Witness Bunch Acceleration in a Multi-bunch Pwfa∗
نویسندگان
چکیده
We present initial experimental results showing the excitation of plasma wakefields by a train of two drive bunches. These wakefields are experienced by a trailing witness bunch that gains energy while retaining a finite energy spread. These well controlled plasma wakefield accelerator (PWFA) experiments are important to test the theory of the PWFA and serve as a testbed for techniques that will be used in high energy experiments.
منابع مشابه
Conceptual Design of the Drive Beam for a Pwfa-lc*
Plasma Wake-Field Acceleration (PWFA) has demonstrated acceleration gradients above 50 GeV/m. Simulations have shown drive/witness bunch configurations that yield small energy spreads in the accelerated witness bunch and high energy transfer efficiency from the drive bunch to the witness bunch, ranging from 30% for a Gaussian drive bunch to 95% for bunch with triangular shaped longitudinal prof...
متن کاملPhysics of the Awake Project
We briefly describe the physics goals of the AWAKE experiment proposed at CERN. AWAKE is a plasma wakefield acceleration (PWFA) experiment using the SPS proton bunch as a PWFA driver. These goals include the study of the self-modulation instability of the proton bunch propagating along the plasma, the sampling of the accelerating wakefields by witness electrons, the acceleration of an electron ...
متن کاملOne Gev Beam Acceleration in a One Meter Long Plasma Cell
A plasma-based wakefield acceleration (PWFA) experiment is proposed that will accelerate parts of an SLC bunch by up to 1 GeV/m over a length of 1 m. A single SLC bunch is used to both induce wakefields in the one meter long plasma and to witness the resulting beam acceleration. The proposed experiment will explore and further develop the techniques that are needed to apply high-gradient plasma...
متن کاملGeneration of Electron Microbunches Trains with Adjustable Sub- Picosecond Spacing for Pwfa and Fel Applications
We use a wire mesh mask placed in a dispersive region of the Accelerator Test Facility (ATF) at Brookhaven National Laboratory to produce a train of equidistant drive microbunches followed by witness bunch. This type of electron microbunch structure is appropriate for plasma wakefield accelerator experiments. These experiments aim at demonstrating the enhancement of the accelerating field when ...
متن کاملA Proposal for a 1 GeV Plasma-Wakefield Acceleration Experiment at SLAC*
A plasma-based wakefield acceleration (PWFA) experiment is proposed that will accelerate parts of an SLC bunch by up to 1 GeV/m over a length of 1 m. A single SLC bunch is used to both induce wakefields in the one meter long plasma and to witness the resulting beam acceleration. The proposed experiment will -explore and further develop the techniques that are needed to apply high-gradient plasm...
متن کامل