Title :
Emittance measurements at the Bates linac
Author :
Jacobs, K.D. ; Flanz, J.B. ; Russ, T.
Author_Institution :
MIT Bates Linear Accel. Center, Middleton, MA, USA
Abstract :
An emittance measuring system has been installed at the Bates Linear Accelerator Center. The system consists of three wire scanners used to measure the electron beam profile, and a microcomputer for data acquisition and processing. The scanner measures the horizontal and vertical beam size with a possible resolution of 25 μm. The horizontal and vertical beam phase spaces can then be determined. Results of measurements are presented. Calculations relating the theoretical accuracy of the emittance measurements to the distance separating the scanners and to the beam waist´s location and size are also presented. Another technique for measuring emittance has also been used. This technique involves using a wire scanner to measure the beam size at a fixed location, as a function of the strength of an upstream quadrupole
Keywords :
data acquisition; electron accelerators; linear accelerators; microcomputer applications; particle beam diagnostics; physics computing; Bates Linear Accelerator Center; Bates linac; data acquisition; electron beam profile; emittance measuring system; fixed location; horizontal beam size; microcomputer; upstream quadrupole; vertical beam size; wire scanners; Extraterrestrial measurements; Linear accelerators; Linear particle accelerator; Particle beam measurements; Particle beam optics; Particle beams; Particle measurements; Phase measurement; Position measurement; Size measurement;
Conference_Titel :
Particle Accelerator Conference, 1989. Accelerator Science and Technology., Proceedings of the 1989 IEEE
Conference_Location :
Chicago, IL
DOI :
10.1109/PAC.1989.73501