DAFNE-2的能量斜升

DAFNE-Linac能量倍增的可行性

Feasibility of the DAFNE-Linac energy doubling

弗拉斯卡蒂DAFNE Phi工厂的能量倍增可以通过将环的能量从最初的510 MeV注入束或通过将现有的直线加速器能量升级到> 1.02 GeV来实现，以便以全能量注入束。这两个选项之间的选择不是本文的目标，相反，提出了一些技术解决方案，允许重复使用DAFNE正负电子直线加速器的所有组件。

Beam Dynamics Studies at DAFNE: from Ideas to Experimental Results

DAFNE is the electron-positron collider operating at the energy of Phi-resonance, 1 GeV in the center of mass. The presently achieved luminosity is by about two orders of magnitude higher than that obtained at other colliders ever operated at this energy. Careful beam dynamic studies such as the vacuum chamber design with low beam coupling impedance, suppression of different kinds of beam instabilities, investigation of beam-beam interaction, optimization of the beam nonlinear motion have been the key ingredients that have helped to reach this impressive result. Many novel ideas in accelerator…

Design considerations for future DAFNE upgrade

The Frascati F-Factory DAFNE has been delivering luminosity to the KLOE, DEAR and FINUDA experiments since year 2000. Since April 2004 the KLOE run has been resumed and recently peak luminosity of 1.0x1032 cm-2s-1 and integrated luminosity of 6.2 pb-1/day have been achieved. The scientific program of the three high-energy experiments sharing DAFNE operation will be completed approximately by the end of year 2006. A scientific program for DAFNE beyond that date has not been defined yet and it is matter of discussion in the high-energy physics and accelerator physics communities. In this paper w…

DAFNE喷射系统升级

DAFNE injection system upgrade

DAFNE的高亮度需要存储非常高的电子和正电子流。目前使用的是由一个全能量电子和正电子直线加速器和一个积累器阻尼环组成的全能量（510 MeV）注入系统。电子和正电子束，交替加速的直线加速器，注入和堆积在蓄电池的高效率，由于其大的接受和短的阻尼时间。阻尼梁被提取出来，并通过一条长的传输线传输到主环，该传输线已建在现有建筑物内。碰撞器的再填充时间受到两种不同光束模式之间的传输线设置变化的限制。本文提出了一种改进的传输线，以减少开关时间。还描述了主环的一种可能的注入方案。

POSEYDON - Converting the DAFNE Collider into a double Positron Facility: a High Duty-Cycle pulse stretcher and a storage ring

This project proposes to reuse the DAFNE accelerator complex for producing a high intensity (up to 10^10), high-quality beam of high-energy (up to 500 MeV) positrons for HEP experiments, mainly - but not only - motivated by light dark particles searches. Such a facility would provide a unique source of ultra-relativistic, narrow-band and low-emittance positrons, with a high duty factor, without employing a cold technology, that would be an ideal facility for exploring the existence of light dark matter particles, produced in positron-on-target annihilations into a photon+missing mass, and usin…

欠约束格构设计中的束流光学渐变：在电子-离子对撞机强子储存环冷却段的应用

Beam Optics Ramping in Under-Constrained Lattice Design: Application to Electron-Ion Collider Hadron Storage Ring Cooling Section

本文针对电子-离子对撞机强子储存环冷却段中可调旋钮多于束流光学约束导致的注入与顶能光学解不连通问题，提出了中点惩罚方案和自上而下自适应加权方法，确保渐变路径连续并满足所有约束，为欠约束系统提供了通用渐变策略。