CERN Accelerating science

Article
Report number	CLIC-Note-824
Title	The Baseline Positron Production and Capture Scheme for CLIC
Author(s)	Dadoun, Olivier (Orsay, LAL) ; Chaikovska, Iryna (Orsay, LAL) ; Lepercq, Pierre (Orsay, LAL) ; Poirier, Freddy (Orsay, LAL) ; Variola, Alessandro (Orsay, LAL) ; Chehab, Robert (Lyon, IPN) ; Rinolfi, Louis (CERN) ; Vivoli, Alessandro (CERN) ; Strakhovenko, Vladimir (Novosibirsk, IYF) ; Xu, Chengai (Beijing, Inst. High Energy Phys.)
Publication	2010
In:	1st International Particle Accelerator Conference, Kyoto, Japan, 23 - 28 May 2010, pp.WEOBMH03
Subject category	Accelerators and Storage Rings
Accelerator/Facility, Experiment	CLIC
Abstract	The CLIC study considers the hybrid source using channeling as the baseline for unpolarised positron production. The hybrid source uses a few GeV electron beam impinging on a tungsten crystal target. With the crystal oriented on its < 111 > axis it results an intense relatively low energy photon beam. The later is then impinging on an amorphous tungsten target producing positrons by e+e− pair creation. Downstream the amorphous target, a capture section based on an adiabatic matching device followed by a 2 GHz Pre- Injector Linac focuses and accelerates the positron beam up to around 200 MeV
Copyright/License	publication: (License: CC-BY)