The versatility of laser accelerators in generating particle beams various types is often promoted as a key applicative advantage. These multiple particles, however, are generated on vastly different irradiation setups, so that switching from one type to another involves substantial mechanical changes. In this letter, we report laser-based accelerator generates either multi-MeV electrons or ion...

The Stanford Linear Collider (SLC)1*2 accelerates ingle bunches of electrons and positrons to 47 GeV per beam and collides them with small beam sizes and at high currents. The beam emittances and intensities required for present operation have significantly extended traditional beam quality limits. The electron source produces over lo1 1 ein each of two bunches. The damping rings provide couple...

The BNL Laser-Electron Accelerator Facility (LEAF) uses a laser-pulsed photocathode, radio-frequency electron gun to generate ù7 ps pulses of 8.7 MeV electrons for pulse radiolysis experiments. The compact and operationally simple accelerator system includes synchronized laser pulses that can be used to probe or excite the electron-pulsed samples to examine the dynamics and reactivity of chemic...

Measurements of the electric and magnetic form factors of the nucleon present a sensitive test of nucleon models and QCD-inspired theories. A precise knowledge of the neutron form factors at low Q is also essential to reduce the systematic errors of parity violation experiments. At the MIT-Bates Linear Accelerator Center, the nucleon form factors have been measured by means of scattering of pol...

These notes represent an introduction to the physics of synchrotron radiation. Such radiation is produced by relativistic electron beams being de‡ected by magnetic ...eld. Speci...cally, relativistic electron beams are injected into circular accelerators, called storage rings, where they circulate for many hours while continuously producing synchrotron radiation for the bene...t of research in ...

The Cornell Electron Storage Ring is the laboratory for the CESR Test Accelerator damping ring R&D program, and the source of x-rays for the Cornell High Energy Synchrotron Source. A peculiarity of the layout of the storage ring is that horizontal emittance is generated predominantly by the strong bends in the sextant of the ring that was designed with a long straight to accommodate the interac...

The Cornell electron-positron storage ring (CESR) is a symmetric e+e− collider located on the Cornell University campus in Ithaca, NY. For almost 30 years, the accelerator has been running in the Upsilon energy region from √ s = 9-11 GeV , providing the accompanying detector, CLEO, with data to produce results on B, Υ, τ , charm, and 2-photon physics. Roughly 2 years ago, the accelerator was mo...

China has endeavored in the field of FEL research since the mid-eighties. Compton regime, Raman regime, Electromagnetic Pumping, Cherenkov FEL, and Harmonic Generator FEL, etc. based on the RF linac accelerator, induction linac accelerator, pulsed-line accelerator, and storage ring have all been developed. These experimental projects are in various stages of development and are discussed in seq...