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RSS2006 Vol. 18, No. 07
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2006,
18.
Abstract:
Based on compound pendulum model, a new way is put forward to measure impulse coupling coefficient using high speed photography. The system parameters of the compound pendulum are demarcated by an encoder when impulse is loaded slowly, and after the ...
Based on compound pendulum model, a new way is put forward to measure impulse coupling coefficient using high speed photography. The system parameters of the compound pendulum are demarcated by an encoder when impulse is loaded slowly, and after the ...
2006,
18.
Abstract:
Based on the vectorial Rayleigh-Sommerfeld diffraction integrals, the two expressions for the intensity of nonparaxial vectorial beams, i.e., the conventional intensity expression and the z component of the time-averaged Poynting vector, are studied ...
Based on the vectorial Rayleigh-Sommerfeld diffraction integrals, the two expressions for the intensity of nonparaxial vectorial beams, i.e., the conventional intensity expression and the z component of the time-averaged Poynting vector, are studied ...
2006,
18.
Abstract:
The temporal and spatial variation of branch points was computed by four-dimension code of laser propagating in atmosphere. The branch points originating and annihilating were emulated. The evolvement of branch points in some propagating range with t...
The temporal and spatial variation of branch points was computed by four-dimension code of laser propagating in atmosphere. The branch points originating and annihilating were emulated. The evolvement of branch points in some propagating range with t...
2006,
18.
Abstract:
It is important to evaluate the anisotropic thermal characteristics of nonlinear KTP crystal for improving the harmonic generation effect to reduce thermal stress produced by laser beam and the 3w setup is developed. The thermal conductivity of SiO2 ...
It is important to evaluate the anisotropic thermal characteristics of nonlinear KTP crystal for improving the harmonic generation effect to reduce thermal stress produced by laser beam and the 3w setup is developed. The thermal conductivity of SiO2 ...
2006,
18.
Abstract:
A design of an optical pumping source with multichannel surface discharge is introduced. The effects of the trigger voltage and risetime, and the thickness of dielectric substrate on trigger characteristic are analyzed theoretically. The electric fie...
A design of an optical pumping source with multichannel surface discharge is introduced. The effects of the trigger voltage and risetime, and the thickness of dielectric substrate on trigger characteristic are analyzed theoretically. The electric fie...
2006,
18.
Abstract:
The micro-structure surface and fluorescence of silicon slice fabricated by femtosecond laser under the assistant of low consistency sulfuric acid liquor are reported. A 10 mm×10 mm square region was fabricated from 0.5 mm thick and 26 mm in diameter...
The micro-structure surface and fluorescence of silicon slice fabricated by femtosecond laser under the assistant of low consistency sulfuric acid liquor are reported. A 10 mm×10 mm square region was fabricated from 0.5 mm thick and 26 mm in diameter...
2006,
18.
Abstract:
A kind of image processing method is introduced, which is based on the classical method about edge detection. Gray restrain is brought in，and the relations between the grid and its eight neighbours are considered in calculating the gradient. There ar...
A kind of image processing method is introduced, which is based on the classical method about edge detection. Gray restrain is brought in，and the relations between the grid and its eight neighbours are considered in calculating the gradient. There ar...
2006,
18.
Abstract:
Using a laser created plasma switch, a 1.58 ns short output pulse from a UV-preionized XeCl excimer laser is obtained. The influence of the beam energy intensity focused on the film surface for the generated plasma density is analyzed. The pulse shor...
Using a laser created plasma switch, a 1.58 ns short output pulse from a UV-preionized XeCl excimer laser is obtained. The influence of the beam energy intensity focused on the film surface for the generated plasma density is analyzed. The pulse shor...
2006,
18.
Abstract:
Design and fabrication of the X-ray supermirror used as reflective optical element in Kirkpatrick-Baez (KB) microscope were proposed. W/B4C was selected as coating materials pair. Design method and optimization of X-ray supermirrors were discussed. T...
Design and fabrication of the X-ray supermirror used as reflective optical element in Kirkpatrick-Baez (KB) microscope were proposed. W/B4C was selected as coating materials pair. Design method and optimization of X-ray supermirrors were discussed. T...
2006,
18.
Abstract:
The function between voltage and displacement of actuator and the linear superposing of the actuators for micromachined membrane deformable mirror are analyzed by means of the measured influence function of actuators. The voltage decoupling model for...
