2018 Vol. 30, No. 4
Recommend Articles
column
- 高功率激光与光学
- 本期封面及目录
- Research Letter
- High Power Laser and Optic
- ICF and Laser Plasma
- High Power Microwave
- Terahertz Technology
- Complex Electromagnetic Environment
- Particle Beams Technology
- Pulsed Power Technology
- Accelerator Technology
- Nuclear Science and Engineering
- Applications of Laser and Particle Beams
Display Method:
2018,
30: 040101.
doi: 10.11884/HPLPB201830.180042
Abstract:
In this paper, laser speckle and interference fringe were effectively restrained by the use of diffractive optical element for smoothing beam, multimode fiber and the lens coupling expander technology. The vignette phenomenon on the imaging plane was...
In this paper, laser speckle and interference fringe were effectively restrained by the use of diffractive optical element for smoothing beam, multimode fiber and the lens coupling expander technology. The vignette phenomenon on the imaging plane was...
2018,
30: 041001.
doi: 10.11884/HPLPB201830.170124
Abstract:
A high energy, high beam quality short-pulse diode-pumped Nd: YAG master oscillator power-amplifier (MOPA) laser with two amplifier stages is demonstrated. The two-rod birefringence compensation is used as beam quality control measure, which presents...
A high energy, high beam quality short-pulse diode-pumped Nd: YAG master oscillator power-amplifier (MOPA) laser with two amplifier stages is demonstrated. The two-rod birefringence compensation is used as beam quality control measure, which presents...
2018,
30: 041002.
doi: 10.11884/HPLPB201830.170452
Abstract:
The effect of the gain medium position in the resonator on the external second harmonic generation (SHG) conversion efficiency was studied. A MgO-doped periodically poled LiNbO3 crystal (MgO: PPLN) was utilized to achieve a 532-nm green-light laser o...
The effect of the gain medium position in the resonator on the external second harmonic generation (SHG) conversion efficiency was studied. A MgO-doped periodically poled LiNbO3 crystal (MgO: PPLN) was utilized to achieve a 532-nm green-light laser o...
2018,
30: 041003.
doi: 10.11884/HPLPB201830.170387
Abstract:
The wavelengths of 1064 nm and 532 nm of the pulsed Nd: YAG laser were used to irradiate the fused silica to study the interaction between different wavelengths of laser with fused silica. The laser induced damage characteristics in fused silica surf...
The wavelengths of 1064 nm and 532 nm of the pulsed Nd: YAG laser were used to irradiate the fused silica to study the interaction between different wavelengths of laser with fused silica. The laser induced damage characteristics in fused silica surf...
2018,
30: 041004.
doi: 10.11884/HPLPB201830.170397
Abstract:
The heat transfer performance of deionized water flowing in the large length/width ratio pin-fin micro channel was experimentally studied with two different ratios of channel to fin. The results show that, when the Reyonolds number is less than 650 a...
The heat transfer performance of deionized water flowing in the large length/width ratio pin-fin micro channel was experimentally studied with two different ratios of channel to fin. The results show that, when the Reyonolds number is less than 650 a...
2018,
30: 041005.
doi: 10.11884/HPLPB201830.170483
Abstract:
A 440 nm solid-state blue laser produced by a periodically poled lithium niobate (PPLN) crystal based on cascaded third-harmonic generation (THG) is introduced. According to Sellmeier equation and phase-matching conditions of second-harmonic generati...
A 440 nm solid-state blue laser produced by a periodically poled lithium niobate (PPLN) crystal based on cascaded third-harmonic generation (THG) is introduced. According to Sellmeier equation and phase-matching conditions of second-harmonic generati...
2018,
30: 042001.
doi: 10.11884/HPLPB201830.170311
Abstract:
The morphology on the surface of hollow glass mircospheres(HGMs) in inflating process was investigated in this work. The experimental results indicate that the main factors influencing the surface of HGM include temperature and pressure, and higher t...
The morphology on the surface of hollow glass mircospheres(HGMs) in inflating process was investigated in this work. The experimental results indicate that the main factors influencing the surface of HGM include temperature and pressure, and higher t...
