Title :
Characterization of a ramped gradient DTL: experiment and theory
Author :
Johnson, K.F. ; Wadlinger, E.A. ; Sander, O.R. ; Boicourt, G.P. ; Bolme, G.O. ; Fortgang, C.M. ; Gilpatrick, J.D. ; Merson, J. ; Sandoval, D.P. ; Yuan, V.
Author_Institution :
Los Alamos Nat. Lab., NM, USA
Abstract :
An experimental demonstration confirming the beam dynamics of a ramped-gradient drift-tube linac (RGDTL) was performed at Los Alamos National Laboratory. The RGDTL was designed to meet the requirements of maximum beam acceleration, minimum longitudinal and transverse emittance growth, and acceptable wall power loss. At low beam energies, transverse-magnet focusing is weak and the RF defocusing must be minimized. As the beam energy increases, stronger RF defocusing can be tolerated and the RF electric field gradient can increase. A detailed comparison of theory and experiment was carried out. Experimental data and theory were in good agreement.<>
Keywords :
linear accelerators; proton accelerators; RF defocusing; beam acceleration; linear accelerators; ramped-gradient drift-tube linac; transverse emittance growth; transverse-magnet focusing; wall power loss; Acceleration; Current measurement; Design optimization; Energy measurement; Laboratories; Linear particle accelerator; Particle beams; Phase measurement; Protons; Radio frequency;
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
DOI :
10.1109/PAC.1991.165172