The function between voltage and displacement of actuator and the linear superposing of the actuators for micromachined membrane deformable mirror are analyzed by means of the measured influence function of actuators. The voltage decoupling model for...
2006,
18.
Abstract:
The thermodynamics of electro-optic switches with such materials as KDP, DKDP, LiNbO3 and BBO is analyzed by use of finite element methods with different laser intensity distributions such as the Gaussian, super-Gaussian under two mechanical boundari...
The thermodynamics of electro-optic switches with such materials as KDP, DKDP, LiNbO3 and BBO is analyzed by use of finite element methods with different laser intensity distributions such as the Gaussian, super-Gaussian under two mechanical boundari...
2006,
18.
Abstract:
Spin coating can be controlled by a few parameters such as the rotating speed and solid density to yield a well-defined film, which can often be used to create highly uniform coatings. Solid pyromellitic dianhydride and 4,4-oxydianiline were added to...
Spin coating can be controlled by a few parameters such as the rotating speed and solid density to yield a well-defined film, which can often be used to create highly uniform coatings. Solid pyromellitic dianhydride and 4,4-oxydianiline were added to...
2006,
18.
Abstract:
An experiment of laser-plasma interaction in hohlraum plasmas produced by laser beams with 351 nm wavelength, 2 ns pulse duration at SGII laser facility was reported in this paper. The time-resolved spectra and energy of scattered light by stimulated...
An experiment of laser-plasma interaction in hohlraum plasmas produced by laser beams with 351 nm wavelength, 2 ns pulse duration at SGII laser facility was reported in this paper. The time-resolved spectra and energy of scattered light by stimulated...
2006,
18.
Abstract:
Inner doped polystyrene capsules are required to meet the demand of the characterization of implosion interface, the elemental content, especially the doped elemental content is the key point to the performance. In this paper, the outer and inner sur...
Inner doped polystyrene capsules are required to meet the demand of the characterization of implosion interface, the elemental content, especially the doped elemental content is the key point to the performance. In this paper, the outer and inner sur...
2006,
18.
Abstract:
Using the model of transient stimulated rotational Raman scattering (SRRS) and phase perturbation, SRRS effects on high power ultraviolet laser beams with phase noise through long air paths were studied. The effects of both low and high frequency pha...
Using the model of transient stimulated rotational Raman scattering (SRRS) and phase perturbation, SRRS effects on high power ultraviolet laser beams with phase noise through long air paths were studied. The effects of both low and high frequency pha...
2006,
18.
Abstract:
High power divider with ultra-wide-band was designed based on coaxial structure. The divider input impedance was first translated to the desired impedance for matching and then the offset was made to ease the mechanical processing. High frequency sim...
High power divider with ultra-wide-band was designed based on coaxial structure. The divider input impedance was first translated to the desired impedance for matching and then the offset was made to ease the mechanical processing. High frequency sim...
2006,
18.
Abstract:
An S-band cylindrical cavity works on TM610 higher-order mode was designed on the basis of electromagnetic theory. Electromagnetic field distribution, frequency and mode spacing of TM610 mode and its adjacent modes were calculated by using HFSS, ISFE...
An S-band cylindrical cavity works on TM610 higher-order mode was designed on the basis of electromagnetic theory. Electromagnetic field distribution, frequency and mode spacing of TM610 mode and its adjacent modes were calculated by using HFSS, ISFE...
2006,
18.
Abstract:
The hydrodynamic model (HDM) is presented for the transient simulation of GaAs metal-semiconductor-field-effect-transistor(MESFET) which works at high electric fields and frequencies. The finite volume discretization scheme and operator split method ...
The hydrodynamic model (HDM) is presented for the transient simulation of GaAs metal-semiconductor-field-effect-transistor(MESFET) which works at high electric fields and frequencies. The finite volume discretization scheme and operator split method ...
2006,
18.
Abstract:
The dispersion characteristics of corrugated waveguide with an inner coaxial structure are studied and the influences on dispersion characteristics of the corrugation period, amplitude and the radius of the inner coaxial conductor are discussed. It i...
The dispersion characteristics of corrugated waveguide with an inner coaxial structure are studied and the influences on dispersion characteristics of the corrugation period, amplitude and the radius of the inner coaxial conductor are discussed. It i...
