An improved technology for eliminating nondeterministic latency in the L1 trigger system
文献类型：期刊论文
| 作者 | Qian Yi1 ; Kong Jie1; Su Hong1; Du Zhongwei1,2; Zhao Xingwen1
|
| 刊名 | NUCLEAR SCIENCE AND TECHNIQUES
 |
| 出版日期 | 2013-04-20 |
| 卷号 | 24 |
| 关键词 | Nondeterministic Latency Field-programmable Gate Array L1 Trigger Zero-delay Broadening |
| ISSN号 | 1001-8042 |
| 文献子类 | Article |
| 英文摘要 | Gamma Ray Array Detector (GRAD) is one of external target facility subsystems in the Cooling Storage Ring on the Heavy Ion Research Facility at Lanzhou (HIRFL-CSR). The trigger subsystem of GRAD is required to make a fast L1 trigger decision with a fixed latency for the data acquisition. Because the hit signals from the detector are asynchronous with the local clock of the trigger system, a nondeterministic latency (the value changes between zero and one clock period) is generated when the synchronous receivers of the conventional trigger system process the hit signals. In this paper, an improved trigger logic based on a field-programmable gate array is developed, and comprised of zero-delay broadening circuits as receivers and an improved adding circuit designed for the new receivers. Software simulation and experimental measurement have been conducted. Comparison with the conventional trigger logic, the improved trigger logic has the advantage of eliminating the nondeterministic latency and reducing the total processing latency. |
| 资助项目 | National Natural Science Foundation of China[11079045] |
| WOS研究方向 | Nuclear Science & Technology ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000328921600009 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://119.78.100.186/handle/113462/48075]  |
| 专题 | 近代物理研究所_科学仪器中心 |
| 通讯作者 | Su Hong |
| 作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Univ Sci & Technol China, State Key Lab Particle Detect & Elect, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qian Yi,Kong Jie,Su Hong,et al. An improved technology for eliminating nondeterministic latency in the L1 trigger system[J]. NUCLEAR SCIENCE AND TECHNIQUES,2013,24. |
| APA | Qian Yi,Kong Jie,Su Hong,Du Zhongwei,&Zhao Xingwen.(2013).An improved technology for eliminating nondeterministic latency in the L1 trigger system.NUCLEAR SCIENCE AND TECHNIQUES,24. |
| MLA | Qian Yi,et al."An improved technology for eliminating nondeterministic latency in the L1 trigger system".NUCLEAR SCIENCE AND TECHNIQUES 24(2013). |
入库方式： OAI收割
来源：近代物理研究所
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