Title :
Methods and instrumentation for bunch shape measurements
Author_Institution :
Inst. For Nucl. Res., Moscow, Russia
Abstract :
Bunch shape is one of the most important and interesting characteristics of a beam in ion linear accelerators. Recently detectors of bunch shape with a transverse scanning of low energy secondary electrons found application in several accelerators. The principle of operation of the detectors is based on a coherent transformation of a longitudinal structure of a beam under study into a transverse distribution of a secondary electron beam through RF scanning. There are three modifications of the detectors: bunch shape monitor, bunch length (shape) and velocity detector and three dimensional bunch shape monitor. The principle of operation of the detectors as well as the peculiarities of the structure and the design of the detectors are described. To demonstrate the possibilities of the detectors the results of measurements with different detectors made at different accelerators are presented
Keywords :
accelerator RF systems; ion accelerators; linear accelerators; particle beam bunching; particle beam diagnostics; secondary electron emission; RF scanning; bunch shape measurements instrumentation; bunch shape monitor; bunch velocity detector; coherent transformation; ion linear accelerators; longitudinal structure; low energy secondary electrons; secondary electron beam; transverse distribution; transverse scanning; Detectors; Electron accelerators; Electron beams; Instruments; Ion accelerators; Ion beams; Linear accelerators; Monitoring; Particle beams; Shape measurement;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.987557
