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Updated: Jan 9, 2026

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在大型强子碰撞机的TWOCRYST实验中使用短和长曲结晶的性能

L Bandiera¹, R Cai², S Carsi^3,4

¹INFN, Sezione di Ferrara, Ferrara, Italy.

The European physical journal. C, Particles and fields

|December 5, 2025

概括

曲晶体在大型强子对撞机 (LHC) 中测试道化子. 这些晶体能够为粒子物理学实验提供精确的偏移,新的曲技术对未来的应用有希望.

科学领域:

高能物理学的高能物理学
材料科学是一种材料科学.
粒子加速器技术的技术

背景情况:

曲晶体为道哈德龙提供高有效的曲场,使短距离可以产生大的偏移.
这种现象对于需要精确粒子操纵的实验至关重要,比如测量短命迷恋 baryons 的特性.
传统的磁铁不足以满足某些大型强子对撞机 (LHC) 实验所需的大偏斜角度.

研究的目的:

为了研究曲晶体在LHC对子导通的性能.
为了评估使用不同的曲技术制造的晶体,包括阳极粘合,用于加速器应用.
评估使用曲晶体来测量魔术巴里昂的电磁双极时刻的可行性.

主要方法:

在CERN超级质子同步子 (SPS) 中使用高动量子束进行了束测试.
晶体被制造和测试使用X射线衍射和180GeV/c子束.
性能分析包括评估道接受和效率作为粒子动量的函数.

主要成果:

测试了基于既有技术的两个晶体,以及通过阳极结合曲的新晶体.
阳极结合技术首次用高能哈德龙进行了评估.
分析的重点是归因于各种晶体曲技术的性能差异.

结论:

曲晶体可用于LHC固定目标实验中的哈德龙通道.
测试的晶体,特别是阳极结合的晶体,显示出未来加速器应用的潜力.
进一步开发晶体制造技术对于优化道性能至关重要.

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相关概念视频

X-ray Crystallography

X-ray Crystallography

The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...