Pulse Compression via Velocity Bunching with the Llnl Thomson X-ray Source Photoinjector
نویسندگان
چکیده
We report the compression of a high brightness, relativistic electron beam to rms lengths below 300 femtoseconds using the velocity compression technique in the LLNL Thomson X-ray source photoinjector. The results are consistent with analytical and computational models of this process. The emittance evolution of the beam during compression is investigated in simulation and found to be controllable with solenoid focusing.
منابع مشابه
Subpicosecond compression by velocity bunching in a photoinjector
033503-1 We present an experimental evidence of a bunch compression scheme that uses a traveling wave accelerating structure as a compressor. The bunch length issued from a laser-driven radio-frequency electron source was compressed by a factor > 3 using an S-band traveling wave structure located immediately downstream from the electron source. Experimental data are found to be in good agreemen...
متن کاملBeam Dynamics in a Hybrid Standing Wave- Traveling Wave Photoinjector
We discuss the dynamics of of a photoinjector beam in a hybrid traveling wavestanding wave photoinjector. With the field profile deduced from electromagnetic simulations, it is seen that the acceleration program induces strong velocity bunching. The beam dynamics in this scenario are explored using UCLA PARMELA. With a solenoid field overlaid on the TW section one may control emittance oscillat...
متن کاملVelocity Bunching Experiment at the Neptune Laboratory
In this paper we describe the ballistic bunching compression experiment at the Neptune photoinjector at UCLA. We have compressed the beam by chirping the beam energy spectrum in a short S-band high gradient standing wave RF cavity and then letting the electrons undergo velocity compression in the subsequent rectilinear drift. Using a standard Martin Puplett interferometer for coherent transitio...
متن کاملGeneration of High Brightness X-rays with the Pleiades Thomson X-ray Source
The use of short laser pulses to generate high peak intensity, ultra-short x-ray pulses enables exciting new experimental capabilities, such as femtosecond pumpprobe experiments used to temporally resolve material structural dynamics on atomic time scales. PLEIADES (Picosecond Laser Electron InterAction for the Dynamic Evaluation of Structures) is a next generation Thomson scattering x-ray sour...
متن کاملPulse Compression of Nd:YAG Laser with Stimulated Brillouin Scattering for Compton Backscattered X-Ray Source
Abstract. Compton backscattered x-ray source is developed in the energy region of a few hundred keV at Kansai Photon Science Institute of Japan Atomic Energy Agency (KPSI-JAEA). A remarkable feature of the Compton backscattered x-ray source is that the generated x-ray beam is a well-collimated and has a definite polarization property. The Compton backscattered x-ray source at KPSI-JAEA consists...
متن کامل