Time-stamping system for nuclear physics experiments at RIKEN RIBF
Time-stamping system for nuclear physics experiments at RIKEN RIBF
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RIKEN RIBF 核物理实验时间戳系统
DOI：
10.1016/j.nima.2014.12.051
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发表时间：
2015
影响因子：
1.4
通讯作者：
K. Yoshinaga
中科院分区：
文献类型：
--
作者：
H. Baba;T. Ichihara;T. Ohnishi;S. Takeuchi;K. Yoshida;Y. Watanabe;S. Ota;S. Shimoura;K. Yoshinaga
RIKEN放射性同位素束工厂引进了一个核物理实验时间戳系统。单独的触发信号可以应用于单独的数据采集（DAQ）系统。测量完成后，根据时间戳信息合并单独采集的数据。在典型的实验中，重合触发信号由多个探测器形成，以仅获取期望的事件。时间戳系统允许使用最小偏置触发器。由于符合条件由软件给出，因此可以灵活地识别各种物理事件。当试图确定反应截面时，DAQ系统的生存时间很重要。然而，单独DAQ系统的组合生存时间并不清楚，因为它不仅取决于DAQ死区时间，还取决于重合条件。使用所提出的时间戳系统，可以获取所有的触发定时，从而可以很容易地确定组合的生存时间。组合的生存时间也估计使用Monte Carlo模拟，并将结果与直接测量值进行比较，以评估模拟的准确性。
A time-stamping system for nuclear physics experiments has been introduced at the RIKEN Radioactive Isotope Beam Factory. Individual trigger signals can be applied for separate data acquisition (DAQ) systems. After the measurements are complete, separately taken data are merged based on the time-stamp information. In a typical experiment, coincidence trigger signals are formed from multiple detectors to take desired events only. The time-stamping system allows the use of minimum bias triggers. Since coincidence conditions are given by software, a variety of physics events can be flexibly identified. The live time for a DAQ system is important when attempting to determine reaction cross-sections. However, the combined live time for separate DAQ systems is not clearly known because it depends not only on the DAQ dead time but also on the coincidence conditions. Using the proposed time-stamping system, all trigger timings can be acquired, so that the combined live time can be easily determined. The combined live time is also estimated using Monte Carlo simulations, and the results are compared with the directly measured values in order to assess the accuracy of the simulation.
影响因子：
8.6
作者：
S. Nishimura;Z. Li;H. Watanabe;K. Yoshinaga;T. Sumikama;T. Tachibana;K. Yamaguchi;M. Kurata-Nishimura-M.-Kurata
通讯作者：
S. Nishimura;Z. Li;H. Watanabe;K. Yoshinaga;T. Sumikama;T. Tachibana;K. Yamaguchi;M. Kurata-Nishimura-M.-Kurata
富中子核109Nb的低位能级结构：可能的扁圆异构体
影响因子：
4.4
作者：
H. Watanabe
通讯作者：
H. Watanabe