CERN Accelerating science

Article
Report number	CERN-PS-2001-033-PP ; CLIC-Note-487
Title	The photo-injector option for CLIC : past experiments and future developments
Author(s)	Braun, Hans Heinrich (CERN) ; Chevallay, E ; Hutchins, S ; Legros, P ; Suberlucq, Guy ; Trautner, H ; Ross, I N ; Bente, E
Publication	2001
Imprint	16 Jul 2001
Number of pages	4
Note	Revised version number 1 submitted on 2001-07-19 10:14:24
In:	19th IEEE Particle Accelerator Conference, Chicago, IL, USA, 18 - 22 Jun 2001, pp.e-proc. 720
Subject category	Accelerators and Storage Rings
Accelerator/Facility, Experiment	CLIC ; CTF3
Abstract	The Compact Linear Collider (CLIC) drive beam requires a long bunch train (92 us) consisting of 42880 bunches with a bunch charge of 17.5 nC in a bunch length of less than 20 ps. This train might be produced by an RF-photo-injector equipped with a Cs-Te cathode. After a short review of experience with such cathodes in the present CLIC Test Facility (CTF2), mainly focused on the production of short trains of high-charge bunches, we will present the scheme foreseen for CLIC and CTF3. The laser will be a diode-pumped MOPA (Master Oscillator Power Amplifier), operating at a repetition rate of 469 MHz for CLIC and 1.5 GHz for CTF3. The specific requirements of an RF-gun for this high-current operation are discussed. New experimental results on the photocathode lifetime at high average current are summarized.

Corresponding record in: Inspire
Email contact: [email protected]