiv_id": "physics/0412031",
"authors": [
"W. Hartung",
"J. Bierwagen",
"S. Bricker",
"J. Colthorp",
"C. Compton",
"T. Grimm",
"S. Hitchcock",
"F. Marti",
"L. Saxton",
"R. C. York",
"A. Facco",
"V. Zviagintsev"
],
"categories": [
"physics.acc-ph"
],
"title": "Niobium Quarter-Wave Resonator Development for The Rare Isotope Accelerator",
"url": "https://arxiv.org/abs/physics/0412031"
},
"schema_id": "dorsal/arxiv",
"source": {
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"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
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