Design Study for a Staged Very Large Hadron Collider
Design Study for a Staged Very Large Hadron Collider
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DOI：
10.2172/781994
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发表时间：
2001-06
期刊：
影响因子：
--
通讯作者：
A. Chao
中科院分区：
文献类型：
--
作者：
A. Chao
先进的加速器设计和技术以实现最高能量，使粒子物理学有了非凡的发现。这份报告介绍了费米实验室一台新对撞机的设计研究结果，该对撞机将为粒子物理创造特殊的机会--一台两级超大型强子对撞机。在第一阶段，这台机器以负担得起的成本和合理的时间范围为能量前沿粒子物理研究提供了设施。在同一隧道的第二阶段升级中，VLHC提供了达到Tevatron碰撞能量100倍的可能性。现有的费米实验室加速器综合体用作注入器，碰撞大厅位于费米实验室现场。第一阶段的VLHC达到了40TeV的碰撞能量和与LHC相当的光度，使用了安装在大圆周隧道中的坚固而简洁的超铁磁体。第二阶段VLHC是在第一阶段的科学潜力完全实现后建造的，通过在同一隧道中安装高场磁铁，碰撞能量至少达到175TeV。它最大限度地利用了为第一阶段机器开发的基础设施，使用第一阶段加速器本身作为注射器。这项由费米实验室主任于2000年11月委托进行的研究的目标是：为同一隧道中的第一阶段和第二阶段甚大型HC设计合理的设计；发现在费米实验室建造这类设施的技术挑战和潜在障碍；确定第一阶段甚低碳氢化合物主要部件的大约成本；以及确定需要进行大量研发的领域，以便为设计奠定基础。
Advancing accelerator designs and technology to achieve the highest energies has enabled remarkable discoveries in particle physics. This report presents the results of a design study for a new collider at Fermilab that will create exceptional opportunities for particle physics--a two-stage very large hadron collider. In its first stage, the machine provides a facility for energy-frontier particle physics research, at an affordable cost and on a reasonable time scale. In a second-stage upgrade in the same tunnel, the VLHC offers the possibility of reaching 100 times the collision energy of the Tevatron. The existing Fermilab accelerator complex serves as the injector, and the collision halls are on the Fermilab site. The Stage-1 VLHC reaches a collision energy of 40 TeV and a luminosity comparable to that of the LHC, using robust superferric magnets of elegant simplicity housed in a large-circumference tunnel. The Stage-2 VLHC, constructed after the scientific potential of the first stage has been fully realized, reaches a collision energy of at least 175 TeV with the installation of high-field magnets in the same tunnel. It makes optimal use of the infrastructure developed for the Stage-1 machine, using the Stage-1 accelerator itself as the injector. The goals of this study, commissioned by the Fermilab Director in November 2000, are: to create reasonable designs for the Stage-1 and Stage-2 VLHC in the same tunnel; to discover the technical challenges and potential impediments to building such a facility at Fermilab; to determine the approximate costs of the major elements of the Stage-1 VLHC; and to identify areas requiring significant R and D to establish the basis for the design.