Title :
RHIC beam loss monitor system initial operation
Author :
Witkover, R.L. ; Michnoff, R.J. ; Geller, J.M.
Author_Institution :
Brookhaven Nat. Lab., Upton, NY, USA
Abstract :
The RHIC beam loss monitor (BLM) system is designed to prevent beam loss quenching of the superconducting magnets, and acquire loss data. Four hundred ion chambers are located around the rings to detect losses. The required 8-decade range in signal current is compressed using an RC pre-integrator ahead of a low current amplifier. A beam abort may be triggered if fast or slow losses exceed programmable threshold levels. A micro-controller based VME module sets references and gains and reads trip status for up to 64 channels. Results obtained with the detectors in the RHIC Sextant Test and the prototype electronics in the AGS-to-RHIC (AtR) transfer line are presented along with the present status of the system
Keywords :
accelerator control systems; accelerator magnets; colliding beam accelerators; ion accelerators; microcontrollers; particle beam diagnostics; superconducting magnets; synchrotrons; RC preintegrator; RHIC beam loss monitor system; Relativistic Heavy Ion Collider; Sextant Test; initial operation; ion chambers; low current amplifier; microcontroller based VME module; superconducting magnets; threshold levels; transfer line; Circuit testing; Detectors; Electronic equipment testing; Insulation; Linear particle accelerator; Monitoring; Particle beams; Power supplies; Superconducting magnets; Voltage;
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.1999.794435
