Title :
Simulations of the LEDA RFQ 6.7-MeV accelerator
Author_Institution :
Los Alamos Nat. Lab., NM, USA
Abstract :
The codes PARMTEQM and RFQTRAK simulate the beam transport through the radio-frequency-quadrupole (RFQ) accelerator for the low-energy-demonstration accelerator (LEDA). They predict 95% transmission for a matched 110-mA proton beam with a normalized-RMS emittance of 0.02 mm mrad. RFQTRAK simulates the effects of arbitrary vane-tip misalignments. This RFQ includes some new features in its design. It consists of four resonantly coupled 2-m-long segments that make up its 8-m length. It has higher vane-gap voltages at the high-energy end than the low-energy end. The entrance end of the RFQ has lower transverse focusing strength to facilitate beam matching. The exit of the RFQ has a transition cell and a radial-matching section. The exit radial-matching section matches the beam into the following accelerator
Keywords :
accelerator RF systems; beam handling equipment; high energy physics instrumentation computing; linear accelerators; particle beam focusing; proton accelerators; proton beams; 110 mA; 2 m; 6.7 MeV; 8 m; LEDA RFQ accelerator; PARMTEQM code; RFQTRAK code; beam transport; low-energy-demonstration accelerator; matched proton beam; radial-matching section; radiofrequency-quadrupole accelerator; resonantly coupled segments; simulations; transition cell; transverse focusing strength; vane-tip misalignments; Acceleration; Apertures; Blades; Finite element methods; Laboratories; Particle beams; Proton accelerators; Radio frequency; Resonance; Voltage;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.752754
