Email alert
RSS2006 Vol. 18, No. 08
Recommend Articles
Display Method:
2006,
18.
Abstract:
Based on dielectric physic-optics , the method for analysis of high power microwave vacuum output window is discussed, by which an X band ,1.5 GW pulse power handling ability disk type Teflon vacuum output window is analyzed. The test results are in ...
Based on dielectric physic-optics , the method for analysis of high power microwave vacuum output window is discussed, by which an X band ,1.5 GW pulse power handling ability disk type Teflon vacuum output window is analyzed. The test results are in ...
2006,
18.
Abstract:
In this paper, the Gedney-perfectly matched layer(PML) absorbing boundary condition for the finite-difference time-domain(FDTD) method is implemented and validated. And also,the Gedney-PML parameters are optimized. The results show that the numerical...
In this paper, the Gedney-perfectly matched layer(PML) absorbing boundary condition for the finite-difference time-domain(FDTD) method is implemented and validated. And also,the Gedney-PML parameters are optimized. The results show that the numerical...
2006,
18.
Abstract:
Based on the difference between theoretical analysis and soft model, the effect of the ratio of the tape width to helix pitch on the surface current distribution of the tape helix was simulated using 3-D simulation software HFSS. It is found that the...
Based on the difference between theoretical analysis and soft model, the effect of the ratio of the tape width to helix pitch on the surface current distribution of the tape helix was simulated using 3-D simulation software HFSS. It is found that the...
2006,
18.
Abstract:
A high temperature open resonator measuring system for low loss radome materials is introduced. The scalar network analyzer measures the open resonator with sweeping frequency method under the control of a computer. After getting the resonance freque...
A high temperature open resonator measuring system for low loss radome materials is introduced. The scalar network analyzer measures the open resonator with sweeping frequency method under the control of a computer. After getting the resonance freque...
2006,
18.
Abstract:
The plasma tensor dielectric permittivity and electromagnetic wave accurate expressions in the arbitrary axial magnetic field are obtained from the Maxwell’s equations and the double component plasma particle linear movement equations. It is showed t...
The plasma tensor dielectric permittivity and electromagnetic wave accurate expressions in the arbitrary axial magnetic field are obtained from the Maxwell’s equations and the double component plasma particle linear movement equations. It is showed t...
2006,
18.
Abstract:
Five kinds of radio fuzes are irradiated by UWS-EMP, and coupling pattern and working mechanism between radio fuzes and the energy of UWS-EMP are analysed based on irradiation experiments. Analysis results show that the energy of UWS-EMP couples to f...
Five kinds of radio fuzes are irradiated by UWS-EMP, and coupling pattern and working mechanism between radio fuzes and the energy of UWS-EMP are analysed based on irradiation experiments. Analysis results show that the energy of UWS-EMP couples to f...
2006,
18.
Abstract:
An S-band 45 MW pulsed klystron is developed in Institute of High Energy Physics (IHEP).This klystron is a modified version of the existing 30 MW tube, which produces 45 MW at a 320 kV beam voltage by optimizing the focusing magnetic field. Therefore...
An S-band 45 MW pulsed klystron is developed in Institute of High Energy Physics (IHEP).This klystron is a modified version of the existing 30 MW tube, which produces 45 MW at a 320 kV beam voltage by optimizing the focusing magnetic field. Therefore...
2006,
18.
Abstract:
The transmitter beam is Gaussian for real satellite-ground laser communication system. The pointing jitter and atmospheric scintillation are the main noise sources for satellite-ground laser link. The channel model of satellite-ground laser communica...
The transmitter beam is Gaussian for real satellite-ground laser communication system. The pointing jitter and atmospheric scintillation are the main noise sources for satellite-ground laser link. The channel model of satellite-ground laser communica...
2006,
18.
Abstract:
For the degradation characteristic of capacitor bank used in high power laser energy module, a reliability assessment method based on compound Poisson process is proposed and the parameters of the model are obtained by moment estimation method. The r...
For the degradation characteristic of capacitor bank used in high power laser energy module, a reliability assessment method based on compound Poisson process is proposed and the parameters of the model are obtained by moment estimation method. The r...
2006,
18.
Abstract:
Based on the temporal covariance of logarithmic amplitude, analytical expression was obtained for aperture receiving power spectrum of atmospheric scintillation of satellite-to-ground downlink. The effect of the receiving aperture and outer scale of ...
Based on the temporal covariance of logarithmic amplitude, analytical expression was obtained for aperture receiving power spectrum of atmospheric scintillation of satellite-to-ground downlink. The effect of the receiving aperture and outer scale of ...
