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

Xu, Xingyi; Leng, Yongbin; Zhou, Yunpeng; Gao, Bo; Chen, Jian; Cao, Shanshan

doi:10.1103/physrevaccelbeams.24.032802

Cited by 9 publications

(5 citation statements)

References 25 publications

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“…3. The primary core algorithms are used for longitudinal phase extraction based on cross-correlation, response function reconstruction based on software resampling, and refilled bunch signal extraction [32].…”

Section: Calculation Modulementioning

confidence: 99%

HOTCAP: a new software package for high-speed oscilloscope-based three-dimensional bunch charge and position measurement

Leng

Gao

et al. 2021

NUCL SCI TECH

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A software package to be used in high-speed oscilloscope-based three-dimensional bunch-by-bunch charge and position measurement is presented. The software package takes the pick-up electrode signal waveform recorded by the high-speed oscilloscope as input, and it calculates and outputs the bunch-by-bunch charge and position. In addition to enabling a three-dimensional observation of the motion of each passing bunch on all beam position monitor pick-up electrodes, it offers many additional features such as injection analysis, bunch response function reconstruction, and turn-by-turn beam analysis. The software package has an easy-to-understand graphical user interface and convenient interactive operation, which has been verified on the Windows 10 system.

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Section: Calculation Modulementioning

confidence: 99%

HOTCAP: a new software package for high-speed oscilloscope-based three-dimensional bunch charge and position measurement

Leng

Gao

et al. 2021

NUCL SCI TECH

Self Cite

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show abstract

“…However, the bunch oscillation is not in phase during injection, and TByT data cannot precisely explain the behavior of the beam. Thus, the bunch-by-bunch (BByB) system [5,6] is necessary to set up.…”

Section: Introductionmentioning

confidence: 99%

Bunch-by-bunch transverse position measurement during injection

Huang,

Hsu,

Liao

et al. 2024

J. Phys.: Conf. Ser.

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Bunch-by-bunch systems have been developed at the Taiwan Light Source and the Taiwan Photon Source to monitor transverse position and filling patterns. The system comprises four channels with a 500 MHz sampling rate synchronized with the accelerator’s radio frequency. It is utilized to diagnose injection transients due to kick mismatch, beam oscillations resulting from damped betatron oscillations and wakefield, and monitor the injection current of each bunch.

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“…Generally, the transverse dipolar oscillations are studied by analyzing the signals from the Beam Position Monitor (BPM) electrodes on the time scale of bunch-by-bunch and calculates the transverse positions of each bunch by Δ/Σ algorithm, consequently obtaining the transverse dipolar oscillations of each bunch in the storage ring [8,9]. However, since the quadrupole signal component from the BPM…”

Section: Introductionmentioning

confidence: 99%

A computing module for speeding up the bunch-by-bunch measurement of transverse positions and transverse profiles within injection period

Wu,

Wang,

et al. 2024

J. Inst.

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The Multi-Bend-Achromat (MBA) structure of the Diffraction-limited Synchrotron Light Source (DLSR) makes the dynamic range of its injection significantly smaller, thus posing a more demanding challenge for the stable injection of beams. To investigate the possible instabilities during the injection process, multi-anode photomultiplier tubes (MAPMT) are used in bunch-by-bunch measurements to obtain the transverse positions and transverse profiles of the bunched beams as they are injected. However, the data processing time witnessed in prior measurements posed a significant challenge in obtaining this information in time, thus failing to meet the stringent demands of online measurements. Consequently, this paper proposes one computing module, engineered to enhance the speed of bunch-by-bunch measurements of transverse positions and profiles. This solution is capable of delivering measurement results for each bunch in the filling pattern, all within the specified injection period.

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

Cited by 9 publications

References 25 publications

HOTCAP: a new software package for high-speed oscilloscope-based three-dimensional bunch charge and position measurement

HOTCAP: a new software package for high-speed oscilloscope-based three-dimensional bunch charge and position measurement

Bunch-by-bunch transverse position measurement during injection

A computing module for speeding up the bunch-by-bunch measurement of transverse positions and transverse profiles within injection period

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