Title :
A two-bunch beam position monitor
Author :
Medvedko, E. ; Aiello, R. ; Smith, S.
Author_Institution :
Stanford Linear Accel. Center, Stanford Univ., CA, USA
Abstract :
A new beam position monitor digitizer module has been designed, tested and tuned at SLAC. This module, the electron-positron beam position monitor (epBPM), measures position of single electron and positron bunches for the SLC, linac, PEP II injection lines and final focus. The epBPM has been designed to improve resolution of beam position measurements with respect to existing module and to speed feedback correction. The required dynamic range is from 5×108 to 1011 particles per bunch (46 dB). The epBPM input signal range is from ±2.5 mV to ±500 mV. The pulse-to-pulse resolution is less than 2 μm for 5×1010 particles per bunch for the 12 cm long striplines, covering 30° at 9 mm radius. The epBPM module has been made in CAMAC standard, single width slot, with SLAC type timing connector. 45 modules have been fabricated
Keywords :
CAMAC; analogue-digital conversion; colliding beam accelerators; electron accelerators; electron beam focusing; high energy physics instrumentation computing; linear accelerators; particle beam bunching; particle beam diagnostics; particle beam injection; position measurement; 12 cm; 18 mm; 2.5 to 500 mV; ADC; CAMAC; SLAC; digitizer module; dynamic range; electron-positron beam position monitor; feedback correction; final focus; injection lines; linac; single width slot; timing connector; two-bunch beam position monitor; Dynamic range; Electron beams; Feedback; Linear particle accelerator; Monitoring; Particle beam measurements; Position measurement; Positrons; Signal resolution; Testing;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.751125
