Micro-bunch production with radio frequency photoinjectors

Journal Article · Mon Apr 01 04:00:00 EST 1996 · IEEE Transactions on Plasma Science

DOI:https://doi.org/10.1109/27.510006· OSTI ID:264378

Serafini, L ^[1]

---

1. INFN-Milan (Italy)

In this paper the authors discuss the generation of ultra-short electron bunches using laser-driven RF guns. The designs are tailored for future plasma accelerators. Second generation plasma accelerators are expected to be very demanding in terms of bunch length, since the accelerated beam is expected to be short with respect to the wavelength of the excited Langmuir space-charge plasma wave. Since the anticipated wavelength ranges from 100 to 300 {micro}m, 10--50 {micro}m-long bunches are required with a bunch population of the order of 10{sup 8} particles. The laser-driven RF gun is a promising candidate to attain such beams. The rationale for this choice as well as the main limitations in terms of minimum bunch length will be analyzed and discussed in the following. Two possible configurations are evaluated: the direct production at the photocathode surface of ultra-short electron bunches by illumination of the cathode with 160-fs-long laser pulses and the acceleration of a 1-ps electron bunch with further magnetic compression in a wiggler.

• OSTI ID: 264378
• Journal Information: IEEE Transactions on Plasma Science, Journal Name: IEEE Transactions on Plasma Science Journal Issue: 2 Vol. 24; ISSN ITPSBD; ISSN 0093-3813
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
BEAM BUNCHING
BEAM DYNAMICS
DESIGN
ELECTRON BEAMS
ELECTRON GUNS
WIGGLER MAGNETS