Email alert
RSS2008 Vol. 20, No. 10
Recommend Articles
Display Method:
2008,
20.
Abstract:
A single-module two-stage ejector test facility was established to investigate the supersonic ejector performance, and hot gases with various were used as parameters first-stage and second-stage driving fluids. The investigation indicates that there ...
A single-module two-stage ejector test facility was established to investigate the supersonic ejector performance, and hot gases with various were used as parameters first-stage and second-stage driving fluids. The investigation indicates that there ...
2008,
20.
Abstract:
There are strong interactions or couples among multi-fields in the mixing nozzle of the COIL, such as gas-dynamics, chemical reaction kinetics and optics. Three-dimensional CFD technology was applied on the RADICL model by solving the laminar Navier-...
There are strong interactions or couples among multi-fields in the mixing nozzle of the COIL, such as gas-dynamics, chemical reaction kinetics and optics. Three-dimensional CFD technology was applied on the RADICL model by solving the laminar Navier-...
2008,
20.
Abstract:
The response surface model of Hypersonic Low Temperature(HYLTE) nozzle was built, and the design matrix of sample data points, used in this model, was derived by orthogonal design of experiment(DOE) procedure. The sample data were obtained by the noz...
The response surface model of Hypersonic Low Temperature(HYLTE) nozzle was built, and the design matrix of sample data points, used in this model, was derived by orthogonal design of experiment(DOE) procedure. The sample data were obtained by the noz...
2008,
20.
Abstract:
A new atmospheric remote sensing detection system, White-light Lidar, was designed and a detection method based on radar mode of long-path differential absorption spectra was developed. The main structure of the White-light Lidar and time-resolved sp...
A new atmospheric remote sensing detection system, White-light Lidar, was designed and a detection method based on radar mode of long-path differential absorption spectra was developed. The main structure of the White-light Lidar and time-resolved sp...
2008,
20.
Abstract:
From the formation mechanism of the wind profiler radar’s echoes, this paper studied a retrieval method of the turbulent kinetic energy dissipation rate from spectral width measured by a wind profiler. Two key steps of the method are extracting spect...
From the formation mechanism of the wind profiler radar’s echoes, this paper studied a retrieval method of the turbulent kinetic energy dissipation rate from spectral width measured by a wind profiler. Two key steps of the method are extracting spect...
2008,
20.
Abstract:
The temperature distributions and thermal distortions of Si mirror nonuniformly heated by high energy laser beam are calculated with finite element methods, and the distorted mirror surface is fitted with 65 orders Zernike polynomials for the conven...
The temperature distributions and thermal distortions of Si mirror nonuniformly heated by high energy laser beam are calculated with finite element methods, and the distorted mirror surface is fitted with 65 orders Zernike polynomials for the conven...
2008,
20.
Abstract:
In order to validate the cat eye effect and its application feasibility of ordinary optical lens, an experiment was operated by 532 nm laser irradiating on an ordinary optical zoom lens whose focus ranged from 12 mm to 72 mm. The absolute reflectivit...
In order to validate the cat eye effect and its application feasibility of ordinary optical lens, an experiment was operated by 532 nm laser irradiating on an ordinary optical zoom lens whose focus ranged from 12 mm to 72 mm. The absolute reflectivit...
2008,
20.
Abstract:
A DL-pumped Nd:YAG all-solid-state sum-frequency laser is presented. Efficient sum-frequency mixing 1 064 nm and 1 319 nm in a 6 mm×6 mm×12 mm KTP crystal is obtained by extra-cavity sum-frequency. Type Ⅱ critical phase-match(CPM) is realized by cont...
A DL-pumped Nd:YAG all-solid-state sum-frequency laser is presented. Efficient sum-frequency mixing 1 064 nm and 1 319 nm in a 6 mm×6 mm×12 mm KTP crystal is obtained by extra-cavity sum-frequency. Type Ⅱ critical phase-match(CPM) is realized by cont...
2008,
20.
Abstract:
A novel approach to the design of the polarizing beam splitters based on the subwavelength dielectric grating is presented. Using rigorous coupled-wave theory and matrix LU decomposition, the Rayleigh anomaly and the effects of the grave depth, the d...
A novel approach to the design of the polarizing beam splitters based on the subwavelength dielectric grating is presented. Using rigorous coupled-wave theory and matrix LU decomposition, the Rayleigh anomaly and the effects of the grave depth, the d...
2008,
20.
Abstract:
Nonlinearity of the sweep circuit of streak camera distorts the time and intensity information of the streak image. In order to make the streak image closer to the actual object and to improve the measuring precision, this paper presents a correction...
