IBIC 2015

Session

TUBLA

TUBLA

15 Sept 2015, 11:00

MCEC

20. Beam Based Calibration for Beam Position Monitors

Masaki Tejima (KEK)

15/09/2015, 11:00

BPMs and Beam Stability

Invited Oral

Beam position monitoring is one of most fundamental diagnostic tool in accelerator. To keep good performance of the BPM system, the beam-based alignment method is developed and used for more precise BPM alignment and keeping the performance. The signal from BPM is transfer by coaxial cable, and processed by signal processing circuit. The beam position is calculating from the relative ratio...

9. Progress Towards Electron-Beam Feedback at the Nanometre Level at the Accelerator Test Facility (ATF2) at KEK

Philip Burrows (JAI)

15/09/2015, 11:40

BPMs and Beam Stability

Contributed Oral

Ultra-low latency beam-based digital feedbacks have been developed by the Feedback On Nanosecond Timescales (FONT) Group and tested at the Accelerator Test Facility (ATF2) at KEK in a programme aimed at beam stabilisation at the nanometre level at the ATF2 final focus. Three prototypes were tested: 1) A feedback system based on high-resolution stripline BPMs was used to stabilise the beam...

10. Status of the Intrabunch-Feedback Feedback at J-PARC Main Ring

Takeshi Toyama (J-PARC)

15/09/2015, 12:00

BPMs and Beam Stability

Contributed Oral

One of the present obstacles for intensity upgrade of the J-PARC Main Ring is transverse collective instability. We have been developing so called intra-bunch feedback system and in operation during injection flat bottom since last year. But recent beam intensity upgrade push us to improve further the system, namely feedback during acceleration. The revolution frequency changes about 2% and...