2006,
18.
Abstract:
Taking HF lasing as an example, line selecting performance of a single tube discharge driven subsonic CW HF/DF chemical laser was tested with grating dispersive cavity under the 1st order oscillating 1st coupling mode. The difference between the resu...
Taking HF lasing as an example, line selecting performance of a single tube discharge driven subsonic CW HF/DF chemical laser was tested with grating dispersive cavity under the 1st order oscillating 1st coupling mode. The difference between the resu...
2006,
18.
Abstract:
This paper reported a ZGP (zinc germanium phosphide) optical parametric oscillator (OPO) pumped by high-repetition rate 2 mm OPO. Type Ⅰ ZGP crystal (ZnGeP2) with the size of 5.5 mm×6 mm×18 mm was cut at phase matching angles of 55° and 0°. Under 4.0...
This paper reported a ZGP (zinc germanium phosphide) optical parametric oscillator (OPO) pumped by high-repetition rate 2 mm OPO. Type Ⅰ ZGP crystal (ZnGeP2) with the size of 5.5 mm×6 mm×18 mm was cut at phase matching angles of 55° and 0°. Under 4.0...
2006,
18.
Abstract:
The construction process and characteristics of the deformable mirror eigen mode are presented. The eigen modes of 37-channel micro-machined membrane deformable mirror from OKO Ltd are listed and fitted with the former 65 order Zernike polynomial. An...
The construction process and characteristics of the deformable mirror eigen mode are presented. The eigen modes of 37-channel micro-machined membrane deformable mirror from OKO Ltd are listed and fitted with the former 65 order Zernike polynomial. An...
2006,
18.
Abstract:
Based on the extended Huygens-Fresnel principle, the expression for the polarization state of partially coherent electromagnetic beams in turbulent atmosphere is derived. This paper deals with the influence of turbulence on the polarization of the El...
Based on the extended Huygens-Fresnel principle, the expression for the polarization state of partially coherent electromagnetic beams in turbulent atmosphere is derived. This paper deals with the influence of turbulence on the polarization of the El...
2006,
18.
Abstract:
The 3D elastic mechanics and finite-element structure analysis priniple were provided. The mechanics characteristics of the three-faced aluminous rotating mirror were analyzed, and the finite-element model was established. The stress distributions of...
The 3D elastic mechanics and finite-element structure analysis priniple were provided. The mechanics characteristics of the three-faced aluminous rotating mirror were analyzed, and the finite-element model was established. The stress distributions of...
2006,
18.
Abstract:
The propagation regularity of the laser in the 1D resonance media was studied by solving the Maxwell-Bloch equations with definite difference method. It was found that the 2p pulse would not propagate as a soliton but split if the dipole moment or th...
The propagation regularity of the laser in the 1D resonance media was studied by solving the Maxwell-Bloch equations with definite difference method. It was found that the 2p pulse would not propagate as a soliton but split if the dipole moment or th...
2006,
18.
Abstract:
Detecting and calculating accuracy of centroid of focal spot affects the detecting accuracy of Hartmann-Shack wavefront sensor. Noise will reduce the detecting accuracy when the whole sub-aperture is used as the detecting window. The influence of win...
Detecting and calculating accuracy of centroid of focal spot affects the detecting accuracy of Hartmann-Shack wavefront sensor. Noise will reduce the detecting accuracy when the whole sub-aperture is used as the detecting window. The influence of win...
2006,
18.
Abstract:
By using one type Ⅰ doubling and two type Ⅱ tripling KDP crystals in quadrature, the influence of the bandwidth of the fundamental field and the detuning angles of the mixers on the power spectrum of the third harmonic field has been discussed. The f...
By using one type Ⅰ doubling and two type Ⅱ tripling KDP crystals in quadrature, the influence of the bandwidth of the fundamental field and the detuning angles of the mixers on the power spectrum of the third harmonic field has been discussed. The f...
2006,
18.
Abstract:
The preparation of the special adhesive for hollow glass microsphere sealing in the inertial confinement fusion(ICF) experiment was introduced. The influences of the toughener and coupling agent on the morphology, thermal properties and shear strengt...
The preparation of the special adhesive for hollow glass microsphere sealing in the inertial confinement fusion(ICF) experiment was introduced. The influences of the toughener and coupling agent on the morphology, thermal properties and shear strengt...
2006,
18.
Abstract:
For the laser plasma diagnostic system in the inertial confinement fusion(ICF) drivers, the logarithmic axicon was adopted and improved by fifth-order super-Guassian edge smoothing, centre apodization and choosing suitable device parameters. The simu...
