Year: 1988
Type: conference-paper
Abstract: The Advanced Light Source, under construction at the Lawrence Berkeley Laboratory, will use a 50 MeV, 3 GHz linac as preinjector. The linac will operate in two modes---a single-bunch mode of 4 nC/pulse and a 100--150 nanosecond multibunch mode with 125 mA average current. In both modes an rms momentum spread of <0.3% is needed. The linac injection system consists of a high-intensity gun, followed by two subharmonic bunchers (one of 1/24th, and the other of 1/6th the linac frequency), an S-band buncher at the linac frequency and the first few cavities of the linac (the capture section). The beam experiences strong space-charge forces and nonlinearities which cause emittance growth. Expected performance is analyzed with computer simulations. 6 refs., 5 figs.
Authors: R.H. Miller, C.H. Kim, F. Selph
Language: English
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W73284510