Prototype of readout electronics for GAEA gamma spectrometer of Back-n facility at CSNS

Xie, Likun; Cao, Ping; Yu, Tao; Jiang, Zaihong; An, Qi; Li, J.; Li, C.; Wang, Z.; Bai, Huaiyong; Bai, Jiaojiao; Bao, Jie; Chen, Q.; Chen, Y.; Chen, Z.; Cui, Zeng. Qi.; Fan, A.; Fan, Ruirui; Feng, C. Q.; Fan, Feng; Gao, Kaixiong; Gu, Min; Han, Chunyang; Han, Zijie; He, Guo‐Zhong; He, Yuefeng; Yang, Hong; Hu, Yiwei; Huang, Hanxiong; Jia, W.; Jiang, Hao; Jiang, Wei; Jin, Zhengyao; Kang, Lihua; Li, B.; Li, G.; Li, Q.; Li, X.; Li, Y.; Liu, J.; Liu, R.; Liu, S.; Luan, Guangyuan; Ning, Congqin; Qi, Binbin; Ren, Jie; Ren, Zhongzhou; Ruan, X. C.; Zhang, Song; Tan, Zhixin; Tang, Jing; Tang, S.W.; Wang, L.; Wang, P.; Wen, Zhengqi; Wu, X. G.; Yi, Yang; Han, Yi; Yu, Yongji; Zhang, G.; Zhang, L.; Zhang, M.; Zhang, Q.; Zhang, X.; Zhang, Y.; Zhang, Y.; Zhang, Z.; Zhao, Mengdie; Zhou, Lei; Zhou, Zhihao; Zhu, K.

doi:10.1088/1748-0221/17/03/p03022

Cited by 3 publications

(1 citation statement)

References 18 publications

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“…The INPC has several neutron science facilities, such as DT and DD neutron accelerators, and Chinese Mianyang research reactor (CMRR) [29], which provide a good foundation for the study of the fission progress. Moreover, the China Spallation Neutron Source (CSNS) [1,30,31], the first high-performance pulse spallation neutron source, has been put into use, making the next generation of fission studies possible by providing high neutron intensity and a wide spectrum ranging from sub-thermal to hundreds of MeV. As a result, the development of an experimental program for the needs of modern theory and application is underway.…”

Section: Jinst 17 P09004mentioning

confidence: 99%

Detection of correlated fission fragments with a twin Frisch-grid ionization chamber

et al. 2022

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Twin Frisch-grid ionization chambers (TFGICs) have been widely used in the measurement of total kinetic energy (TKE), angular distribution, mass, and charge of the correlated fission fragments. To study these correlated fission parameters, we have developed a TFGIC with a digital acquisition system for use at both the Chinese Mianyang research reactor (CMRR) and neutron science facility in the Institute of Nuclear Physics and Chemistry (INPC), as well as the China Spallation Neutron Source (CSNS). The distribution of the electric field was investigated with Garfield toolkit, the results showed that the ratio of the electric field of the collect region to the drift region (Ec /Ed ) must be greater than a critical value Z (1.78). An individual experiment, carried out with a compound alpha source (241Am and 243Am), was used to validate the preliminary performance of this detector. The effects of the electric field on the anode pulse height agreed well with the simulation results. Furthermore, the results also indicated that the energy resolution of (68.40 ± 1.07) keV at 5.39 MeV (243Am) and (69.67 ± 1.09) keV at 5.49 MeV (241Am) could be achieved. An initial in-beam fission experiment of 235U reaction with 14 MeV neutrons was also performed to test the setup, and the results showed that the reconstructed emission angle could achieve a resolution of 0.221 ± 0.002 on the difference of the cosines determined from both halves of TFGIC. The present work primarily reported the development of a TFGIC with a digital acquisition system in INPC.

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Section: Jinst 17 P09004mentioning

confidence: 99%

Detection of correlated fission fragments with a twin Frisch-grid ionization chamber

et al. 2022

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Detector development at the Back-n white neutron source

Fan

Li²,

Bao³

et al. 2023

Radiat Detect Technol Methods

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Purpose Back-n is a white neutron beamline at China spallation neutron source, which was established in the year of 2018. It is a powerful facility for nuclear data measurement, neutron detector calibration, and radiation effect research. Method A series of detectors were built for different experiments, including beam monitoring, beam profile measurement, neutron induced secondaries (fission fragments, light charged particles and gamma) cross section measurement, and neutron resonance radiography, etc. A common digitization electronics and a cluster-based DAQ were developed for these detector systems. Most detectors have been employed at Back-n and serviced for experiments from the beginning of the beamline running. Results and conclusion As an overview of detectors of Back-n, the details of the detector design and the experiment performing are described in this paper. Some developing systems, e.g., MTPC and B-MCP, are also included.

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Enhanced throughput message streaming methods for DAQ systems of physics experiments

Yang,

Cao,

Wang

et al. 2024

J. Inst.

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In nuclear and particle experiments, to achieve a real-time software-based data acquisition (DAQ) system, a message streaming platform is adopted as a solution for real-time data streaming transmission, facilitating a decoupled and scalable architecture. As increasing data rate in recent experiments demands higher and higher throughput, existing message streaming platforms lack of high single-node throughput, guarantees of reliability, and sequentiality for high-throughput transmission applications. This paper introduces enhanced throughput message streaming methods for DAQ systems, named DAQMQ. DAQMQ utilizes in-memory storage to store messages during transmission, offering high throughput performance and configurable message retention capability. Reliability in high-throughput transmission is strictly guaranteed by employing a two-phased acknowledgment mechanism. By fast reorganizing message streams in real-time, DAQMQ achieves high-throughput non-blocking sequential transmission. Evaluations conducted on ordinary PCs with 10-Gigabit network connections show that DAQMQ achieves a stable single-node throughput of 9.0 Gbit/s even when handling up to 1024 topics. Furthermore, DAQMQ achieves sequential transmission throughput close to that of non-sequential transmission. Tests with a broker or consumer breakdown during high-throughput transmission demonstrate DAQMQ's reliability and asynchronous transmission ability.

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Prototype of readout electronics for GAEA gamma spectrometer of Back-n facility at CSNS

Cited by 3 publications

References 18 publications

Detection of correlated fission fragments with a twin Frisch-grid ionization chamber

Detection of correlated fission fragments with a twin Frisch-grid ionization chamber

Detector development at the Back-n white neutron source

Enhanced throughput message streaming methods for DAQ systems of physics experiments

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