Title :
RHIC beam loss monitor system design
Author :
Witkover, R. ; Zitvogel, E. ; Michnoff, R.
Author_Institution :
Brookhaven Nat. Lab., Upton, NY, USA
Abstract :
The beam loss monitor (BLM) system is designed to prevent the quenching of RHIC magnets due to beam loss, provide quantitative loss data, and the loss history in the event of a beam abort. The system uses 400 ion chambers of a modified Tevatron design. To satisfy fast (single turn) and slow (100 msec) loss beam criteria and provide sensitivity for studies measurements, a range of over 8 decades is needed. An RC pre-integrator reduces the dynamic range for a low current amplifier. This is digitized for data logging. The output is also applied to an analog multiplier which compensates the energy dependence, extending the range of the abort comparators. High and low pass filters separate the signal to dual comparators with independent programmable trip levels
Keywords :
amplifiers; analogue-digital conversion; colliding beam accelerators; comparators (circuits); data loggers; high-pass filters; ion accelerators; low-pass filters; nuclear electronics; particle beam diagnostics; synchrotrons; RC preintegrator; RHIC beam loss monitor system; Relativistic Heavy Ion Collider; analog multiplier; beam abort; data logging; digitization; dual comparators; energy dependence; high pass filters; independent programmable trip levels; low current amplifier; low pass filters; Connectors; Detectors; Electronic equipment testing; History; Insulation; Laboratories; Low pass filters; Magnets; Monitoring; Packaging;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.751161
