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arXiv physics/0008152physics.acc-ph
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用于μ子和中微子工厂合作研究的RF腔

RF Cavities For The Muon and Neutrino Factory Collaboration Study

A. Moretti, N. Holtkamp, T. Jurgens, Z. Qian, V. Wu

摘要:

一个多实验室合作正在研究建造μ子对撞机的可行性,其第一阶段可能是中微子工厂。μ子所占据的相空间非常大,需要冷却几个数量级,对撞机需要10万到100万,工厂需要10到100。电离冷却是μ子冷却的基本方法。该方案在一长串的磁聚焦通道中使用氢吸收剂和射频再加速来冷却μ子。费米实验室正在研究两种射频腔类型,以提供所需的冷却射频再加速,一种是用于对撞机的805 MHz高梯度腔,另一种是用于中微子工厂的201 MHz高梯度腔。目前正在进行冷态测试的805 MHz谐振腔是一种非周期性π模谐振腔,其虹膜开口的形状符合光束的轮廓。201 MHz谐振腔在射束孔径上使用中空薄金属管,以药丸盒型模式终止场,以增加其分流阻抗。这是可能的,因为μ子与薄金属膜几乎没有相互作用。这些空腔的细节和冷测量数据将被呈现。

英文摘要:

A multi-laboratory collaboration is studying the feasibility of building a muon collider, the first phase of which maybe a neutrino factory. The phase space occupied by the muons is very large and needs to be cooled several orders of magnitude for either machine, 100,000 to 1 million for the collider and ten to 100 for the factory. Ionization cooling is the base line method for muon cooling. This scheme uses hydrogen absorbers and rf re-acceleration in a long series of magnetic focusing channels to cool the muons. At Fermilab two rf cavity types are under study to provide the required cooling rf re-acceleration, a 805 MHz high gradient cavity for the collider and a 201 MHz high gradient cavity for the neutrino factory. The 805 MHz cavity currently under going cold testing is a non-periodic pi-mode cavity with the iris openings shaped to follow the contour of the beam. The 201 MHz cavity uses hollow thin metal tubes over the beam aperture to terminate the field in a pill-box type mode to increase its shunt impedance. This is possible because muons have little interactions with thin metal membranes. Details of these cavities and cold measurement data will be presented.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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