Fermilab Proton Accelerator Complex Status and Improvement Plans
Fermilab Proton Accelerator Complex Status and Improvement Plans
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费米实验室质子加速器综合体现状和改进计划
DOI：
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发表时间：
2017
期刊：
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通讯作者：
V. Shiltsev
中科院分区：
文献类型：
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作者：
V. Shiltsev
费米实验室在强度前沿开展了一项基于加速器的高能粒子物理研究的广泛计划，该计划依赖于 8 GeV 和 120 GeV 质子束线的运行来进行许多固定目标实验。由于质子改进计划 (PIP) 升级，2017 年中微子目标实现了平均 120 GeV 束流功率 700 kW 的世界纪录日常运行。计划进一步将功率从 900 kW 提高到 1000 kW。 FNAL 加速器综合体的下一个重大升级，称为 PIP-II，正在开发中。它的目标是在下一个十年中期 LBNF/DUNE 实验开始时实现 1.2 MW 束流功率，并假设用现代 800 MeV 超导射频直线加速器取代现有 40 年历史的 400 MeV 常导直线加速器。在更换现有的 8 GeV 助推同步加速器后，有几个概念可将光束功率进一步加倍至 > 2.4 MW。在这篇评论中，我们讨论了费米实验室质子加速器综合体的当前性能、未来二十年的升级计划以及加速器研发计划，以解决这些升级的成本和性能风险。
Fermilab carries out an extensive program of accelerator-based high energy particle physics research at the Intensity Frontier that relies on the operation of 8 GeV and 120 GeV proton beamlines for a number of fixed target experiments. Routine operation with a world-record 700 kW of average 120 GeV beam power on the neutrino target was achieved in 2017 as a result of the Proton Improvement Plan (PIP) upgrade. There are plans to further increase the power from 900–1000 kW. The next major upgrade of the FNAL accelerator complex, called PIP-II, is under development. It aims at 1.2 MW beam power on target at the start of the LBNF/DUNE experiment in the middle of the next decade and assumes replacement of the existing 40 years old 400 MeV normal-conducting Linac with a modern 800 MeV superconducting RF linear accelerator. There are several concepts to further double the beam power to > 2.4 MW after replacement of the existing 8 GeV Booster synchrotron. In this review, we discuss current performance of the Fermilab proton accelerator complex, the upgrade plans for the next two decades and the accelerator R&D program to address cost and performance risks for these upgrades.