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RSS2005 Vol. 17, No. 04
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2005,
17.
Abstract:
In order to perform the near-to-far-field extrapolation for one-dimensional periodic structure, the Floquet-mode method is first discussed. The complex amplitudes of each Floquet’s mode are determined based on the Fourier series expansion for the nea...
In order to perform the near-to-far-field extrapolation for one-dimensional periodic structure, the Floquet-mode method is first discussed. The complex amplitudes of each Floquet’s mode are determined based on the Fourier series expansion for the nea...
2005,
17.
Abstract:
A novel phase shifter for high power microwave is described and analyzed. The coaxial TEM mode is converted to TE11 fan-shaped waveguide mode by inserting fins into the coaxial waveguide.The phase shift changes with varying the length of the fins. A ...
A novel phase shifter for high power microwave is described and analyzed. The coaxial TEM mode is converted to TE11 fan-shaped waveguide mode by inserting fins into the coaxial waveguide.The phase shift changes with varying the length of the fins. A ...
2005,
17.
Abstract:
There exist two transmission line coupling models, Agrawal model and Taylor model, which can be used for the calculation of the aboveground cable effects excited by incident HEMP plane wave. In views of the lossy ground, we summarized and then discus...
There exist two transmission line coupling models, Agrawal model and Taylor model, which can be used for the calculation of the aboveground cable effects excited by incident HEMP plane wave. In views of the lossy ground, we summarized and then discus...
2005,
17.
Abstract:
The coaxial impedance convertor plays a very important role in the field of high power microwave. The impedance of a coaxial line can be converted by gradually changing the diameter of the inner conductor of the coaxial line, and some functions such ...
The coaxial impedance convertor plays a very important role in the field of high power microwave. The impedance of a coaxial line can be converted by gradually changing the diameter of the inner conductor of the coaxial line, and some functions such ...
2005,
17.
Abstract:
This paper discusses the combined-oscillator (CO) antenna which is composed of an electric monopole and a magnetic oscillator. The finite-difference time-domain method is applied to simulate the radiation properties of the CO antenna. The efficiency ...
This paper discusses the combined-oscillator (CO) antenna which is composed of an electric monopole and a magnetic oscillator. The finite-difference time-domain method is applied to simulate the radiation properties of the CO antenna. The efficiency ...
2005,
17.
Abstract:
The bent TM01-TE11 mode converter is analyzed by theoretical calculation and numerical simulation, keeping the axes of the output port and that of the input in parallel. The mode converter is minimized by decreasing the inner radius of waveguide. The...
The bent TM01-TE11 mode converter is analyzed by theoretical calculation and numerical simulation, keeping the axes of the output port and that of the input in parallel. The mode converter is minimized by decreasing the inner radius of waveguide. The...
2005,
17.
Abstract:
The paper presents the instantaneous response of stored energy, reflected power in the input coupler and output power in the output coupler due to the interactions of the power source and the “switch” under generating high power microwave pulse compr...
The paper presents the instantaneous response of stored energy, reflected power in the input coupler and output power in the output coupler due to the interactions of the power source and the “switch” under generating high power microwave pulse compr...
2005,
17.
Abstract:
A travelling wave resonant-ring was constructed for RF window high power test of NSRL 200 MeV Linac. The principle of the resonant-ring was described. A power gain of 4.5 and a peak power of 60 MW were achieved in the ring. The power test method and ...
A travelling wave resonant-ring was constructed for RF window high power test of NSRL 200 MeV Linac. The principle of the resonant-ring was described. A power gain of 4.5 and a peak power of 60 MW were achieved in the ring. The power test method and ...
2005,
17.
Abstract:
One of the important building blocks on Qiangguang- I accelerator is the short-pulse high dose rate gamma-ray source, which is mainly used to generate short pulse intense bremsstrahlung. In this paper, the process of generating high dose rate gamma-r...
One of the important building blocks on Qiangguang- I accelerator is the short-pulse high dose rate gamma-ray source, which is mainly used to generate short pulse intense bremsstrahlung. In this paper, the process of generating high dose rate gamma-r...
2005,
17.
Abstract:
In the paper the fundamental and solution approach of TLCODDE, which was used to simulate transmission line, have been investigated. The interface voltage expressions for several typical loads driven by a transmission line, necessary for TLCODE, have...
In the paper the fundamental and solution approach of TLCODDE, which was used to simulate transmission line, have been investigated. The interface voltage expressions for several typical loads driven by a transmission line, necessary for TLCODE, have...
2005,
17.
Abstract:
Fast photography is used to investigate the back-ejecta of tantalum target material after interaction with high intensity current pulse electron beam. Velocity of back jecta of tantalum target material is presented. The electron beam energy depositio...
Fast photography is used to investigate the back-ejecta of tantalum target material after interaction with high intensity current pulse electron beam. Velocity of back jecta of tantalum target material is presented. The electron beam energy depositio...
2005,
17.
Abstract:
When vacuum electron diode is repetitively operated, it presents some peculiar characteristics. Because of its small screening radius and short delay time, graphite is chosen as the cathode material. In experiments, the following results were attaine...
