Title :
Automatic emittance measurement at the ATF
Author :
Wang, X.J. ; Malone, R. ; Batchelor, K. ; Ben-Zvi, I.
Author_Institution :
Brookhaven Nat. Lab., Upton, NY, USA
Abstract :
An automatic emittance measurement system to characterize the transverse emittance of the electron beam produced by the BNL photocathode electron gun is described. The system utilize a VAX workstation and a Spiricon beam analyzer. A operator window (created through the Vista control software package) controls the emittance measurement system and the graphic presentation of the results. Quadrupole variation method is used for the ATF automatic emittance measurement system. A simple emittance formula was derived to study the performance of the quadrupole variation method, and compared with the ATF experimental data is also presented
Keywords :
computerised monitoring; electron accelerators; linear accelerators; particle beam diagnostics; physics computing; ATF; Accelerator Test Facility; BNL photocathode electron gun; Spiricon beam analyzer; VAX workstation; Vista control software package; automatic emittance measurement; electron beam; graphic presentation; operator window; quadrupole variation method; transverse emittance; Automatic control; Cathodes; Control systems; Electron beams; Electron emission; Equations; Laboratories; Particle beam measurements; Particle beams; Size measurement;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.309364
