论文标题
优化质子改进计划的LINAC（PIP-II）
Optimization of Superconducting Linac for Proton Improvement Plan-II (PIP-II)
论文作者
论文摘要
PIP-II是Fermilab综合体的必不可少的升级，它将为LBNF的国际深层中微子中微子实验提供世界上最激烈的中微子高能束，并支持Fermilab的广泛物理学计划。最终，PIP-II超导LINAC将能够将$ H $ CW梁加速至800 MeV，平均功率为1.6兆瓦。要以如此高的功率运行Linac，必须严格控制束损耗和束发射的生长。在本文中，我们介绍了LINAC选项对PIP-II LINAC超导段的强大和有效物理设计的全局优化的结果。我们还研究了偶极校正器的非线性场对光束质量的影响，并使用统计分析得出了对场质量的需求。最后，我们评估需要纠正半波产生的四极聚焦的需求，并纠正单个辐条加速腔。我们评估通过改变Linac聚焦电磁阀的极性来控制机器中光束耦合的可行性
PIP-II is an essential upgrade of the Fermilab complex that will enable the worlds most intense high-energy beam of neutrinos for the international Deep Underground Neutrino Experiment at LBNF and support a broad physics program at Fermilab. Ultimately, the PIP-II superconducting linac will be capable of accelerating the $H-$ CW beam to 800 MeV with an average power of 1.6 MW. To operate the linac with such high power, beam losses and beam emittance growth must be tightly controlled. In this paper, we present the results of global optimization of the Linac options towards a robust and efficient physics design for the superconducting section of the PIP-II linac. We also investigate the impact of the nonlinear field of the dipole correctors on the beam quality and derive the requirement on the field quality using statistical analysis. Finally, we assess the need to correct the quadrupole focusing produced by Half Wave, and Single Spoke accelerating cavities. We assess the feasibility of controlling the beam coupling in the machine by changing the polarity of the field of linac focusing solenoids