2006,
18.
Abstract:
The antenna arrays which are composed of the combined-oscillator antennas are studied. The finite-difference time-domain method is used to simulate the radiation properties of the antenna arrays. The efficiency of feeding from the coaxial line to the...
The antenna arrays which are composed of the combined-oscillator antennas are studied. The finite-difference time-domain method is used to simulate the radiation properties of the antenna arrays. The efficiency of feeding from the coaxial line to the...
2006,
18.
Abstract:
The scattering characteristics of an airplane model and the radar absorbing material covered on the model are simulated by the finite-difference time-domain (FDTD) method, and the time-domain echoes and frequency-domain radar cross section echoes of ...
The scattering characteristics of an airplane model and the radar absorbing material covered on the model are simulated by the finite-difference time-domain (FDTD) method, and the time-domain echoes and frequency-domain radar cross section echoes of ...
2006,
18.
Abstract:
The software MWS (microwave studio) which is provided by the CST company in German was introduced to simulate and calculate dispersion relation and coupling impedance. The high frequency characteristics of the inner slotted rectangular waveguide grat...
The software MWS (microwave studio) which is provided by the CST company in German was introduced to simulate and calculate dispersion relation and coupling impedance. The high frequency characteristics of the inner slotted rectangular waveguide grat...
2006,
18.
Abstract:
The analysis of the EMP coupling to buried cables is important in EMP protection. Based on the Agrawal model of transmission line and the 1-D FDTD method, this coupling problem is studied. A linear fitting method is proposed to avoid the complicated ...
The analysis of the EMP coupling to buried cables is important in EMP protection. Based on the Agrawal model of transmission line and the 1-D FDTD method, this coupling problem is studied. A linear fitting method is proposed to avoid the complicated ...
2006,
18.
Abstract:
In the paper the linear gain of coaxial-cavity cyclotron autoresonance maser amplifier is researched by the gyrokinetics. The outer-contructor radius, the electron beam radius and beam voltage's change on the linear gain is great, but the influence o...
In the paper the linear gain of coaxial-cavity cyclotron autoresonance maser amplifier is researched by the gyrokinetics. The outer-contructor radius, the electron beam radius and beam voltage's change on the linear gain is great, but the influence o...
2006,
18.
Abstract:
The energy conversion probability from the primary X-ray to the first scattered ray in object material is analytically obtained in consideration of three interaction types, including photoelectric effect, Compton scatter and pair production. The appr...
The energy conversion probability from the primary X-ray to the first scattered ray in object material is analytically obtained in consideration of three interaction types, including photoelectric effect, Compton scatter and pair production. The appr...
2006,
18.
Abstract:
In fast neutron radiography, scintillator plates are often employed as converters of fast neutron radiation. In this paper, the simulation of interaction between BC400 scintillator plates and vertical-incidence D-T neutrons is presented, and the poin...
In fast neutron radiography, scintillator plates are often employed as converters of fast neutron radiation. In this paper, the simulation of interaction between BC400 scintillator plates and vertical-incidence D-T neutrons is presented, and the poin...
2006,
18.
Abstract:
The dynamics of a one-dimensional hydrogen molecule ion (H2+) in two-color intense laser field was studied. The classical trajectories were obtained by solving numerically the classical Hamiltonian equations. Based on the classical theory and symplec...
The dynamics of a one-dimensional hydrogen molecule ion (H2+) in two-color intense laser field was studied. The classical trajectories were obtained by solving numerically the classical Hamiltonian equations. Based on the classical theory and symplec...
2006,
18.
Abstract:
At present the PIC method is often adopted in the numerical simulation of ion thruster optical system. In the PIC method, the movement of the single particles needs to be traced, so the information of particles must be saved. In the traditional parti...
At present the PIC method is often adopted in the numerical simulation of ion thruster optical system. In the PIC method, the movement of the single particles needs to be traced, so the information of particles must be saved. In the traditional parti...
2006,
18.
Abstract:
The principle of the neutron penumbra imaging was introduced, and the effect factors of the resolution of the imaging system were analyzed. The neutron penumbra imaging process was simulated with MCNP software. The coded image of one point source on ...