When vacuum electron diode is repetitively operated, it presents some peculiar characteristics. Because of its small screening radius and short delay time, graphite is chosen as the cathode material. In experiments, the following results were attaine...
2005,
17.
Abstract:
In order to obtain experimental parameters of gas breakdown under repetitive nanosecond-pulses, this paper introduces measurement and influencing factors of incident voltage and discharge current, and describes repetitively stressing time which is pe...
In order to obtain experimental parameters of gas breakdown under repetitive nanosecond-pulses, this paper introduces measurement and influencing factors of incident voltage and discharge current, and describes repetitively stressing time which is pe...
2005,
17.
Abstract:
A new kind of pulse electron gun controller for 200 MeV LINAC at National Synchrotron Radiation Laboratory was introduced in this paper, including the working principle of the pulse electron gun, the applications of I2C serial bus and embedded microc...
A new kind of pulse electron gun controller for 200 MeV LINAC at National Synchrotron Radiation Laboratory was introduced in this paper, including the working principle of the pulse electron gun, the applications of I2C serial bus and embedded microc...
2005,
17.
Abstract:
During the commission of electron storage ring of HLS(phase Ⅱ reconstruction), it was found that there was coupled-bunch instability both in injection and operation. The coupled-bunch instability seriously limited the injection beam intensity, and af...
During the commission of electron storage ring of HLS(phase Ⅱ reconstruction), it was found that there was coupled-bunch instability both in injection and operation. The coupled-bunch instability seriously limited the injection beam intensity, and af...
2005,
17.
Abstract:
The response matrix relates beam motion at the BPM locations to changes in corrector magnet strengths. A method for extracting the beta-function and phase of the beam position monitors and the corrector magnets from the measured response matrix based...
The response matrix relates beam motion at the BPM locations to changes in corrector magnet strengths. A method for extracting the beta-function and phase of the beam position monitors and the corrector magnets from the measured response matrix based...
2005,
17.
Abstract:
When trying to explain the latch-up window phenomena in CMOS devices induced by radiation, the so called “three-path” latch-up window model is provided. The “three-path” latch-up window model is simply based on the analysis of CMOS device latch-up ci...
When trying to explain the latch-up window phenomena in CMOS devices induced by radiation, the so called “three-path” latch-up window model is provided. The “three-path” latch-up window model is simply based on the analysis of CMOS device latch-up ci...
2005,
17.
Abstract:
The time domain electric field integral equation (EFIE) is an important method in describing the radiation and scattering of electromagnetic. The method can be implemented with great efficiency in numerically simulation for the reason of mesh divisio...
The time domain electric field integral equation (EFIE) is an important method in describing the radiation and scattering of electromagnetic. The method can be implemented with great efficiency in numerically simulation for the reason of mesh divisio...
2005,
17.
Abstract:
Three-dimensional CFD technology was used to simulate the flow field of COIL mixing nozzle. Concentration-driven as well as pressure-driven diffusion terms were considered in the diffusion equations. The 10 species and 21 reactions chemical model was...
Three-dimensional CFD technology was used to simulate the flow field of COIL mixing nozzle. Concentration-driven as well as pressure-driven diffusion terms were considered in the diffusion equations. The 10 species and 21 reactions chemical model was...
2005,
17.
Abstract:
Random fluctuation of turbulence brings random fluctuation of refractive index and makes atmosphere become a random fluctuation medium, which destroys the coherence of light-wave. Research of atmospheric turbulence is actually investigation of atmosp...
Random fluctuation of turbulence brings random fluctuation of refractive index and makes atmosphere become a random fluctuation medium, which destroys the coherence of light-wave. Research of atmospheric turbulence is actually investigation of atmosp...
2005,
17.
Abstract:
Based on precise measurements of the surface-shape of cavity mirrors, a cavity model has been achieved by optical simulation software ZEMAX for a folded virtually-confocal unstable resonator employed in COIL. The influences of the surface-shape error...
Based on precise measurements of the surface-shape of cavity mirrors, a cavity model has been achieved by optical simulation software ZEMAX for a folded virtually-confocal unstable resonator employed in COIL. The influences of the surface-shape error...
2005,
17.
Abstract:
By means of combining a heat conduction equation for electron with molecular dynamics method, the dynamics of melting and ablation processes at Ni surfaces under femtosecond laser irradiation is studied. The temperature distribution of lattice and th...
By means of combining a heat conduction equation for electron with molecular dynamics method, the dynamics of melting and ablation processes at Ni surfaces under femtosecond laser irradiation is studied. The temperature distribution of lattice and th...
2005,
17.
Abstract:
The output modes of sub-picosecond ultrashort pulse distributed feedback dye laser which is used as an oscillator for a high brightness KrF laser system were analyzed with coupling wave theory. The analysis shows that for a practical distributed feed...
The output modes of sub-picosecond ultrashort pulse distributed feedback dye laser which is used as an oscillator for a high brightness KrF laser system were analyzed with coupling wave theory. The analysis shows that for a practical distributed feed...
2005,
17.
Abstract:
The effects of annealing on electron-beam evaporated single Al2O3 layers were investigated. The films were annealed in air for 1.5 hours at different temperatures from 250～400 ℃. The transmittance spectra were measured in the wavelength range of 190~...
