Bunch Current Measurement Using a High-Speed Photodetector at HLS II

@article{Zhou2017BunchCM,
  title={Bunch Current Measurement Using a High-Speed Photodetector at HLS II},
  author={Tianyu Zhou and Yongliang Yang and Baogen Sun and Ping Lu and Fangfang Wu and Jigang Wang and Zeran Zhou and Qing Luo and Qian Wang and Hao Li},
  journal={IEEE Transactions on Nuclear Science},
  year={2017},
  volume={64},
  pages={1886-1890}
}
This paper presents a novel bunch current measurement system based on an ultrafast photodetector and a high-speed digitizer at Hefei light source II (HLS II). We use a metal–semiconductor–metal photodetector to measure the emitted optical synchrotron radiation intensity directly, representing the bunch current intensity. To achieve bunch-by-bunch resolution, the sampling rate of the system is nearly 225 GS/s, which is achieved via a dedicated equivalent sampling algorithm. The detailed… 

Figures from this paper

Touschek lifetime study based on the precise bunch-by-bunch BCM system at SSRF

Continuous tracking of bunch charges is the key to maintain stable operations in a storage ring in top-up mode. Recently, a precise bunch-by-bunch beam-current measurement (BCM) system has been

Bunch-by-bunch three-dimensional position and charge measurement in a storage ring

Bunch-by-bunch beam parameters monitor is a very useful tool for accelerator operation and optimization. An in situ bunch-by-bunch three-dimensional position and charge measurement system has been

Experimental Research on HLS-II Performance by Means of the RF Phase Modulation Technique

In this article, radio frequency (RF) phase modulation (PM) technology is introduced to effectively improve the beam lifetime and study the longitudinal beam dynamics at Hefei Light Source-II

References

SHOWING 1-10 OF 14 REFERENCES

“BUNCHVIEW” A FAST AND ACCURATE BUNCH-BY-BUNCH CURRENT MONITOR

BunchView is a system for the direct measurement of the current from each bunch circulating in a storage ring based on the analysis of the RF-signals delivered by a set of striplines. This paper

HLS bunch current measurement system

Bunch current is an important parameter for studying the injection fill-pattern in the storage ring and the instability threshold of the bunch, and the bunch current monitor also is an indispensable

A study of pickup and signal processing for HLS-II bunch current measurement system

For the HLS-II bunch current measurement system, in order to obtain the absolute value of bunch current, the calibration factor should be determined by using DCCT. At the HLS storage ring, the

Design of BEPCII bunch current monitor system

BEPC II is an electron-positron collider designed to run under multi-bunches and high beam current condition. The accelerator consists of an electron ring, a positron ring and a linear injector. In

PEP-II bunch-by-bunch current monitor

  • M. ChinJ. Hinkson
  • Physics
    Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167)
  • 1997
PEP-II is an asymmetric B-Factory that will have 2200 meter rings storing 9 GeV electrons and 3.1 GeV positrons, each with as many as 3492 beam bunches. To minimize beam-beam instabilities it is

BUNCH BY BUNCH CURRENT AND LIFETIME MEASUREMENTS

A dedicated system, based on digital sampling of beam signals with a commercial oscilloscope, has been developed to measure bunch by bunch current in the DAΦNE collider. It provides an automated tool

Monitoring the charge bunch-by-bunch for the SSRF storage ring: Development and application

Bunch charge uniformity controlling is very important for top-up operation of the storage ring.In order to monitor filling pattern and measure the bunch charge precisely,a PXI waveform

THE UPGRADE PROJECT OF HEFEI LIGHT SOURCE (HLS)

To enhance the performance of Hefei Light Source, which was designed and constructed two decades ago, an upgrade project is undergoing. The detail upgrade scheme was described in this paper. Firstly,