2018,
30: 042002.
doi: 10.11884/HPLPB201830.170352
Abstract:
PS/AlNPs composite fibers were prepared by adding AlNPs into PS to finish the simulation study of conductive matrix materials for Z-pinch: deuterated polystyrene/nano-aluminum (DPS/AlNPs). The effects of temperature and shear rate on the rheological ...
PS/AlNPs composite fibers were prepared by adding AlNPs into PS to finish the simulation study of conductive matrix materials for Z-pinch: deuterated polystyrene/nano-aluminum (DPS/AlNPs). The effects of temperature and shear rate on the rheological ...
2018,
30: 043001.
doi: 10.11884/HPLPB201830.170333
Abstract:
One way to evaluate high power microwave's effect to computers in the building is proposed. Finite-difference Time-domain method is used to compute the electromagnetic field in the building and we can get the greatest field of every point in the buil...
One way to evaluate high power microwave's effect to computers in the building is proposed. Finite-difference Time-domain method is used to compute the electromagnetic field in the building and we can get the greatest field of every point in the buil...
2018,
30: 043002.
doi: 10.11884/HPLPB201830.170444
Abstract:
RF breakdown of the metallic high frequency structures is an important reason of power decrease and pulse shortening; it is also an important limitation of the development of high power microwave (HPM) to higher power and longer pulse. The physical p...
RF breakdown of the metallic high frequency structures is an important reason of power decrease and pulse shortening; it is also an important limitation of the development of high power microwave (HPM) to higher power and longer pulse. The physical p...
2018,
30: 043003.
doi: 10.11884/HPLPB201830.170460
Abstract:
In order to enhance the sensitivity of high power microwave detector and reduce the impact of ambient temperature, research of hot-carriers detector in liquid nitrogen was carried out. Kovar alloy was used in the BJ-100 waveguide HPM detector to enha...
In order to enhance the sensitivity of high power microwave detector and reduce the impact of ambient temperature, research of hot-carriers detector in liquid nitrogen was carried out. Kovar alloy was used in the BJ-100 waveguide HPM detector to enha...
2018,
30: 043004.
doi: 10.11884/HPLPB201830.170443
Abstract:
A linear array antenna with high power-handling capacity is designed in this article, which is feed through slots of rectangle wave-guide. A new cambered slot coupling structure is applied in the antenna, which radiation element is a small antenna, a...
A linear array antenna with high power-handling capacity is designed in this article, which is feed through slots of rectangle wave-guide. A new cambered slot coupling structure is applied in the antenna, which radiation element is a small antenna, a...
2018,
30: 043005.
doi: 10.11884/HPLPB201830.170419
Abstract:
In order to reduce the high temperature damage caused by atmospheric friction, aircraft radar antenna will generally be equipped with radome or dielectric window. In this paper, the bandgap characteristic of the electromagnetic bandgap (EBG) structur...
In order to reduce the high temperature damage caused by atmospheric friction, aircraft radar antenna will generally be equipped with radome or dielectric window. In this paper, the bandgap characteristic of the electromagnetic bandgap (EBG) structur...
2018,
30: 043101.
doi: 10.11884/HPLPB201830.170399
Abstract:
The resonance process of free electrons and external electric fields in noble metal (Ag) is described by using the polarization current difference equation. The difference equation is combined with the Maxwell equation. The finite-difference time-dom...
The resonance process of free electrons and external electric fields in noble metal (Ag) is described by using the polarization current difference equation. The difference equation is combined with the Maxwell equation. The finite-difference time-dom...
2018,
30: 043102.
doi: 10.11884/HPLPB201830.170309
Abstract:
Using the Z transform finite difference time domain method (Z-FDTD), we calculated Terahertz wave's transmission characteristics in plasma sheath, acquired the Terahertz wave power transmission and reflection coefficients with the change of the EM fr...
Using the Z transform finite difference time domain method (Z-FDTD), we calculated Terahertz wave's transmission characteristics in plasma sheath, acquired the Terahertz wave power transmission and reflection coefficients with the change of the EM fr...
