Application of real-time digitization techniques in beam measurement for accelerators

Liu, Zhao; Zhan, Linsong; Gao, Xin; Liu, Shubin; An, Qi

doi:10.1088/1674-1137/40/4/046102

Cited by 4 publications

(2 citation statements)

References 18 publications

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“…(4) The spring force Fk could be calculated using the distance to which the spring was compressed and the spring stiffness coefficient, and the measured friction force f' between the devices was then added to obtain the force on the surface of the measurement plate. (5) The results of the experiment were compared with the simulated values in the graph, and the relative error between the two was calculated. When the flow moves in the channel, the flow pattern changes due to the constraints of channel and plate.…”

Section: Experimental Verification Of Simulation Resultsmentioning

confidence: 99%

“…However, the effective utilization of agricultural irrigation water in China's farmland is low, which indicates the waste of water resources and also affects the yield of crops [3,4], and water use should be planned on a scientific basis to ensure the rational management of irrigation water. Accurate measurement of water quantity in irrigation areas is an important measure to achieve rational allocation of water resources in irrigation areas, and it is of practical importance to design flow measurement devices for water distribution channels that produce accurate measurements and are easy to carry [5,6]. Traditional channel flow measurement methods have the problem of low accuracy [7,8], and the current flow measurement methods that have mainly been studied are the flow-measuring flume method and the novel flow-measuring equipment method.…”

Section: Introductionmentioning

confidence: 99%

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A Study on the Measurement Characteristics of the Spring-Plate Flow Measurement Device

Tao

et al. 2023

Water

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In order to improve the effective utilization of agricultural irrigation water and to reasonably allocate water resources in irrigation areas, it is necessary to use open channel flow measurement devices that are accurate and easy to carry. In this study, a spring-plate flow measurement device with different plate widths was designed. Through a combination of theoretical analysis and numerical simulation, the measurement characteristics of the device in specific channels under conditions of 20–105 m3/h flow were studied, the relationship between the flow rate and the force acting on the plate surface was fitted, and the hydraulic characteristics of water flow during its use, such as pressure, velocity distribution, and head loss, were analyzed. The results show that in the process of using the spring-plate flow measurement device, the force on the plate surface increases with the increase in the flow rate, and the force on the plate surface is related to the flow rate in the channel by a power of 5/6. The width of the measurement plate impacts the accuracy of flow measurement, and the smaller the plate width, the larger the error in flow measurement. The distribution of pressure on the measurement plate is similar to that of static pressure, and the pressure increases with the increase in the width of the measurement plate. The upstream flow velocity of the device is small, and the water level increases due to obstruction of the measurement plate. When it connects to the downstream water surface, the water level rapidly decreases, and the flow velocity increases. In using the spring-plate flow measurement device to measure flow, head loss will be produced, and the magnitude of this loss increases with the increase in the width of the measurement plate. The research results provide a theoretical basis for the application of spring plate flow-measuring devices in irrigation areas.

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Section: Experimental Verification Of Simulation Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Study on the Measurement Characteristics of the Spring-Plate Flow Measurement Device

Tao

et al. 2023

Water

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A new digital beam position and phase measurement implementation based on a field programmable gate array for the high intensity heavy-ion accelerator iLinac

et al. 2022

Review of Scientific Instruments

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A new digital beam position and phase measurement (BPM) system was designed for the ion-Linac accelerator at the high intensity heavy ion accelerator facility. The fundamental and second harmonic signals are retrieved from the BPM electrodes to simultaneously calculate their respective beam positions and phases. All data acquisition and digital signal processing algorithm routines are performed in a field programmable gate array (FPGA). The position and phase information are obtained by using the in-phase and quadrature demodulation method. A practical and straightforward method is used to generate the second harmonic reference signal for processing the second harmonic beam signal. The reconfigurable filters are integrated into the FPGA to allow the measurement of short beam pulse length. The laboratory test results show that the achieved phase resolution is better than 0.2° and 0.03° when the input signal is −60 and −45 dBm, respectively. A position resolution better than 30 μm was achieved for an input power level of approximately −60 dBm, and it can reach 7 μm with the input power higher than −45 dBm. The entire execution time of the algorithm is accomplished within 3.4 µs, which provides a sufficient reaction time for the fast beam interlock signal to the machine protection system. The performance of this newly designed prototype BPM electronics was evaluated with the online proton beam.

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Design and development of beam position monitoring electronics for booster synchrotron

Shrivastava

Chouhan

Khan

et al. 2016

2016 International Conference on Advances in Electrical, Electronic and Systems Engineering (ICAEES)

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Application of real-time digitization techniques in beam measurement for accelerators

Cited by 4 publications

References 18 publications

A Study on the Measurement Characteristics of the Spring-Plate Flow Measurement Device

A Study on the Measurement Characteristics of the Spring-Plate Flow Measurement Device

A new digital beam position and phase measurement implementation based on a field programmable gate array for the high intensity heavy-ion accelerator iLinac

Design and development of beam position monitoring electronics for booster synchrotron

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