The principle of the neutron penumbra imaging was introduced, and the effect factors of the resolution of the imaging system were analyzed. The neutron penumbra imaging process was simulated with MCNP software. The coded image of one point source on ...
2006,
18.
Abstract:
Penumbral imaging has high sensitivity, which will be the main technical method of neutron imaging in inertial confinement fusion (ICF) experiments. Based on the requirement of neutron penumbral imaging, two-dimensional image of neutrons transport in...
Penumbral imaging has high sensitivity, which will be the main technical method of neutron imaging in inertial confinement fusion (ICF) experiments. Based on the requirement of neutron penumbral imaging, two-dimensional image of neutrons transport in...
2006,
18.
Abstract:
Ion-implantation-enhanced hardening and microstructure change of a Ti-2Al-2.5Zr alloy by 75 keV helium ion implantation with the dose of 5×1016 cm-2 or 1×1017 cm-2 is investigated. The maximum temperature during the implantation was monitored to be l...
Ion-implantation-enhanced hardening and microstructure change of a Ti-2Al-2.5Zr alloy by 75 keV helium ion implantation with the dose of 5×1016 cm-2 or 1×1017 cm-2 is investigated. The maximum temperature during the implantation was monitored to be l...
2006,
18.
Abstract:
The biggest challenge of survey and alignment is the soft groundwork and the tight positioning requirement for Shanghai Synchrotron Radiation Facility. Control network, fiducialization, pre-alignment and installation on site and smoothing are five cr...
The biggest challenge of survey and alignment is the soft groundwork and the tight positioning requirement for Shanghai Synchrotron Radiation Facility. Control network, fiducialization, pre-alignment and installation on site and smoothing are five cr...
2006,
18.
Abstract:
The restoration of magnetic cores is very important to multiple-pulses linear induced accelerator(LIA). This paper describes how to restore LIA's cores between two pulses with interval less than 1 μs by the method of overlap restoration. The restore ...
The restoration of magnetic cores is very important to multiple-pulses linear induced accelerator(LIA). This paper describes how to restore LIA's cores between two pulses with interval less than 1 μs by the method of overlap restoration. The restore ...
2006,
18.
Abstract:
Bunch-by-bunch beam current detection system is an important facility in the multibunch storage ring. In this paper, the established bunch-by-bunch beam current detection systems for the accelerator such as Cornell, SLAC and KEKB were compared and st...
Bunch-by-bunch beam current detection system is an important facility in the multibunch storage ring. In this paper, the established bunch-by-bunch beam current detection systems for the accelerator such as Cornell, SLAC and KEKB were compared and st...
2006,
18.
Abstract:
The basic principle of soft X-ray power meter is introduced in the paper and the experimental process and the result of thin plastic scintillator linear luminescence under intense soft X-ray irradiation are described. A range of flux density of energ...
The basic principle of soft X-ray power meter is introduced in the paper and the experimental process and the result of thin plastic scintillator linear luminescence under intense soft X-ray irradiation are described. A range of flux density of energ...
2006,
18.
Abstract:
The plasma opening switch(POS) is a critical element in inductive energy storage systems. In this paper the erosion model is introduced to analyze the foundational principle of the POS and diode system on Qiangguang I generator. The simulation wavefo...
The plasma opening switch(POS) is a critical element in inductive energy storage systems. In this paper the erosion model is introduced to analyze the foundational principle of the POS and diode system on Qiangguang I generator. The simulation wavefo...
2006,
18.
Abstract:
The structure of spiral Blumlein line consisting of spiral inner cylinder, spiral center cylinder and conductive outer cylinder was discussed in this paper. The formulas approximating characteristic parameters of spiral Blumlein line were obtained by...
The structure of spiral Blumlein line consisting of spiral inner cylinder, spiral center cylinder and conductive outer cylinder was discussed in this paper. The formulas approximating characteristic parameters of spiral Blumlein line were obtained by...
2006,
18.
Abstract:
It is executed to study flashover properties of polymethyl methacrylate and nylon 1010 in transformer oil in coaxial electric field by means of high voltage pulsed power supply SPG200 based on SOS switch. Flashover voltage of both solid dielectrics a...
It is executed to study flashover properties of polymethyl methacrylate and nylon 1010 in transformer oil in coaxial electric field by means of high voltage pulsed power supply SPG200 based on SOS switch. Flashover voltage of both solid dielectrics a...
