Readout Electronics Prototype of TOF Detectors in CEE of HIRFL

Lu, Jiaming; Liu, Zhao; Qin, Jiajun; Xu, Haoqian; Cao, Jie; Liu, Shubin; An, Qi

doi:10.1109/tns.2021.3093544

Cited by 20 publications

(13 citation statements)

References 15 publications

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“…The starting time signal is provided by T 0 installed on the upstream of the target. For eTOF and iTOF, the high performance time digitization modules (TDMs) are adopted to obtain high precision timing information [28]. The zero-degree counter (ZDC) [41] is located behind all other detector components and the magnetic field, in order to deliver the information related to the reaction plane and the centrality by measuring the charge-resolved spectators in the very forward region.…”

Section: Jinst 19 T02018mentioning

confidence: 99%

“…FPGA technology has obvious advantages of compact space, low power consumption, strong adaptability and good scalability [20], as well as of convenient operation for remote control [20][21][22]. Meanwhile, functions including digital signal processing algorithms [23][24][25], time digitization design [26][27][28] and track reconstruction [29,30], can be implemented in the FPGA-based trigger system, as demonstrated by the wide applications in high energy experiments like ATLAS [31,32], ALICE [33,34], and CMS [35,36] etc, as well as low energy experiments, for instance CSHINE [37].…”

Section: Introductionmentioning

confidence: 99%

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The trigger system for the HIRFL-CSR external-target experiment

Guo,

Xu,

et al. 2024

J. Inst.

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A trigger system has been designed and implemented for the external-target experiment (CEE), which is under construction at the heavy ion facility in Lanzhou, cooling storage ring (HIRFL-CSR). The experiment aims at studying high-density nuclear matter properties with heavy ion collisions in the GeV energy regime. The trigger system adopts a master-slave structure and a serial data transmission mode using optical fiber to deal with multi subdetectors and long-distance signal flow. The trigger logic, based on the field programmable gate array (FPGA) technologies, can be accessed by means of command register and remotely reconfigured online according to the experimental settings. The trigger system has been tested in a test beam experiment involving the subdetector prototypes. It is demonstrated that the trigger system functions correctly and meets physical requirements of the experiment.

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Section: Jinst 19 T02018mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The trigger system for the HIRFL-CSR external-target experiment

Guo,

Xu,

et al. 2024

J. Inst.

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“…However, the overall time jitters of NINO/HPTDC or PADI/GET4 are usually beyond 20 ps [27,28]. The electronic team of the CEE-iTOF group achieves a high time precision measurement circuit by employing an FEE module utilizing NINO chip and a time-digitization-module (TDM) with double-chain TDL FPGA TDC, as reported in [29]. The time precision via a 10-m-long coaxial cable was tested using an 81180A generator in laboratory.…”

Section: Readout Electronicsmentioning

confidence: 99%

CEE inner TOF prototype design and preliminary test results

Wang

Shao

et al. 2022

J. Inst.

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The Cooling Storage Ring (CSR) External-target Experiment (CEE) is the first multi-purpose nuclear physics experimental device to operate in the GeV energy range at the Heavy-Ion Research Facility (HIRFL-CSR) in Lanzhou, China.The primary goals of the CEE are to study the bulk properties of dense matter and to understand the quantum chromo-dynamic (QCD) phase diagram by measuring the charged particles produced in heavy-ion collisions at the target region with large acceptance. An inner time of flight (iTOF) system has been proposed to measure the multiplicity, angular distribution, and time information of the charged particles. Herein, we introduce the performance requirements of iTOF according to calculations and GEANT4 simulations. The proposed system is characterized by high granularity and time performance, hence, the conceptual design of the iTOF wall adopts high granularity Multi-gap Resistive Plate Chambers (MRPC) with a time resolution around 30 ps. To evaluate the MRPC design, the cosmic ray test was performed. A timing resolution better than 28 ps and an efficiency better than 98% have been achieved for MIPs, as interpreted by the cosmic ray GEANT4 simulation of time jitter components.

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“…ime-to-digital converters (TDCs) are simply high-precision time-interval meters, converting a time interval (TI) into a digital code. (R2, comment 1) They are widely used in industrial and scientific applications, including light detection and ranging (LiDAR) for automatic vehicles and robotics [1]- [3], 3-D imaging [4]- [6], surveying [7], Raman spectroscopy [8], [9], hardware trojan detection [10], temperature sensing [11], [12], random number generation [13], [14], particle physics [15]- [17], positron emission tomography (PET) [18], fluorescence lifetime imaging microscopy (FLIM) [19] and space sciences [20].…”

Section: Introductionmentioning

confidence: 99%