Title :
The online characterization of the Main Injector BPM
Author_Institution :
Fermi Nat. Accel. Lab., Batavia, IL
Abstract :
The design of the Main Injector beam position monitor (BPM) was driven by the desire to minimize its begun impedance and longitudinal space requirements. The resulting BPM consists of four striplines inset into a section of Main Injector beam pipe. The striplines are combined in pairs to form either a horizontal or a vertical BPM by switches located nearby in the tunnel. The BPM response is decidedly non-linear and furthermore shows sensitivity to the beam position on the orthogonal axis. This paper presents the method in which consecutive measurements in both planes are used to derive the actual (x,y) position in an online environment
Keywords :
booster injectors; particle beam diagnostics; proton accelerators; synchrotrons; Main Injector beam pipe; Main Injector beam position monitor; beam position; impedance requirements; longitudinal space requirements; online characterization; online environment; orthogonal axis; striplines; Clouds; Concrete; Distribution functions; Force control; Integral equations; Nonlinear equations; Numerical analysis; Particle beams; Process control; Space charge;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.794374