For the laser plasma diagnostic system in the inertial confinement fusion(ICF) drivers, the logarithmic axicon was adopted and improved by fifth-order super-Guassian edge smoothing, centre apodization and choosing suitable device parameters. The simu...
2006,
18.
Abstract:
The basic condition required for achieving central ignition is producing a hot spot with 10 keV temperature and 0.3 g/cm2 surface density. Growth of hydrodynamic instability during deceleration phase will destroy the symmetric-drive , reduce the volu...
The basic condition required for achieving central ignition is producing a hot spot with 10 keV temperature and 0.3 g/cm2 surface density. Growth of hydrodynamic instability during deceleration phase will destroy the symmetric-drive , reduce the volu...
2006,
18.
Abstract:
In this paper, nano-porous silica films are prepared via Sol-Gel process with base, acid and base/acid two-step catalysis. TEM and Particle Size Analyzer are used to characterize the properties of the microstructure and particles size distribution of...
In this paper, nano-porous silica films are prepared via Sol-Gel process with base, acid and base/acid two-step catalysis. TEM and Particle Size Analyzer are used to characterize the properties of the microstructure and particles size distribution of...
2006,
18.
Abstract:
The silica alco-gel was obtained by the 2-step acid-base catalyzed TEOS. Aging in a solution of methyltrimethoxylsilane and trimethylating Si-OH groups increased the strength and stiffness of the wet gel by hexamethyldisilazane (HMDSA) on the surface...
The silica alco-gel was obtained by the 2-step acid-base catalyzed TEOS. Aging in a solution of methyltrimethoxylsilane and trimethylating Si-OH groups increased the strength and stiffness of the wet gel by hexamethyldisilazane (HMDSA) on the surface...
2006,
18.
Abstract:
The electronic structures of defect of Na substituting for K in KH2PO4 (KDP) crystals are studied by first-principles total-energy calculations based on density-functional theory. The calculated formation energy for this defect is about 0.46 eV. No d...
The electronic structures of defect of Na substituting for K in KH2PO4 (KDP) crystals are studied by first-principles total-energy calculations based on density-functional theory. The calculated formation energy for this defect is about 0.46 eV. No d...
2006,
18.
Abstract:
The explosive magnetic generator of frequency is a simple and small device for generating and radiating electromagnetic pulse. To optimize its performance, the mathematical model is researched first, and then the Bessel function which meets the outpu...
The explosive magnetic generator of frequency is a simple and small device for generating and radiating electromagnetic pulse. To optimize its performance, the mathematical model is researched first, and then the Bessel function which meets the outpu...
2006,
18.
Abstract:
An optical imaging diagnostic system was developed for “QiangGuang-I” wire array Z-pinch experiments. The system, with a gate of 5 ns and spatial resolution of 6.5 lp/mm, is sensitive to the wavelength of 365~750 nm. The system can be used to study t...
An optical imaging diagnostic system was developed for “QiangGuang-I” wire array Z-pinch experiments. The system, with a gate of 5 ns and spatial resolution of 6.5 lp/mm, is sensitive to the wavelength of 365~750 nm. The system can be used to study t...
2006,
18.
Abstract:
The technique of using multiresolution-time-domain (MRTD) method to solve the issue of electromagnetic pulse (EMP) coupling to thin wires was researched. Traditional Holland method was applied to MRTD, and a scheme in MRTD was produced to calculate t...
The technique of using multiresolution-time-domain (MRTD) method to solve the issue of electromagnetic pulse (EMP) coupling to thin wires was researched. Traditional Holland method was applied to MRTD, and a scheme in MRTD was produced to calculate t...
2006,
18.
Abstract:
A multi-pulse generator based on inductive storage and electro-explosive opening switch is introduced in this paper. The generator consists of a capacitor bank used as the primary energy source and an electro-explosive opening switch which is made up...
A multi-pulse generator based on inductive storage and electro-explosive opening switch is introduced in this paper. The generator consists of a capacitor bank used as the primary energy source and an electro-explosive opening switch which is made up...
2006,
18.
Abstract:
X-ray radiation produced by a small gas puff Z-pinch device in Tsinghua University was detected. This device was powered by a 16 mF capacitor bank charged to 230 kV, corresponding to a storage energy of 4.3 kJ, the discharge current reached its peak ...
X-ray radiation produced by a small gas puff Z-pinch device in Tsinghua University was detected. This device was powered by a 16 mF capacitor bank charged to 230 kV, corresponding to a storage energy of 4.3 kJ, the discharge current reached its peak ...
2006,
18.