2018,
30: 043201.
doi: 10.11884/HPLPB201830.170377
Abstract:
Focusing on intelligentizing characterization for battlefield electromagnetic operational environment, firstly, the relations between cognitive operations and operational art are introduced, and operations in electromagnetic domain, electromagnetic s...
Focusing on intelligentizing characterization for battlefield electromagnetic operational environment, firstly, the relations between cognitive operations and operational art are introduced, and operations in electromagnetic domain, electromagnetic s...
2018,
30: 044001.
doi: 10.11884/HPLPB201830.170248
Abstract:
Numerical calculation and analysis of proton radiation effects on CCD based on Monte Carlo method were developed by Geant4, a 3-D Monte Carlo code. The projected ranges and Bragg peaks of protons in Si and SiO2 were calculated and the results were in...
Numerical calculation and analysis of proton radiation effects on CCD based on Monte Carlo method were developed by Geant4, a 3-D Monte Carlo code. The projected ranges and Bragg peaks of protons in Si and SiO2 were calculated and the results were in...
2018,
30: 044002.
doi: 10.11884/HPLPB201830.170388
Abstract:
A new ultrafast pulse neutron detector based on MCP is introduced. The γ-ray sensitivity of the detector was investigated through simulation and experiment. A model of theoretical simulation was set up for γ-ray sensitivity calculation. In this model...
A new ultrafast pulse neutron detector based on MCP is introduced. The γ-ray sensitivity of the detector was investigated through simulation and experiment. A model of theoretical simulation was set up for γ-ray sensitivity calculation. In this model...
2018,
30: 045001.
doi: 10.11884/HPLPB201830.170417
Abstract:
Solid state linear transformer driver(LTD) is a new high frequency pulsed power generator with unique performance. This article presents an experimental research based on the basic characteristics of LTD in detail. The measurement includes three part...
Solid state linear transformer driver(LTD) is a new high frequency pulsed power generator with unique performance. This article presents an experimental research based on the basic characteristics of LTD in detail. The measurement includes three part...
2018,
30: 045002.
doi: 10.11884/HPLPB201830.170360
Abstract:
The paper presents a design of high voltage pulse generator based on high voltage switch formed by a stack of metal oxide semiconductor field-effect transistor (MOSFET). Two pulses at both ends of out metal layer in transmission line are generated by...
The paper presents a design of high voltage pulse generator based on high voltage switch formed by a stack of metal oxide semiconductor field-effect transistor (MOSFET). Two pulses at both ends of out metal layer in transmission line are generated by...
2018,
30: 045003.
doi: 10.11884/HPLPB201830.170341
Abstract:
A large LTD device capable of delivering about 50 MA pulsed current to load consists of hundreds of thousands of capacitors, switches and trigger units. To achieve high reliability of such an enormous system is quite difficult with the series system ...
A large LTD device capable of delivering about 50 MA pulsed current to load consists of hundreds of thousands of capacitors, switches and trigger units. To achieve high reliability of such an enormous system is quite difficult with the series system ...
2018,
30: 045004.
doi: 10.11884/HPLPB201830.170393
Abstract:
Bipolar pulsed power supply is one of the key equipment in magnetron sputtering system. Based on the working principle and technical characteristics of magnetron sputtering, a bipolar pulsed power supply with output voltage of 0-800 V, pulse width of...
Bipolar pulsed power supply is one of the key equipment in magnetron sputtering system. Based on the working principle and technical characteristics of magnetron sputtering, a bipolar pulsed power supply with output voltage of 0-800 V, pulse width of...
2018,
30: 045005.
doi: 10.11884/HPLPB201830.170203
Abstract:
Touches off the parallel connected pulse forming lines one by one, use silicon diodes to isolates the high voltage pulses, several single square pulses can be combined to form a MHz repetition rate multi-pulses string. The structure of the confluence...
Touches off the parallel connected pulse forming lines one by one, use silicon diodes to isolates the high voltage pulses, several single square pulses can be combined to form a MHz repetition rate multi-pulses string. The structure of the confluence...
