Title :
Simulation study on attosecond electro bunch generation
Author :
Kan, Koichi ; Kondoh, Takafumi ; Yang, Jinfeng ; Yoshida, Yoichi
Author_Institution :
Osaka Univ., Osaka
Abstract :
Pulse radiolysis, a stroboscopic method with an ultrashort electron bunch and an ultrashort light, is essential for the observation of ultrafast reactions. The time resolution of pulse radiolysis depends on the electron bunch length. In Osaka University, a 98-fs electron bunch was generated by using a photocathode electron linac for a development of femtosecond pulse radiolysis. Furthermore, a subfemtosecond/attosecond pulse radiolysis is proposed to study the ionization and thermalization processes in subfemtosecond/attosecond time region. In order to realize such a high time resolution, the possibility of attosecond electron bunch generation based on the photocathode RF gun linac and a magnetic bunch compressor was studied. In the simulation, the bunch length growths due to charge, transverse and longitudinal emittance were investigated.
Keywords :
accelerator RF systems; beam handling techniques; electron accelerators; electron guns; linear accelerators; particle beam bunching; particle beam dynamics; photocathodes; RF gun; ionization processes; longitudinal emittance; magnetic bunch compressor; photocathode electron linac; pulse radiolysis; stroboscopic method; thermalization processes; time 98 fs; transverse emittance; ultrashort electron bunch length; ultrashort light; Acceleration; Cathodes; Electron beams; Ionization; Linear particle accelerator; Magnetic field measurement; Magnetosphere; Magnets; Pulse generation; Radio frequency;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4440579
