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RSS2003 Vol. 15, No. 12
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2003,
15.
Abstract:
The transmissionline theory is used to calculate the latetime HEMP induced sheath current of long lines with different length and termination, which is located near or above the ground. The results show that the induced sheath current on the line w...
The transmissionline theory is used to calculate the latetime HEMP induced sheath current of long lines with different length and termination, which is located near or above the ground. The results show that the induced sheath current on the line w...
2003,
15.
Abstract:
With particle simulation and experiment, an axial feedback vircator is studied in detail. It shows that the axial feedbacked vircator can lock the microwave operation frequency and increase the microwave power effectively. In our model, It is found t...
With particle simulation and experiment, an axial feedback vircator is studied in detail. It shows that the axial feedbacked vircator can lock the microwave operation frequency and increase the microwave power effectively. In our model, It is found t...
2003,
15.
Abstract:
This paper experimentally studies the coupling coefficient of microwaves into rectangular slots. The frequency range is from 2 to 18GHz. The experimental method is presented, and the experimental setup is established. The experimental results show th...
This paper experimentally studies the coupling coefficient of microwaves into rectangular slots. The frequency range is from 2 to 18GHz. The experimental method is presented, and the experimental setup is established. The experimental results show th...
2003,
15.
Abstract:
This paper analyzes transient radiation of transverse electronmagnetic(TEM) horn antenna arrays with FETD method. Influence of the mutual coupling between the elements on far-field radiation is analyzed. The radiation performance at lower frequencies...
This paper analyzes transient radiation of transverse electronmagnetic(TEM) horn antenna arrays with FETD method. Influence of the mutual coupling between the elements on far-field radiation is analyzed. The radiation performance at lower frequencies...
2003,
15.
Abstract:
Experimental study on coaxial vircatoris carried out on SINUS accelerator is introduced in this paper. Narrow band high power microwave is obtained and measured in several methods which ensures the accuracy. The result shows that the dominant mode of...
Experimental study on coaxial vircatoris carried out on SINUS accelerator is introduced in this paper. Narrow band high power microwave is obtained and measured in several methods which ensures the accuracy. The result shows that the dominant mode of...
2003,
15.
Abstract:
With the combination of three gain mechanism of double tapered structure, choke and impedance transition based on the two present magnetically insulated transmission line oscillater (MILO) models, a new improved type MILO has been designed through nu...
With the combination of three gain mechanism of double tapered structure, choke and impedance transition based on the two present magnetically insulated transmission line oscillater (MILO) models, a new improved type MILO has been designed through nu...
2003,
15.
Abstract:
A compact Lband magnetically insulated transmission line oscillator (MILO) is configured with the reduction of the radius and the length of the cathode, the anodecathode gap, the length and the thickness of the vanes and the period of the slowwave...
A compact Lband magnetically insulated transmission line oscillator (MILO) is configured with the reduction of the radius and the length of the cathode, the anodecathode gap, the length and the thickness of the vanes and the period of the slowwave...
2003,
15.
Abstract:
In order to improve the performance of the magnetic injection gun(MIG),the beam has the mezzo velocity ratio between 1.5 and 2.0 and transvelocity spread lower than 5%.Three kinds of the magnetic field:the sin function magnetic field,the conic funct...
In order to improve the performance of the magnetic injection gun(MIG),the beam has the mezzo velocity ratio between 1.5 and 2.0 and transvelocity spread lower than 5%.Three kinds of the magnetic field:the sin function magnetic field,the conic funct...
2003,
15.
Abstract:
This paper investigates, theoretically and experimentally, the elements which influence the gain distribution of laser medium. A high gain laser module and a high energy storage laser module have been manufactured. The experiment results approved tha...
This paper investigates, theoretically and experimentally, the elements which influence the gain distribution of laser medium. A high gain laser module and a high energy storage laser module have been manufactured. The experiment results approved tha...
2003,
15.