The effects of annealing on electron-beam evaporated single Al2O3 layers were investigated. The films were annealed in air for 1.5 hours at different temperatures from 250～400 ℃. The transmittance spectra were measured in the wavelength range of 190~...
2005,
17.
Abstract:
The failure of charge coupled devices (CCD ) irradiated by 800nm fs laser with pulse duration of 60 fs was studied.The result shows that the failure threshold of CCD irradiated by fs laser is 4.22×10－3 J/cm2. and it is 2～3 order lower than the failar...
The failure of charge coupled devices (CCD ) irradiated by 800nm fs laser with pulse duration of 60 fs was studied.The result shows that the failure threshold of CCD irradiated by fs laser is 4.22×10－3 J/cm2. and it is 2～3 order lower than the failar...
2005,
17.
Abstract:
The optical and laser properties of several laser glasses have been discussed. According to the properties of the gain and the B integral in the high power laser amplifier chain,an optimal configuration is advanced that high gain glasses and low n2 g...
The optical and laser properties of several laser glasses have been discussed. According to the properties of the gain and the B integral in the high power laser amplifier chain,an optimal configuration is advanced that high gain glasses and low n2 g...
2005,
17.
Abstract:
Based on the change of misalignment sensitivity with the length of cavity, a kind of ring-down cavity is put forward, which is stable resonator, and its cavity length is 0.73 times as that of confocal cavity. According to propagation equation of Gaus...
Based on the change of misalignment sensitivity with the length of cavity, a kind of ring-down cavity is put forward, which is stable resonator, and its cavity length is 0.73 times as that of confocal cavity. According to propagation equation of Gaus...
2005,
17.
Abstract:
The laser-induced damage threshold (LIDT) is regulated by the ISO11254 standard based on the damage frequency method, and its uncertainty information is useful for the researchers. Analysis shows that the origins of the uncertainty, which valves can ...
The laser-induced damage threshold (LIDT) is regulated by the ISO11254 standard based on the damage frequency method, and its uncertainty information is useful for the researchers. Analysis shows that the origins of the uncertainty, which valves can ...
2005,
17.
Abstract:
A new type of all-fiber velocity interferometer(AFVISAR),working at the 532 nm, has been developed which has the advantages of both the traditional velocity interferometer(VISAR) and the AFVISAR.The interferometer consists of only fibers or fiber cou...
A new type of all-fiber velocity interferometer(AFVISAR),working at the 532 nm, has been developed which has the advantages of both the traditional velocity interferometer(VISAR) and the AFVISAR.The interferometer consists of only fibers or fiber cou...
2005,
17.
Abstract:
Temperature distribution in Yb-doped double-clad high power fiber lasers (DCFL) was analyzed by the thermal conductive equations, and pump way and pump absorption coefficients which may influence cavity temperature were discussed based on this analyt...
Temperature distribution in Yb-doped double-clad high power fiber lasers (DCFL) was analyzed by the thermal conductive equations, and pump way and pump absorption coefficients which may influence cavity temperature were discussed based on this analyt...
2005,
17.
Abstract:
Based on the wave shape of Marx device at National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, the influence of discharge parameters upon the temporal evolvement of capillary discharge produced plasmas conditions and t...
Based on the wave shape of Marx device at National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, the influence of discharge parameters upon the temporal evolvement of capillary discharge produced plasmas conditions and t...
2005,
17.
Abstract:
The objective of this work is to investigate the influence of furnace atmosphere properties on the kinetic behaviors of liquid hollow glass microsphere in the fabrication of target by sol-gel technology. The effects of the composition, temperature an...
The objective of this work is to investigate the influence of furnace atmosphere properties on the kinetic behaviors of liquid hollow glass microsphere in the fabrication of target by sol-gel technology. The effects of the composition, temperature an...
2005,
17.
Abstract:
Using linear absorption spectra and second harmonic generation(SHG) technique, the influence of temperature on optical properties and Langmuir-Blodgett(LB) films structure of rare earth sandwich double naphthalocyanines were investigated.The absorpti...
Using linear absorption spectra and second harmonic generation(SHG) technique, the influence of temperature on optical properties and Langmuir-Blodgett(LB) films structure of rare earth sandwich double naphthalocyanines were investigated.The absorpti...
2005,
17.
Abstract:
The mechanics of the mirror was analyzed using the finite element package ANSYS to show the effect of the structural parameters and actuated voltages on the deflection of the actuator. A lumped parameter model was developed for predicting the transie...
The mechanics of the mirror was analyzed using the finite element package ANSYS to show the effect of the structural parameters and actuated voltages on the deflection of the actuator. A lumped parameter model was developed for predicting the transie...
2005,
17.
Abstract:
Based on the Marangoni interface effect,the theory and test of the removal function of numerically controlled chemical polishing are studied.Wet etching of optics surface is adopted in large optical components manufacture.Before the optical component...
Based on the Marangoni interface effect,the theory and test of the removal function of numerically controlled chemical polishing are studied.Wet etching of optics surface is adopted in large optical components manufacture.Before the optical component...