Abstract:
In this paper, the quasi-relativistic Hartree-Fock-Relativistic atomic structure code and the unresolved transition array model were used to calculate the dielectronic recombination rate and the electron-ion collisional excitation rate of two high-Z ...
In this paper, the quasi-relativistic Hartree-Fock-Relativistic atomic structure code and the unresolved transition array model were used to calculate the dielectronic recombination rate and the electron-ion collisional excitation rate of two high-Z ...
2006,
18.
Abstract:
Based on the Dirac-Slater self-consistent-field method, the photoionization cross sections of electrons in 1s, 2s and 2p subshells of carbon atom with different degree of ionization (CI, CII, CIII, CIV, CV, CVI) are calculated from ionization thresho...
Based on the Dirac-Slater self-consistent-field method, the photoionization cross sections of electrons in 1s, 2s and 2p subshells of carbon atom with different degree of ionization (CI, CII, CIII, CIV, CV, CVI) are calculated from ionization thresho...
2006,
18.
Abstract:
The synthesis and characterization of mercaptosuccinic acid monolayer protected water-soluble gold clusters (Au MPC) are described. TEM photograph displays that when Au/S mole ratio is 1∶3, size of Au core of MPC is about 2 nm. Results of the FTIR sp...
The synthesis and characterization of mercaptosuccinic acid monolayer protected water-soluble gold clusters (Au MPC) are described. TEM photograph displays that when Au/S mole ratio is 1∶3, size of Au core of MPC is about 2 nm. Results of the FTIR sp...
2006,
18.
Abstract:
The waveguide is used in the whole optical cavity of CAEP far-infrared FEL. The influence of waveguide on the net gain of the optical cavity is estimated by calculating the transverse coupling factor between the optical beam and electron beam. The in...
The waveguide is used in the whole optical cavity of CAEP far-infrared FEL. The influence of waveguide on the net gain of the optical cavity is estimated by calculating the transverse coupling factor between the optical beam and electron beam. The in...
2006,
18.
Abstract:
To improve the beam performance of the two-bunch acceleration (two macro beam pulses in one macro microwave pulse), a new sub-harmonic bunching system has been designed and optimized for BEPCII Linac. Due to the difference between the new bunching sy...
To improve the beam performance of the two-bunch acceleration (two macro beam pulses in one macro microwave pulse), a new sub-harmonic bunching system has been designed and optimized for BEPCII Linac. Due to the difference between the new bunching sy...
2006,
18.
Abstract:
The electromagnetic field of beam energy spread monitor (BESM) with multi-stripline electrodes for BEPCII is calculated by Superfish code. The electromagnetic field computations with simulation beam are used to analyze the relations between the elect...
The electromagnetic field of beam energy spread monitor (BESM) with multi-stripline electrodes for BEPCII is calculated by Superfish code. The electromagnetic field computations with simulation beam are used to analyze the relations between the elect...
2006,
18.
Abstract:
A series of experiments studying Mo wire X-pinch were carried out on “Yang” facility. This facility generated a peak current of about 520 kA with 80 ns rise time. The X-pinch load was composed of two identical Mo wires with a diameter of 10 μm, 15 μm...
A series of experiments studying Mo wire X-pinch were carried out on “Yang” facility. This facility generated a peak current of about 520 kA with 80 ns rise time. The X-pinch load was composed of two identical Mo wires with a diameter of 10 μm, 15 μm...
2006,
18.
Abstract:
A low prepulse high power density water dielectric self-breaking switch has been investigated on FlashⅡgenerator recently. The switch contains two or four gaps, a prepulse shield and supporting hardware. The configuration and equivalent circuit model...
A low prepulse high power density water dielectric self-breaking switch has been investigated on FlashⅡgenerator recently. The switch contains two or four gaps, a prepulse shield and supporting hardware. The configuration and equivalent circuit model...
2006,
18.
Abstract:
The phase-space measurement system of Hefei light source was introduced. Three phase-space measurement and calculation methods of the system, two-position-once, one-position-twice and one-position-once were studied and compared. The compared simulati...
The phase-space measurement system of Hefei light source was introduced. Three phase-space measurement and calculation methods of the system, two-position-once, one-position-twice and one-position-once were studied and compared. The compared simulati...
2006,
18.
Abstract:
Experimental researches on self-breakdown characteristics of three-electrodes repetitive gas switch, including relationship between the self-breakdwon characteristics and gas pressure, gas flow speed and electrode shape, were performed on the acceler...
Experimental researches on self-breakdown characteristics of three-electrodes repetitive gas switch, including relationship between the self-breakdwon characteristics and gas pressure, gas flow speed and electrode shape, were performed on the acceler...
