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RSS2006 Vol. 18, No. 06
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2006,
18.
Abstract:
Considering some necessary factors in the design of SSHCL, material properties of Nd doped glass, YAG and GGG were compared. Transient temperature fields and thermal stress in these slab mediums during one working cycle were simulated. Numerical anal...
Considering some necessary factors in the design of SSHCL, material properties of Nd doped glass, YAG and GGG were compared. Transient temperature fields and thermal stress in these slab mediums during one working cycle were simulated. Numerical anal...
2006,
18.
Abstract:
The optimum fiber length of the single mode Yb-doped fiber amplifier is simulated. Experiments of the single-mode Yb-doped fiber amplifier and gratings compressor are discussed. The seed pulses come from a mode-locking Yb-doped fiber ring laser. The ...
The optimum fiber length of the single mode Yb-doped fiber amplifier is simulated. Experiments of the single-mode Yb-doped fiber amplifier and gratings compressor are discussed. The seed pulses come from a mode-locking Yb-doped fiber ring laser. The ...
2006,
18.
Abstract:
The Rytov approximation theory is applied to the angle-of-arrival fluctuation and the analytical expressions are developed for variance and power spectrum associated with the angle-of-arrival fluctuation of unbounded plane waves and spherical waves i...
The Rytov approximation theory is applied to the angle-of-arrival fluctuation and the analytical expressions are developed for variance and power spectrum associated with the angle-of-arrival fluctuation of unbounded plane waves and spherical waves i...
2006,
18.
Abstract:
A 3D physical optics model of a loaded cavity with phase disturbance is built. With a foldaway unstable resonator in a COIL, the effects of shock waves with different intensities at different physical locations on the phase and the output power of th...
A 3D physical optics model of a loaded cavity with phase disturbance is built. With a foldaway unstable resonator in a COIL, the effects of shock waves with different intensities at different physical locations on the phase and the output power of th...
2006,
18.
Abstract:
Using the model of dual-hyperbolic two temperature, taking the gold film as example, the temperature effects on heat capacity, thermal conductivity and relaxation time have been studied with an accuracy and stability forward-difference scheme, to whi...
Using the model of dual-hyperbolic two temperature, taking the gold film as example, the temperature effects on heat capacity, thermal conductivity and relaxation time have been studied with an accuracy and stability forward-difference scheme, to whi...
2006,
18.
Abstract:
Multi-walled carbon nanotubes water-surfactant suspensions were prepared by ultrasonication, and the optical limiting curves were measured for 1 064 nm, 10 ns Nd:YAG Q-switched puled laser. The experimental results indicated that the output energy va...
Multi-walled carbon nanotubes water-surfactant suspensions were prepared by ultrasonication, and the optical limiting curves were measured for 1 064 nm, 10 ns Nd:YAG Q-switched puled laser. The experimental results indicated that the output energy va...
2006,
18.
Abstract:
Based on laser induced plasma switch technology, the output pulse width of 4.4 ns of the solid-state Nd:YAG laser is obtained. The influences of the focal length of the lens and the laser beam energy on the shortened laser pulse width are presented. ...
Based on laser induced plasma switch technology, the output pulse width of 4.4 ns of the solid-state Nd:YAG laser is obtained. The influences of the focal length of the lens and the laser beam energy on the shortened laser pulse width are presented. ...
2006,
18.
Abstract:
Experimental research on X-ray guiding capillaries is the foundation of X-ray lens design. The experimental results of measuring transmission efficiency within the energy range of 50 eV~1.5 keV for a variety type of capillaries are presented, includi...
Experimental research on X-ray guiding capillaries is the foundation of X-ray lens design. The experimental results of measuring transmission efficiency within the energy range of 50 eV~1.5 keV for a variety type of capillaries are presented, includi...
2006,
18.
Abstract:
Theoretical research on soft-damage in photovoltaic semiconductor detectors under medium power density laser irradiation (between the saturation threshold and the damage threshold of detector) was carried out and a new mechanism was proposed. When la...
Theoretical research on soft-damage in photovoltaic semiconductor detectors under medium power density laser irradiation (between the saturation threshold and the damage threshold of detector) was carried out and a new mechanism was proposed. When la...
2006,
18.
Abstract:
The beam wander of focused laser beam in atmospheric boundary layer was studied experimentally over 1 000 m path at five meters above sea level using a position sensitive photomultiplier tube (PSPMT). A new experimental setup was designed to directly...
The beam wander of focused laser beam in atmospheric boundary layer was studied experimentally over 1 000 m path at five meters above sea level using a position sensitive photomultiplier tube (PSPMT). A new experimental setup was designed to directly...
