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近日，美国劳伦斯伯克利国家实验室资深研究员王新年和华中师范大学教授庞龙刚团队通过理论数值模型研究证实，高能重离子碰撞中的大动量喷注可在亚原子液滴中激发出超音速马赫波，并发现在末态粒子的关联中具有独特三维结构，这为实验观测指出了一条新途径。2月2日，该成果在《物理评论快报》发表。
国产大功率速调管推广应用取得重大突破（图）
速调管 大功率 国产 电子直线加速器
2023/1/5
2022年12月27日，由中国科学院高能物理研究所和湖北汉光科技公司共同研制的2998MHz速调管批量中标武汉大学先进光源项目1.0 GeV电子直线加速器采购项目，标志着国产大功率速调管将批量应用于大型科研装置上，推广应用取得重大突破，为推动国产大功率速调管做大做强具有重要意义。
15 MV医用直线加速器X射线束的MCNP模拟
医用电子加速器 X射线束 百分深度剂量 蒙特卡罗
2022/1/6
高能医用直线加速器在放射治疗中的应用越来越广泛，其辐射源项及屏蔽防护研究一直是人们关注的重点。应用MCNP（MonteCarloN-ParticleTransportCode）软件对Clinac23EX型医用直线加速器产生的15MVX射线束进行模拟。依据厂家提供的机头内部件的材料组成和几何尺寸，构建X射线模式的加速器机头精细模型，计算了不同照射野下X射线束在水模体中的百分深度剂量（Percenta...
2017年8月28日，位于广东东莞的国家大科学工程——中国散裂中子源（CSNS）首次打靶成功，获得中子束流。这是工程建设的重大里程碑，提前实现了今年秋天首次获得中子束流的目标，向党的十九大献礼。这标志着CSNS主体工程顺利完工，进入试运行阶段。预计2018年春CSNS将按计划全部完工，正式对国内外用户开放。
In the late 1980’s Hitchin [51] and Simpson [71] discovered deep connections
between representations of fundamental groups of surfaces and algebraic geometry.
The structure of the population inside the propagating front
Branch diffusion process of single particle particle
2015/9/25
We investigate the long-time and long-range behavior of branching diffusion processes (starting with a single particle) in two different situations: when the
branching potential has compact support a...
Stimulated coherent spontaneous emission in an FEL with 'quiet' bunches
shot noise reduction controlled microbunching instability laser heater
2012/5/11
For a planar FEL configuration we study stimulated coherent spontaneous emission driven by a gradient of the bunch current in the presence of different levels of noise in bunches. To perform a vast am...
Harmonic lasing in a free electron laser with a planar undulator (under the condition that the fundamental frequency is suppressed) might be a cheap and efficient way of extension of wavelength ranges...
Canonical (and non-canonical) Transformations: A Differential Approach
Canonical (and non-canonical) Transformations Differential Approach Accelerator Physics
2012/5/10
The traditional method of teaching canonical transformations involves the introduction of generating functions of various types. This method obscures the underlying structure of the Hamiltonian least-...
Hydrostatic Level Sensors as High Precision Ground Motion Instrumentation for Tevatron and Other Energy Frontier Accelerators
Accelerator applications Accelerator modeling and simulations Instrumentation for particle accelerators and storage rings
2012/5/8
Particle accelerators pushed the limits of our knowledge in search of the answers to most fundamental questions about micro-world and our Universe. In these pursuits, accelerators progressed to higher...
Stability of non-linear integrable accelerator
Stability of non-linear integrable accelerator Accelerator Physics
2012/5/7
The stability of non-linear Integrable Optics Test Accelerator (IOTA) model was tested. The area of the stable region in transverse coordinates and the maximum attainable tune spread were found as a f...
Project X with Rapid Cycling and Dual Storage Superconducting Synchrotrons
Project X Rapid Cycling Dual Storage Superconducting Synchrotrons Accelerator Physics
2012/5/7
Investigation of neutrino oscillations and rare meson decays are main physics goals of Project X. The successful physics outcome relies on the feasibility of high-intensity neutrino and meson (K+ and ...
Single-shot electro-optic sampling of coherent transition radiation at the A0 Photoinjector
Single-shot electro-optic sampling coherent transition radiation the A0 Photoinjector Accelerator Physics
2012/5/3
Future collider applications and present high-gradient laser plasma wakefield accelerators operating with picosecond bunch durations place a higher demand on the time resolution of bunch distribution ...
For almost a quarter of a century, the Tevatron proton-antiproton collider was the centerpiece of the world's high energy physics program - beginning operation in December of 1985 until it was overtak...