Advanced Acceleration R&D

Trojan Horse, a hybrid laser-plasma accelerator

Hybrid laser-plasma accelerator schemes are emerging as tools capable of producing high-energy electron beams as drivers for advanced light sources. The Trojan Horse will achieve dramatic improvements in beam quality (emittance), control, and tunability with a modular beam brightness transformer stage in addition to laser-plasma accelerator sections. This modular approach incorporates a two-species gas mixture for independent control of beam generation and acceleration.

 

RadiaBeam Technologies is performing a proof-of-principle experiment in collaboration with SLAC National Accelerator Laboratory. Contact us for more information.

 

Ultra-high gradient, compact S-band accelerating structure for laboratory and industrial applications

There is a growing demand from the industrial and research communities for high gradient, compact RF accelerating structures.  The commonly used S-band SLAC-type structure has an operating gradient of only about 20 MV/m.  Much higher operating gradients (up to 70 MV/m) have been recently achieved in X-band, as a consequence of the substantial efforts by the Next Linear Collider (NLC) collaboration to push the performance envelope of RF structures towards higher accelerating gradients.  Currently, however, high power X-band RF sources are not readily available for industrial applications.

 

RadiaBeam Technologies is developing short, standing wave S-band structures that use frequency scaled NLC design concepts to achieve up to 50 MV/m operating gradient at 2856 MHz.  This high gradient S-band technology will offer an ultra-compact drop-in replacement for a conventional S-band Linac in research and industrial applications such as drivers for compact light sources and medical and security systems.  From an R&D perspective, this project will contribute to investigation of the frequency scaling of RF breakdown mechanisms and the corresponding design limitations of high gradient structures.

 

The Micro-Accelerator Platform: A New Particle Source for Industrial, Medical, and Research Applications

Sources of relativistic electrons, especially for use in generating X-rays, are utilized in applications ranging from cancer therapy to industrial inspection, but such devices are presently large and very expensive.  New applications, ranging from research in high-energy physics to medical uses in advanced imaging and radiosurgery, demand new types of radiation and charged particle sources.

 

RadiaBeam is developing a new kind of particle source —the Micro Accelerator Platform (MAP)— that is based on a microstructure fabricated from dielectric materials, much the way microelectronic chips and MEMS devices are produced.  This source will be powered by a laser, delivered over a fiber optic, and will be about a cubic millimeter in size.  This project is the continuation of more than a decade of research at UCLA into the physics of slab-symmetric dielectric structures.

 

The MAP holds great promise as a new form of cancer radiation therapy delivered through a minimally invasive procedure to the tumor site, thus avoiding damage to healthy tissue.  This new tool can potentially provide a safer, more effective, and less expensive alternative to the radiation treatment available today.  At the same time, the MAP technology will provide a new source for non-destructive testing and cargo inspection.  The demonstration of high-gradient acceleration in a laser-powered dielectric structure will also contribute significantly to the development of future advanced accelerators for high energy physics research.