2006,
18.
Abstract:
The surfaces of HgCdTe plates irradiated by one pulse of TEA-CO2 laser with 37.5 J and energy density of 937.5 J/cm2 are examined by an optical microscope. After laser irradiation, there are large numbers of cracks and much trace of melting in the su...
The surfaces of HgCdTe plates irradiated by one pulse of TEA-CO2 laser with 37.5 J and energy density of 937.5 J/cm2 are examined by an optical microscope. After laser irradiation, there are large numbers of cracks and much trace of melting in the su...
2006,
18.
Abstract:
The window function of circular hard-edge apertures is simulated and optimized by the Laguerre-Gauss truncated series, and applied to study the diffraction of Gaussian beams and 0-order Bessel-Gaussian beams by the hard-edge aperture. The results of ...
The window function of circular hard-edge apertures is simulated and optimized by the Laguerre-Gauss truncated series, and applied to study the diffraction of Gaussian beams and 0-order Bessel-Gaussian beams by the hard-edge aperture. The results of ...
2006,
18.
Abstract:
In the study of the uniform droplet singlet oxygen generator, the breakup of a round jet into the droplet stream is a vital technology. The disturbance applied threw by the piezoelectric transducer to the stream grow on the surface of the stream. The...
In the study of the uniform droplet singlet oxygen generator, the breakup of a round jet into the droplet stream is a vital technology. The disturbance applied threw by the piezoelectric transducer to the stream grow on the surface of the stream. The...
2006,
18.
Abstract:
Optical transmission is a key issue of the Thomson scattering system due to the weak scattered signal. In this paper, the methods of reducing the stray light and increasing the optical transmittance of the system is discussed. Simulation shows that t...
Optical transmission is a key issue of the Thomson scattering system due to the weak scattered signal. In this paper, the methods of reducing the stray light and increasing the optical transmittance of the system is discussed. Simulation shows that t...
2006,
18.
Abstract:
200 μg/cm2 free-standing Zr filters of 20 mm in diameter were made by DC magnetron sputtering. Soft X-ray spectral transmittance of the filters was measured in the National Synchrotron Radiation Laboratory, and the light blocking performance was test...
200 μg/cm2 free-standing Zr filters of 20 mm in diameter were made by DC magnetron sputtering. Soft X-ray spectral transmittance of the filters was measured in the National Synchrotron Radiation Laboratory, and the light blocking performance was test...
2006,
18.
Abstract:
In this paper, the electron temperature, electron density and areal density of imploded fuel pellet driven by SGⅡ laser were diagnosed through X-ray method. The electron temperature deduced from intensity ratio of Ly-beta line and He-beta line of Ar ...
In this paper, the electron temperature, electron density and areal density of imploded fuel pellet driven by SGⅡ laser were diagnosed through X-ray method. The electron temperature deduced from intensity ratio of Ly-beta line and He-beta line of Ar ...
2006,
18.
Abstract:
Phloroglucinol-formaldehyde(PF) aerogels and carbonized PF (CPF) aerogels were prepared from Phloroglucinol(P) and Formaldehyde(F) by sol-gel, solvent exchanging, supercritical drying and carbonization processes. The aerogel has a large specific surf...
Phloroglucinol-formaldehyde(PF) aerogels and carbonized PF (CPF) aerogels were prepared from Phloroglucinol(P) and Formaldehyde(F) by sol-gel, solvent exchanging, supercritical drying and carbonization processes. The aerogel has a large specific surf...
2006,
18.
Abstract:
Pure Ti films were fabricated by DC magnetron sputtering. The deposition rate, surface roughness, crystal structure and stress of Ti films at different sputtering power were studied. The deposition rate in-creases with the increase of the sputtering ...
Pure Ti films were fabricated by DC magnetron sputtering. The deposition rate, surface roughness, crystal structure and stress of Ti films at different sputtering power were studied. The deposition rate in-creases with the increase of the sputtering ...
2006,
18.
Abstract:
The influence of the wall thickness and filling gas procedure on the permeability of the hollow glass microspheres (HGM) were discussed. The primary experiments show that the deuterium permeation coefficient was 5.0×10-22 mol·m-1·s-1·Pa-1 with the wa...
The influence of the wall thickness and filling gas procedure on the permeability of the hollow glass microspheres (HGM) were discussed. The primary experiments show that the deuterium permeation coefficient was 5.0×10-22 mol·m-1·s-1·Pa-1 with the wa...
2006,
18.
Abstract:
Adopting zircon pump as inspiration pump, a static state simulation equipment was designed for vacuum holding. The feasibility simulation experiment about keeping vacuum was performed, and the simulation results indicated that the pressure of this eq...