Nonlinearity of the sweep circuit of streak camera distorts the time and intensity information of the streak image. In order to make the streak image closer to the actual object and to improve the measuring precision, this paper presents a correction...
2008,
20.
Abstract:
To study the starting characteristic of directly drained CW DF/HF chemical laser(DDCL), a double-nozzle small-scale device of DDCL gas channel was set up, and a series of experiments were conducted with different stagnation pressure of secondary flow...
To study the starting characteristic of directly drained CW DF/HF chemical laser(DDCL), a double-nozzle small-scale device of DDCL gas channel was set up, and a series of experiments were conducted with different stagnation pressure of secondary flow...
2008,
20.
Abstract:
The character and alignment demand of laser optical path were analyzed, and a method of fast adjustment and alignment of optical path by using visible light source and glass grid was given. The adjustment process and the problem in operating wereexam...
The character and alignment demand of laser optical path were analyzed, and a method of fast adjustment and alignment of optical path by using visible light source and glass grid was given. The adjustment process and the problem in operating wereexam...
2008,
20.
Abstract:
Ta2O5-TiO2 composite aerogels were successfully prepared from titanium n-butoxide and tantalum ethylate dissolved in ethanol by sol-gel process and supercritical drying technique and the structural properties and ingredient of the aerogel samples wer...
Ta2O5-TiO2 composite aerogels were successfully prepared from titanium n-butoxide and tantalum ethylate dissolved in ethanol by sol-gel process and supercritical drying technique and the structural properties and ingredient of the aerogel samples wer...
2008,
20.
Abstract:
Proton generation and angular distribution produced by supershort laser pulse irradiating thin solid Au target were investigated. The experiment was performed on the SILEX-Ⅰ laser facility. CR39 was mounted 3.3 cm behind the target to record the prot...
Proton generation and angular distribution produced by supershort laser pulse irradiating thin solid Au target were investigated. The experiment was performed on the SILEX-Ⅰ laser facility. CR39 was mounted 3.3 cm behind the target to record the prot...
2008,
20.
Abstract:
S∶1, 1∶1 and R∶1 laser damage tests for fused silica were performed under different gas atmosphere (air, O2, N2) and pressures (10-3~105 Pa) with 351 nm Nd:YLF laser. The results show that laser-induced damage threshold(LIDT) via 1∶1 and S∶1 tests ar...
S∶1, 1∶1 and R∶1 laser damage tests for fused silica were performed under different gas atmosphere (air, O2, N2) and pressures (10-3~105 Pa) with 351 nm Nd:YLF laser. The results show that laser-induced damage threshold(LIDT) via 1∶1 and S∶1 tests ar...
2008,
20.
Abstract:
The edge effects would happen when a workpiece extends beyond a polishing tool, which could lead to low polishing efficiency. So a new skin model, representing the nonlinear pressure distribution, was proposed to avoid the negative pressure and to ca...
The edge effects would happen when a workpiece extends beyond a polishing tool, which could lead to low polishing efficiency. So a new skin model, representing the nonlinear pressure distribution, was proposed to avoid the negative pressure and to ca...
2008,
20.
Abstract:
In order to meet the requirement of symmetry tuning and measurement in implosion experiment, a image processing method has been adopted. This method is based on Legendre fitting, with the theory of radiation drive symmetry，which help the analysis of ...
In order to meet the requirement of symmetry tuning and measurement in implosion experiment, a image processing method has been adopted. This method is based on Legendre fitting, with the theory of radiation drive symmetry，which help the analysis of ...
2008,
20.
Abstract:
The stimulated backward Raman scattering generated by femosecond laser interaction with gas target was measured. In the condition of experiment, the stimulated Raman backscatter(SRS) is in the strongly coupled mode, and several nonlinear Stokes satel...
The stimulated backward Raman scattering generated by femosecond laser interaction with gas target was measured. In the condition of experiment, the stimulated Raman backscatter(SRS) is in the strongly coupled mode, and several nonlinear Stokes satel...
2008,
20.
Abstract:
Based on the nonlinear dispersion relation of electromagnetic wave in relativistic plasma, the nonlinear controlling equation for linearly polarized mode is obtained using Karpman’s method. The modulation instability of intense laser pulse propagatin...
Based on the nonlinear dispersion relation of electromagnetic wave in relativistic plasma, the nonlinear controlling equation for linearly polarized mode is obtained using Karpman’s method. The modulation instability of intense laser pulse propagatin...
2008,
20.
