First demonstration of the use of crab cavities on hadron beams,Physical Review Accelerators and Beams

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First demonstration of the use of crab cavities on hadron beams
Physical Review Accelerators and Beams ( IF 1.5 ) Pub Date : 2021-06-11 , DOI: 10.1103/physrevaccelbeams.24.062001
R. Calaga , A. Alekou , F. Antoniou , R. B. Appleby , L. Arnaudon , K. Artoos , G. Arduini , V. Baglin , S. Barriere , H. Bartosik , P. Baudrenghien , I. Ben-Zvi , T. Bohl , A. Boucherie , O. S. Brüning , K. Brodzinski , A. Butterworth , G. Burt , O. Capatina , S. Calvo , T. Capelli , M. Carlà , F. Carra , L. R. Carver , A. Castilla-Loeza , E. Daly , L. Dassa , J. Delayen , S. U. De Silva , A. Dexter , M. Garlasche , F. Gerigk , L. Giordanino , D. Glenat , M. Guinchard , A. Harrison , E. Jensen , C. Julie , T. Jones , F. Killing , A. Krawczyk , T. Levens , R. Leuxe , B. Lindstrom , Z. Li , A. MacEwen , A. Macpherson , P. Menendez , T. Mikkola , P. Minginette , J. Mitchell , E. Montesinos , G. Papotti , H. Park , C. Pasquino , S. Pattalwar , E. C. Pleite , T. Powers , B. Prochal , A. Ratti , L. Rossi , V. Rude , M. Therasse , R. Tomás , N. Stapley , I. Santillana , N. Shipman , J. Simonin , M. Sosin , J. Swieszek , N. Templeton , G. Vandoni , S. Verdú-Andrés , M. Wartak , C. Welsch , D. Wollman , Q. Wu , B. Xiao , E. Yamakawa , C. Zanoni , F. Zimmermann , A. Zwozniak

Many future particle colliders require beam crabbing to recover geometric luminosity loss from the nonzero crossing angle at the interaction point (IP). A first demonstration experiment of crabbing with hadron beams was successfully carried out with high energy protons. This breakthrough result is fundamental to achieve the physics goals of the high luminosity LHC (HL-LHC) and the future circular collider (FCC). The expected peak luminosity gain (related to collision rate) is 65% for HL-LHC and even greater for the FCC. Novel beam physics experiments with proton beams in CERN’s Super Proton Synchrotron (SPS) were performed to demonstrate several critical aspects for the operation of crab cavities in the future HL-LHC including transparency with a pair of cavities, a full characterization of the cavity impedance with high beam currents, controlled emittance growth from crab cavity induced rf noise.

中文翻译：

首次演示在强子束上使用蟹形腔

许多未来的粒子对撞机需要光束漂移以从相互作用点 (IP) 的非零交叉角恢复几何光度损失。用高能质子成功地进行了强子束捕蟹的第一次示范实验。这一突破性成果对于实现高亮度 LHC (HL-LHC) 和未来圆形对撞机 (FCC) 的物理目标至关重要。HL-LHC 的预期峰值光度增益（与碰撞率相关）为 65%，而 FCC 的峰值亮度增益甚至更高。在欧洲核子研究中心的超级质子同步加速器 (SPS) 中使用质子束进行了新的束物理实验，以展示未来 HL-LHC 中蟹形腔运行的几个关键方面，包括一对腔的透明度，腔阻抗的完整表征高束流，

更新日期：2021-06-13

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