2018,
30: 045006.
doi: 10.11884/HPLPB201830.170369
Abstract:
A self-integrating capacitive divider has been designed to measure the high voltage pulse transmitting in a cable with rising time of 1ns. The frequency characteristics have been analysed by the equivalent circuit that comprises stray parameters of c...
A self-integrating capacitive divider has been designed to measure the high voltage pulse transmitting in a cable with rising time of 1ns. The frequency characteristics have been analysed by the equivalent circuit that comprises stray parameters of c...
2018,
30: 045007.
doi: 10.11884/HPLPB201830.170347
Abstract:
The electric pulse discharge experimental platform of 20 kV/40 kJ was set up and the impact fracture test of large cement sample was carried out. In order to simulate the actual working conditions, the discharge electrode was put into an insulated sl...
The electric pulse discharge experimental platform of 20 kV/40 kJ was set up and the impact fracture test of large cement sample was carried out. In order to simulate the actual working conditions, the discharge electrode was put into an insulated sl...
2018,
30: 045101.
doi: 10.11884/HPLPB201830.170303
Abstract:
In this article, a feasible switchyard design is proposed for the Shanghai soft X-ray Free Electron Laser (SXFEL) facility. In the proposed scheme, a switchyard is used to transport the electron beam to different undulator lines. Three-dimensional st...
In this article, a feasible switchyard design is proposed for the Shanghai soft X-ray Free Electron Laser (SXFEL) facility. In the proposed scheme, a switchyard is used to transport the electron beam to different undulator lines. Three-dimensional st...
2018,
30: 045102.
doi: 10.11884/HPLPB201830.170415
Abstract:
A Kirkpatrick Baez mirror imaging system has been designed and installed to measure the beam transverse profile and emittance of SSRF storage ring. The new system could be interchangeable with the original X-pinhole system. Two orthogonal cylindrical...
A Kirkpatrick Baez mirror imaging system has been designed and installed to measure the beam transverse profile and emittance of SSRF storage ring. The new system could be interchangeable with the original X-pinhole system. Two orthogonal cylindrical...
2018,
30: 046001.
doi: 10.11884/HPLPB201830.170378
Abstract:
The high-speed vacuum ultraviolet (VUV) imaging system on the Experimental Advanced Superconducting Tokamak (EAST) is an optic system with both high temporal and spatial resolutions, and it can selectively measure VUV photons with a wavelength of 13....
The high-speed vacuum ultraviolet (VUV) imaging system on the Experimental Advanced Superconducting Tokamak (EAST) is an optic system with both high temporal and spatial resolutions, and it can selectively measure VUV photons with a wavelength of 13....
2018,
30: 046002.
doi: 10.11884/HPLPB201830.170222
Abstract:
Radiation shielding calculation of nuclear facilities has always been one of the difficulties in engineering application of Monte Carlo method for its large scale calculation and deep penetration characteristics. Two international benchmarks, publish...
Radiation shielding calculation of nuclear facilities has always been one of the difficulties in engineering application of Monte Carlo method for its large scale calculation and deep penetration characteristics. Two international benchmarks, publish...
2018,
30: 046003.
doi: 10.11884/HPLPB201830.170435
Abstract:
A sparse representation based method for nuclide spectrum feature extraction is proposed. The essence of this method is to decompose the energy spectrum on the best distinguishable sparse atom. The sparse decomposition method is used to decompose the...
A sparse representation based method for nuclide spectrum feature extraction is proposed. The essence of this method is to decompose the energy spectrum on the best distinguishable sparse atom. The sparse decomposition method is used to decompose the...
2018,
30: 049001.
doi: 10.11884/HPLPB201830.170044
Abstract:
In this paper, 343 nm femtosecond laser and as a comparison, 1030 nm femtosecond and 1064 nm nanosecond lasers were used for improving water vapor permeability (WVP) of polyurethane (PU) synthetic leather. The morphologies of micro-hole were comparat...
In this paper, 343 nm femtosecond laser and as a comparison, 1030 nm femtosecond and 1064 nm nanosecond lasers were used for improving water vapor permeability (WVP) of polyurethane (PU) synthetic leather. The morphologies of micro-hole were comparat...