Title :
Performance of the RHIC IPM [ionization beam profile monitors]
Author :
Connolly, R. ; Cameron, P. ; Michnoff, R. ; Tepikian, S.
Author_Institution :
Brookhaven Nat. Lab., Upton, NY, USA
fDate :
6/23/1905 12:00:00 AM
Abstract :
Four ionization beam profile monitors (IPM´s) are in RHIC to measure vertical and horizontal profiles in the two rings. Each IPM collects and measures the distribution of electrons in the beamline resulting from residual gas ionization during bunch passage. The IPM´s performed well during the 1999 commissioning run and early in the 2000 run. However as the bunch intensity increased there was a beam-induced ringing that increased in amplitude until it saturated the amplifiers and made the IPM´s unusable. Near the end of the run the cause of the ringing was found and one IPM was fixed. At the start of the 2001 run all four IPM have EMI shielding installed
Keywords :
colliding beam accelerators; ion accelerators; ionisation chambers; particle beam diagnostics; storage rings; EMI shielding; RHIC; beam-induced ringing; bunch intensity; ionization beam profile monitors; Anodes; Assembly; Capacitors; Detectors; Electron beams; Ionization; Optical coupling; Pressure measurement; Pulse amplifiers; Pulse measurements;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.986659