Abstract:
HEM11 mode in a transverse deflecting structure was simulated, analyzed and compared with TM01 mode. A prototype of this deflecting structure has been made, whose transverse field distribution is simulated with Ansoft HFSS. Perturbation method is use...
HEM11 mode in a transverse deflecting structure was simulated, analyzed and compared with TM01 mode. A prototype of this deflecting structure has been made, whose transverse field distribution is simulated with Ansoft HFSS. Perturbation method is use...
2008,
20.
Abstract:
Using external longitudinal magnetic-field to guide dual-beam out of the dual-shift tubes is a key step for the practicality of synchronizing dual-beam produced by a single accelerator. On the basis of the simulation of the confining magnetic-field f...
Using external longitudinal magnetic-field to guide dual-beam out of the dual-shift tubes is a key step for the practicality of synchronizing dual-beam produced by a single accelerator. On the basis of the simulation of the confining magnetic-field f...
2008,
20.
Abstract:
The optimized simulation result of a C-band 16-element single-layered radial line helical square array antenna is presented and the experiment researches are developed for an antenna fabricated according to simulated structure. During experiment rese...
The optimized simulation result of a C-band 16-element single-layered radial line helical square array antenna is presented and the experiment researches are developed for an antenna fabricated according to simulated structure. During experiment rese...
2008,
20.
Abstract:
The transmission line method(TLM) is extended to include higher-order transverse electric(TE) cavity modes which are introduced by aperture coupling and the extended TLM is used to analyze the shielding effectiveness(SE) of double layer rectangular e...
The transmission line method(TLM) is extended to include higher-order transverse electric(TE) cavity modes which are introduced by aperture coupling and the extended TLM is used to analyze the shielding effectiveness(SE) of double layer rectangular e...
2008,
20.
Abstract:
The quasi-optical mode converter consists of a ripple-wall waveguide launcher, a quasi-elliptical mirror and two toroidal mirrors.The wave beam in the launcher can be described by geometric optics. the coupled-mode theory has been used to analyze the...
The quasi-optical mode converter consists of a ripple-wall waveguide launcher, a quasi-elliptical mirror and two toroidal mirrors.The wave beam in the launcher can be described by geometric optics. the coupled-mode theory has been used to analyze the...
2008,
20.
Abstract:
The eigenfrequency and the characteristic impedance of π-TM high order mode of rectangular double-gap cavity with a coupling slot in the center are calculated by analytic method. The influence of sizes and the position of the coupling slot on the fre...
The eigenfrequency and the characteristic impedance of π-TM high order mode of rectangular double-gap cavity with a coupling slot in the center are calculated by analytic method. The influence of sizes and the position of the coupling slot on the fre...
2008,
20.
Abstract:
The analytic expression of high order mode electronic conductance model in double gap coupling multi-beam klystron(MBK) cavity is presented. The oscillations of high order modes were studied by the model and field structures have been simulated with ...
The analytic expression of high order mode electronic conductance model in double gap coupling multi-beam klystron(MBK) cavity is presented. The oscillations of high order modes were studied by the model and field structures have been simulated with ...
2008,
20.
Abstract:
It was found that the pressure-current curves were linear in electron ring, while non-linear in positron ring, especially in arc sections of positron ring. It might be since that the synchrotron photoelectrons transversely kicked by the positron beam...
It was found that the pressure-current curves were linear in electron ring, while non-linear in positron ring, especially in arc sections of positron ring. It might be since that the synchrotron photoelectrons transversely kicked by the positron beam...
2008,
20.
Abstract:
As a new RF generator, the direct digital synthesizer(DDS) has been widely used. In order to reduce the high cost of the signal generator comprising a high performance DDS device, the method of picking-up a desired aliased signal DDS output is adopte...
As a new RF generator, the direct digital synthesizer(DDS) has been widely used. In order to reduce the high cost of the signal generator comprising a high performance DDS device, the method of picking-up a desired aliased signal DDS output is adopte...
2008,
20.
Abstract:
Magnetic-field power-supply controlling system needs to update wave-data in time for the Heavy lon Research Facility at Lanzhou Cooler Storage Ring. So a software for the system with data-driven pattern was designed and optimized adopting the TMS320C...
Magnetic-field power-supply controlling system needs to update wave-data in time for the Heavy lon Research Facility at Lanzhou Cooler Storage Ring. So a software for the system with data-driven pattern was designed and optimized adopting the TMS320C...
2008,
20.
Abstract:
A scanning motion control system was developed for the high-energy X-ray industrial computerized tomography (CT). The system consists of an industrial control computer, a counter card, a control card, servo drivers, servo motors, working platforms, g...
