Molten salt reactors (MSRs) are a promising candidate for Generation IV reactor technologies, and the small modular molten salt reactor (SM-MSR), which utilizes low-enriched uranium and thorium fuels, is regarded as a wise development path to accelerate deployment time. Uncertainty and sensitivity analyses of accidents guide nuclear reactor design and safety analyses. Uncertainty analysis can ascertain the safety margin, and sensitivity analysis can reveal the correlation between accident consequences and input parameters. This data set consists of 3 tables, which are “30 parameters weight table”, “simulation results table” and “statistical data table”.

Molten salt reactor is a promising type of reactor with excellent safety and economy benefiting from the stable properties of its molten salt coolant at high temperatures. However, the freezing point of molten salt is usually high enough presencing a risk of coolant freezing that plugs pipelines, the phenomenon of its solid-liquid phase changing is an essential problem. Aims to present the process of the molten salt filling cold pipe with solidification-melting behaviors and study a relatively suitable value of mushy zone constant for molten salt.The commercial CFD code is used to numerically simulate the process and a existing experiment is used to support the research. The cases results show that mushy zone constant (5×103≤A-mush≤5×105) significantly affect penetration distance and A-mush= 5×104 is suitable for molten salt in mushy zone. Based on the study, proper selection of mushy zone constant is very much necessary for the accurate prediction of solid-liquid phase change behaviors and characteristics. The transient process of molten salt filling cold pipe is presented detailedly and a method for determining the mushy zone constant is proposed.

High-performance MXene-based polymer nanocomposites are well suited for various industrial applications due to their excellent mechanical, thermal and other properties. However, fabrication of flame-retardant polymer/MXene nanocomposites remains a challenging task due to the limited flame-retardant properties of MXene itself. In this study, a novel MXene@Ag@PA hybrid material was prepared by radiation modification and complexation reaction, which can be used to further enhance the key properties of ethylene vinyl acetate (EVA), such as mechanical properties, thermal conductivity, flame retardancy and electromagnetic shielding. The addition of two parts of this hybrid material increases the thermal conductivity of EVA by 44.2% and reduces its peak exothermic rate during combustion by 30.1% compared to pure EVA. The material also significantly reduced smoke production and increased residue content. In the X-band, the electromagnetic shielding effectiveness of the EVA composites can reach 20 dB, and we also found that the MXene@Ag@PA hybrid material can be used to further enhance the mechanical properties of EVA composites under electron beam irradiation. This study contributes to the development of MXene-based EVA advanced materials that are fire-safe, high-strength, and have good electromagnetic shielding performance for various applications.

By processing the data collected by the oscilloscope in a MATLAB script and calibrating it with the measurement results of a sreak camera, the beam length and phase information can be obtained bunch by bunch and turn by turn. The uncertainty of a single beam length measurement is better than 1ps, and the resolution can be better than 0.05ps under multi-circle averaging or multi-beam averaging

The interactions between GaInSn, and several metal materials, including pure metals (Ni and Ti) and alloys (316H stainless steel (SS) and GH3535), at 650 °C were investigated. The composition of materials before corrosion are listed in Table 1 and 2. Specimens of Ni (8.0 mm × 8.0 mm × 2.0 mm), Ti (10.0 mm × 8.0 mm × 1.2 mm), 316 H SS (10.0 mm × 8.0 mm × 2.0 mm), and GH3535 alloys (9.0 mm × 9.0 mm × 2.0 mm) were placed into quartz tubes with dimensions of 250 mm (length) × 20 mm (diameter). The specimens were then heated at 650 °C for 5 h. After corrosion in GaInSn, the composition of specimens were listed in Table 3 to 6. The weight changes and XRD data of samples can be found in uploaded files.

The figure data of NST-2022-0052

The observations of the Sydney Particle Study (SPS) were carried out in two stages at the Westmead Air Quality Station by teams of scientists from CSIRO, OEH, and ANSTO. Stage 1 (SPS1) was conducted in summer 2011 (from 5 February to 7 March 2011). SPS involved a comprehensive suite of measurements of atmospheric gases and aerosols in order to better understand the source, the chemical composition and the size distribution of the aerosol and gas-phase secondary aerosol precursors in Sydney.The SPS1 aerosol and gas data collection is presented here.