Abstract:
Detection for a faint astronomical object in daytime is an extremely complex issue because of low targetbackgroundcontrast and low signaltonoise ratio. Some ways to improve the detection probability is studied in this paper. The results show, spe...
Detection for a faint astronomical object in daytime is an extremely complex issue because of low targetbackgroundcontrast and low signaltonoise ratio. Some ways to improve the detection probability is studied in this paper. The results show, spe...
2003,
15.
Abstract:
For farinfrared FEL, it was found that the diffractive loss is so large that it is half of total loss due to the longer wavelength using holecoupled resonator. By changing the size of the hole, the diffractive loss can't be reduced efficiently. To ...
For farinfrared FEL, it was found that the diffractive loss is so large that it is half of total loss due to the longer wavelength using holecoupled resonator. By changing the size of the hole, the diffractive loss can't be reduced efficiently. To ...
2003,
15.
Abstract:
The temperature distribution in two kinds of solid fuel combustion have been measured instantly by BOXCARS with single laser pulse. The combustions were optimized to solve flutter and bifurcate of flame. The data are acquired at high temporal and spa...
The temperature distribution in two kinds of solid fuel combustion have been measured instantly by BOXCARS with single laser pulse. The combustions were optimized to solve flutter and bifurcate of flame. The data are acquired at high temporal and spa...
2003,
15.
Abstract:
A portable Mie lidar has been developed for both daytime and nighttime aerosol measurements. The overall structure and specifications of the portable Mie lidar are described. The primary observational aerosol extinction profiles at 532nm are also pre...
A portable Mie lidar has been developed for both daytime and nighttime aerosol measurements. The overall structure and specifications of the portable Mie lidar are described. The primary observational aerosol extinction profiles at 532nm are also pre...
2003,
15.
Abstract:
A chemical oxygen-iodine laser (COIL) with nitrogen buffer gases was designed and experimentally investigated. An output power of 2.6kW was obtained for a chlorine flowrate of 140mmol/s, corresponding to a chemical efficiency of 20.4% and a nozzle po...
A chemical oxygen-iodine laser (COIL) with nitrogen buffer gases was designed and experimentally investigated. An output power of 2.6kW was obtained for a chlorine flowrate of 140mmol/s, corresponding to a chemical efficiency of 20.4% and a nozzle po...
Evaluating refractive index structure constant and characterizing spectrum of atmospheric turbulence
2003,
15.
Abstract:
Characteristics of temperature's fluctuation measured at the maritime atmospheric surface layer is analyzed. The result is that the power spectrum of virtual temperature varies with time. Then refractive index structure constant evaluated with differ...
Characteristics of temperature's fluctuation measured at the maritime atmospheric surface layer is analyzed. The result is that the power spectrum of virtual temperature varies with time. Then refractive index structure constant evaluated with differ...
2003,
15.
Abstract:
Six types of Nd3+ laser glasses of N31 phosphate laser glasses are experimented and analyzed by JuddOfelt model. the experiment result shows that when the Nd3+ concentrations increases, the stimulatedemission cross section of the Nd3+ laser glasses...
Six types of Nd3+ laser glasses of N31 phosphate laser glasses are experimented and analyzed by JuddOfelt model. the experiment result shows that when the Nd3+ concentrations increases, the stimulatedemission cross section of the Nd3+ laser glasses...
2003,
15.
Abstract:
The oxide laser reflecting multi-layers of Ta2O5 and SiO2 were prepared by double ion-beams sputtering method. The deposition techniques, the uniformity of layer thickness, and the optical charactes were studied. A uniform distribution is achieved by...
The oxide laser reflecting multi-layers of Ta2O5 and SiO2 were prepared by double ion-beams sputtering method. The deposition techniques, the uniformity of layer thickness, and the optical charactes were studied. A uniform distribution is achieved by...
2003,
15.