A scanning motion control system was developed for the high-energy X-ray industrial computerized tomography (CT). The system consists of an industrial control computer, a counter card, a control card, servo drivers, servo motors, working platforms, g...
2008,
20.
Abstract:
The general property of space charge dominated beam behavior is that a beam with an initial non-linear profile tends to become more uniform and this process is associated with strong emittance and the appearance of beam halo which are the potential s...
The general property of space charge dominated beam behavior is that a beam with an initial non-linear profile tends to become more uniform and this process is associated with strong emittance and the appearance of beam halo which are the potential s...
2008,
20.
Abstract:
Temperature induced phase transition model was brought forward in this paper. ZrO2 and YSZ thin films were prepared by electron-beam evaporation method and their laser induced damage thresholds(LIDT) were measured; Moreover, structure of ZrO2 and YSZ...
Temperature induced phase transition model was brought forward in this paper. ZrO2 and YSZ thin films were prepared by electron-beam evaporation method and their laser induced damage thresholds(LIDT) were measured; Moreover, structure of ZrO2 and YSZ...
2008,
20.
Abstract:
The influence of nonlinear refraction in a medium on the in-line holographic imaging of the particle was investigated theoretically and experimentally. According to the in-line Fraunhofer holographic imaging of the particle and nonlinear paraxial wav...
The influence of nonlinear refraction in a medium on the in-line holographic imaging of the particle was investigated theoretically and experimentally. According to the in-line Fraunhofer holographic imaging of the particle and nonlinear paraxial wav...
2008,
20.
Abstract:
The wavelengths and weighted oscillator strengths for S8+-S13+ ions were systematically studied by using the relativistic Hartree-Fock method with configuration interaction. Comparison of the available experiment and theoretical calculations were car...
The wavelengths and weighted oscillator strengths for S8+-S13+ ions were systematically studied by using the relativistic Hartree-Fock method with configuration interaction. Comparison of the available experiment and theoretical calculations were car...
2008,
20.
Abstract:
Electron with an appropriate initial velocity injected into an oncoming, ultra-intense circularly polarized laser pulse will execute circular relativistic motion at the peak of laser pulse. The circulating electron then radiates in the same manner as...
Electron with an appropriate initial velocity injected into an oncoming, ultra-intense circularly polarized laser pulse will execute circular relativistic motion at the peak of laser pulse. The circulating electron then radiates in the same manner as...
2008,
20.
Abstract:
Al-Cu-Fe thin films were successfully deposited by magnetron co-sputtering. The substrates were pure Al, pure Cu in polished state and the stainless steel with different surface roughness. The surface morphologies of the films were observed by Atomic...
Al-Cu-Fe thin films were successfully deposited by magnetron co-sputtering. The substrates were pure Al, pure Cu in polished state and the stainless steel with different surface roughness. The surface morphologies of the films were observed by Atomic...
2008,
20.
Abstract:
The preparation,characterization and application of nanocrystalline diamond films have become a new “hot point” in the development of diamond films prepared by chemical vapor deposition. The preparation process of nanocrystalline diamond films with M...
The preparation,characterization and application of nanocrystalline diamond films have become a new “hot point” in the development of diamond films prepared by chemical vapor deposition. The preparation process of nanocrystalline diamond films with M...
2008,
20.
Abstract:
Numerical analysis was carried out based on the intrinsic breakdown model and the electro-mechanical breakdown model. The self-breakdown voltage characteristic of the polyester foil was measured in a plane-plane electrode arrangement with DC voltage....
Numerical analysis was carried out based on the intrinsic breakdown model and the electro-mechanical breakdown model. The self-breakdown voltage characteristic of the polyester foil was measured in a plane-plane electrode arrangement with DC voltage....
2008,
20.
Abstract:
For the need of intense current electron accelerator, a high voltage, long-life gas spark switch was designed. Anti-pollution design is used in the switch, the outer housing of the switch is made of Cu and a metal baffle is used to prevent the top pl...
For the need of intense current electron accelerator, a high voltage, long-life gas spark switch was designed. Anti-pollution design is used in the switch, the outer housing of the switch is made of Cu and a metal baffle is used to prevent the top pl...
2008,
20.
Abstract:
This paper introduces the design and experimental study of the primary energy source of an accelerator which can produce high power pulses (up to GW level) of duration about 6 ns, and repetition rate controllable from 1 to 300 Hz. The primary energy ...
This paper introduces the design and experimental study of the primary energy source of an accelerator which can produce high power pulses (up to GW level) of duration about 6 ns, and repetition rate controllable from 1 to 300 Hz. The primary energy ...
