Rapid growth of machine learning techniques has arisen over last decades, which results in wide applications of machine learning for solving various complex problems in science and engineering. In the last decade, machine learning

There are many factors that affect the measurement accuracy of binocular vision system. Currently, the influence of system structure parameters on the measurement accuracy mainly includes the angle between optical axis and baselin

A short wavelength of 780 nm semiconductor laser has been designed and fabricated, and the mode locking by external cavity feedback has been studied. The epitaxial layers were prepared by the metal organic chemical vapor depositio

The high-power solid-state laser facility puts forward stringent requirements for the additional wavefront distortion and attitude stability of the large-aperture mirror. While ensuring attitude stability, the peak-to-valley (PV)

In view of the influence of ultrasonic vibration on the temperature field of laser ablation of aluminum surface, a three-dimensional numerical model was established, and the temperature field of ultrasonic vibration assisted laser

We present a technical research experimentally demonstrating automated alignment on off-axis eight-pass laser amplifier. The mentioned technique aims to replace manual alignment method with automatic alignment system on the multip

A photonic crystal fiber (PCF) structure with low loss, broadband near-zero dispersion and high nonlinearity is proposed. The diameter of the air hole in the cladding increases gradually from the core to the cladding. The dispersi

The late effect of high-altitude electromagnetic pulse (E3) will cause dramatic changes in the Earth’s magnetic field and form a ground induced electric field. The induced electric field is equivalent to forming a loop between the

To realize quick design of the gyro-klystron amplifiers, a kind of numerical simulation method based on the single mode self-consistent nonlinear theory of gyrotrons was investigated. The single mode theory can’t be used to match

The large path loss limits the transmission distance of terahertz wireless communication in the atmosphere. To realize long-range transmission of terahertz waves between the ground and the satellite, the first and key step is to f

The commutation phenomena produced by cathode outgassing ionization is a possible factor to limit work performance of magnetically insulated transmission line oscillator (MILO), and also is the main obstacle to limit its repeat fr

To improve the anti-HEMP ability of very high frequency wireless communication systems, based on the vulnerability analysis results in the early stage, the design principle and indicators of the combination of transient discharge

It is known that the ion channel can limit the radial expansion of the electron beam during long-range propagation in the plasma environment. Previous research typically concentrated on the interaction between the beam and plasma,

Terahertz gyrotron can achieve high output power and has a certain frequency tuning range, thus it is an ideal high power terahertz radiation source for NMR spectroscopy system. A 263 GHz, TE5,2 fundamental harmonic frequency cont

A hermetically sealed X-ray framing tube with CsI photocathode is proposed to solve the problems of poor stability and low detection quantum efficiency brought by the open structure framing tube with Au photocathodes. Two microstr

To measure accurately the thickness and its distribution of capsule, the white light reflection spectrum measurement technology is studied. The basic principle of white light reflection spectrum and the corresponding data processi

The superconducting magnet power supply for the Comprehensive Research Facility for Fusion Technology (CRAFT) has the abilities of large current steady-state operation, high power pulse operation and transient fault suppression, w

To meet the requirements of Hefei Advanced Light Facility (HALF) for high quality injection beam, a photocathode RF gun is developed as the electron source of the injector in the R&D project. To obtaining an electron beam with hig

Electron source generates electron bunch and dominates the electron beam quality for an accelerator. We put forward a novel mechanism of electron source in this paper. A great amount of hot electrons with several hundred keV can b

The short-pulse neutron source based on ultra-short and ultra-intense laser is an ideal neutron source for ultra-fast neutron detection. For many applications of the novel laser neutron source, the neutron yield now becomes a majo

The control system of Insertion Device (ID) for High Energy Photon Source (HEPS) is mainly responsible for the opening and closing motion control of the magnetic gap of ID. The safe movement of the ID control system is essential f

The accuracy of beam position measurement is affected by the gain inconsistency of the four channels of the digital BPM. Based on the existing hardware and the requirement of beam position monitor (BPM) measurement accuracy, a des

The design process and experimental results of a transfer capacitor used in a large vertical polarization bounded wave simulator are introduced. The capacitor adopts modular design based on capacitor elements and components, and f

This paper introduces The fractional ratio pulse modulator for S-band 50 MW klystron, which has the characteristics of pulse transformer ratio of 1∶300, primary voltage of 1.25 kV and output peak power of 113 MW. The selection of