分类: 核科学技术 >> 核探测技术与核电子学 提交时间: 2024-03-07
摘要: The High Energy Cosmic-Radiation Detection (HERD) facility is planned to launch in 2027 and scheduled to be installed on the China Space Station. It serves as a dark matter particle detector, a cosmic ray instrument, and an observatory for high-energy gamma rays. A transition radiation detector placed on one of its lateral sides serves dual purpose, (i) calibrating HERD’s electromagnetic calorimeter in the TeV energy range, and (ii) serving as an independent detector for high-energy gamma rays. In this paper, the prototype readout electronics design of the transition radiation detector is demonstrated, which aims to accurately measure the charge of the anodes using the SAMPA application specific integrated circuit chip. The electronic performance of the prototype system is evaluated in terms of noise, linearity, and resolution. Through the presented design, each electronic channel can achieve a dynamic range of 0-100 fC, the RMS noise level not exceeding 0.15 fC, and the integral nonlinearity was less than 0.2%. To further verify the readout electronic performance, a joint test with the detector was carried out, and the results show that the prototype system can satisfy the requirements of the detector’s scientific goals.
分类: 心理学 >> 社会心理学 分类: 心理学 >> 实验心理学 分类: 心理学 >> 心理学其他学科 提交时间: 2022-11-21
摘要: The compromise effect is common in shopping. Is it our aversion to extremes that have led to compromise? Experiment 1 manipulated the psychological expected loss values among the alternative options based on expected-loss minimization theory. Experiment 2 further verified that the extremeness aversion theory supports the compromise effect by manipulating the psychological proximity of contextual data (excited vs. calm) to mental representational clarity (EL size) based on the context effect theory. The results showed that the smaller the gap in psychological expectancy loss, the more pronounced the compromise effect was. Excited situation data weakened the compromise effect in groups with a greater gap in psychological expectancy loss, while the compromise effect was more obvious in groups with a larger gap in psychological expectation loss. Calm situation data enhanced the compromise effect in groups with a larger loss in psychological expectancy and weakened the compromise effect.