Title :
Measurement of longitudinal emittance growth using a laser-induced neutralization method
Author :
Yuan, V.W. ; Garcia, R. ; Johnson, K.F. ; Saadatmand, K. ; Sander, O.R. ; Sandoval, D. ; Shinas, M.
Author_Institution :
Los Alamos Nat. Lab., NM, USA
Abstract :
A laser-induced neutralization technique called LINDA (Laser-Induced Neutral Diagnostic Approach) has been used to study the longitudinal emittance of the 5-MeV H/sup -/ beam exiting the drift-tube linac of the Los Alamos Accelerator Test Stand. By using multiple laser intersection points, longitudinal emittance growths over drift distances of 23.6 and 30.6 cm were measured. Subsequently, a beam transport line, which consisted of one arm of a beam funnel, was substituted for the drift space. Measurements show that the elements of the funnel constrain emittance growth while the H/sup -/ beam is contained within these transport elements.<>
Keywords :
ion accelerators; measurement by laser beam; particle beam diagnostics; H/sup -/; Laser-Induced Neutral Diagnostic Approach; beam funnel; beam transport line; drift-tube linac; laser-induced neutralization technique; longitudinal emittance; multiple laser intersection points; Detectors; Frequency; Laboratories; Laser beams; Optical pulses; Particle accelerators; Particle beam measurements; Particle beams; Pulse amplifiers; Signal detection;
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.1991.165020