Abstract:
In this paper，numerical method was used to quantitatively calculate the limited uniformintensity focused beam spreading induced by atmospheric turbulence. The effect of obscuring ratio on the beam spreading was analyzed. The results show that the ob...
In this paper，numerical method was used to quantitatively calculate the limited uniformintensity focused beam spreading induced by atmospheric turbulence. The effect of obscuring ratio on the beam spreading was analyzed. The results show that the ob...
2003,
15.
Abstract:
Based on the load current of S300 machine, in Russia, optimal combinations of radius and mass per unit length of tungsten wirearrays were obtained by a lot of optimal calculation by means of 0D model, under different drive current with peak value ...
Based on the load current of S300 machine, in Russia, optimal combinations of radius and mass per unit length of tungsten wirearrays were obtained by a lot of optimal calculation by means of 0D model, under different drive current with peak value ...
2003,
15.
Abstract:
Indirect-drive targets is a capsule encased in a cylindrical Au hohlraum with two laser entrance at opposite ends. The capsule is composed of gas fuel, glass shell and CH ablator. There is no way to measure the amount of gas fuel in the capsule after...
Indirect-drive targets is a capsule encased in a cylindrical Au hohlraum with two laser entrance at opposite ends. The capsule is composed of gas fuel, glass shell and CH ablator. There is no way to measure the amount of gas fuel in the capsule after...
2003,
15.
Abstract:
The RayleighTaylor instability caused by a density gradient is very important in the inertial confinement fusion. With the passive scalar transport model, behaviors of the interface with various initial length scales are simulated. It appears that t...
The RayleighTaylor instability caused by a density gradient is very important in the inertial confinement fusion. With the passive scalar transport model, behaviors of the interface with various initial length scales are simulated. It appears that t...
2003,
15.
Abstract:
The picosecond pulse was obtained by two-stage stimulated Brillouin scattering (SBS) compressor to compress 8ns laser pulse. The experiment used CCl4 as SBS medium. The laser pulse duratiuon was compressed to 1.5ns by the first stage compressor. In t...
The picosecond pulse was obtained by two-stage stimulated Brillouin scattering (SBS) compressor to compress 8ns laser pulse. The experiment used CCl4 as SBS medium. The laser pulse duratiuon was compressed to 1.5ns by the first stage compressor. In t...
2003,
15.
Abstract:
The distance between the electrodes of accelerator will shrink when the target chamber is pumped to vacuum. This may lead to the failure of the loaded wire-arrays since they can not keep the required state. A solution to this problem is the novel met...
The distance between the electrodes of accelerator will shrink when the target chamber is pumped to vacuum. This may lead to the failure of the loaded wire-arrays since they can not keep the required state. A solution to this problem is the novel met...
2003,
15.
Abstract:
The design and characterization of a Ti:sapphire highintensity laser system is presented. A spatial fourpass imagedelayed amplifier, which can output good quality beam, is employed in the system. The system is demonstrated in order to reach the in...
The design and characterization of a Ti:sapphire highintensity laser system is presented. A spatial fourpass imagedelayed amplifier, which can output good quality beam, is employed in the system. The system is demonstrated in order to reach the in...
2003,
15.
Abstract:
This paper introduces the digitized design of the cooling system of 2kW traveling wave accelerator which is used for killing anthrax. The parameters of cooling system was calculated and optimized by means of finite element analysis. The work was done...
This paper introduces the digitized design of the cooling system of 2kW traveling wave accelerator which is used for killing anthrax. The parameters of cooling system was calculated and optimized by means of finite element analysis. The work was done...
2003,
15.
Abstract:
This paper presents a Fokker-Planck equation to describe the distribution of the particles in bunch, which includes synchrotron radiation damping effect. The subject of longitudinal microwave instability of a single bunched beam in a circular acceler...
This paper presents a Fokker-Planck equation to describe the distribution of the particles in bunch, which includes synchrotron radiation damping effect. The subject of longitudinal microwave instability of a single bunched beam in a circular acceler...
