University of Electronic Science and Technology of China

Chengdu University of Technology

Qing Li

Jian Yang

Min Gu

Xiaofeng Yang

Shimin Hu

Guoqiang Zeng

Chuanhao Hu

Hongfang Yu

Gang Sun

Jing Ren

Jian Sun

Yuhui Wang

The present disclosure provides a multi-parameter calibration system for a spectrometer based on a nanosecond light source, including a main channel for outputting nuclear pulse signals, and a coincidence channel for outputting the nuclear pulse signals. Each channel uses current nuclear pulse signals to drive a light-emitting diode (LED) to emit nuclear pulse optical signals, and a simulated scintillator is irradiated to emit nanosecond nuclear pulse optical signals. The present disclosure can respectively test and calibrate multiple parameter performance indexes of the spectrometer throughput baseline restoration spectrometer. The stability of the spectrometer is tested and calibrated through output of certain regular nuclear pulse signals.

Multi-parameter test and calibration system and method for spectrometer based on nanosecond light source

A dynamic network resource allocation method based on network slicing is provided. A historical resource demand dataset of an accessed network slice is inputted into a first neural network for training. Based on a trained first neural network and the historical resource demand of the accessed network slice, a resource demand prediction information corresponding to the accessed network slice in a first prediction time period is determined. Resources are pre-allocated to the accessed network slice based on the resource demand prediction information, and resources are allocated to the accessed network slice when the first prediction time period arrives. In this way, the service provider can reasonably allocate network resources for network slices without violating the SLA, thus avoiding the waste of network resources.

Dynamic network resource allocation method based on network slicing

The present disclosure provides a nuclear detection simulation device based on a nanosecond light source and a nuclear signal inversion technology. Electronic circuits and nuclear pulse current signals are used to drive blue LEDs to emit nuclear pulse optical signals, so as to simulate a scintillator to receive &#x3b3; radiation to emit light, and can simulate point sources and area sources, organic scintillator detectors and inorganic scintillators, scintillation efficiency and detection efficiency, radioactive sources, fast components and slow components, multi-type nuclear pulse signals, a statistical fluctuation phenomenon of nuclear pulses, the electron pair effect, the Compton effect, the photoelectric effect, and self-radiation of the scintillator, generate single or piled-up pulse signals, corresponding energy spectrum curves, and an environmental background spectral line. 3D visualization configuration and a nuclear signal detection process can be subjected to animated demonstration.

Nuclear detection simulation device based on nanosecond light source and nuclear signal inversion technology

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Chengdu, China

Qing Li