Adopting zircon pump as inspiration pump, a static state simulation equipment was designed for vacuum holding. The feasibility simulation experiment about keeping vacuum was performed, and the simulation results indicated that the pressure of this eq...
2006,
18.
Abstract:
Quantitative analysis of the large-signal beam-wave interaction of coupled-cavity traveling-wave tube (TWT) is performed using three-dimensional PIC code. With an integrated model, an S-band CW coupled-cavity TWT is designed. The design parameters of...
Quantitative analysis of the large-signal beam-wave interaction of coupled-cavity traveling-wave tube (TWT) is performed using three-dimensional PIC code. With an integrated model, an S-band CW coupled-cavity TWT is designed. The design parameters of...
2006,
18.
Abstract:
A simple measurement system for the shielding effectiveness is developed, and a method for measuring pulse electric field shielding effectiveness of shielding body is presented. The system is made up of pulse electric field radiation device and its r...
A simple measurement system for the shielding effectiveness is developed, and a method for measuring pulse electric field shielding effectiveness of shielding body is presented. The system is made up of pulse electric field radiation device and its r...
2006,
18.
Abstract:
Electric field waveform in the simulator working region was calculated using the moment method and fast multipole method. The relationship between transitional section structure and EMP waveform was studied. And the optimum cone angles of transitiona...
Electric field waveform in the simulator working region was calculated using the moment method and fast multipole method. The relationship between transitional section structure and EMP waveform was studied. And the optimum cone angles of transitiona...
2006,
18.
Abstract:
For purpose of getting the radial electric current density in the medium of the cable due to X-rays illumination, Monte Carlo method and Finite-Difference Time-Domain (FDTD) method are used. Using the radial electric current density as the source of ...
For purpose of getting the radial electric current density in the medium of the cable due to X-rays illumination, Monte Carlo method and Finite-Difference Time-Domain (FDTD) method are used. Using the radial electric current density as the source of ...
2006,
18.
Abstract:
According to the general coupled-wave equations of wave-guide with helical corrugation, selecting the import-mode TE11, the coupled mode TE21 is gained. Based on the rules of mode coupling in helical wave-guide the determinate formula for coupling eq...
According to the general coupled-wave equations of wave-guide with helical corrugation, selecting the import-mode TE11, the coupled mode TE21 is gained. Based on the rules of mode coupling in helical wave-guide the determinate formula for coupling eq...
2006,
18.
Abstract:
This paper presents the progress on design and adjustment of cavities, experiments of beam-current modulation and microwave extraction for an S-band long-pulse-intense-current relativistic klystron amplifier. Modulation of long-pulse intense relativi...
This paper presents the progress on design and adjustment of cavities, experiments of beam-current modulation and microwave extraction for an S-band long-pulse-intense-current relativistic klystron amplifier. Modulation of long-pulse intense relativi...
2006,
18.
Abstract:
The interaction of two electron beams in a cylindrical waveguide filled with plasma is studied in this paper. The linear theory is established based on a fluid model. The numerical results show the two-stream instability of two electron beams can pro...
The interaction of two electron beams in a cylindrical waveguide filled with plasma is studied in this paper. The linear theory is established based on a fluid model. The numerical results show the two-stream instability of two electron beams can pro...
2006,
18.
Abstract:
A high-voltage high-repetition-rate multi-channel gas switch was designed and the principle of the swith was described in the paper. Primary experiment was carried out on the accelerator SINUS-700. The primary experiment shows that the switch can ope...
A high-voltage high-repetition-rate multi-channel gas switch was designed and the principle of the swith was described in the paper. Primary experiment was carried out on the accelerator SINUS-700. The primary experiment shows that the switch can ope...
2006,
18.
Abstract:
Digital signal processing (DSP) is widely used in the field of beam diagnostics. Especially, DSP achieves very good performance in beam position signal analysis and betatron tune measurement. In Hefei light source, when beam was excited by narrowban...
Digital signal processing (DSP) is widely used in the field of beam diagnostics. Especially, DSP achieves very good performance in beam position signal analysis and betatron tune measurement. In Hefei light source, when beam was excited by narrowban...
2006,
18.
Abstract:
Effects of the geometry parameters of drawing electrode， oscillator plate voltage and extraction voltage on the focusing degree of ion source are measured and the experimental results are analyzed to ensure the quality extraction of the RF ion source...
Effects of the geometry parameters of drawing electrode， oscillator plate voltage and extraction voltage on the focusing degree of ion source are measured and the experimental results are analyzed to ensure the quality extraction of the RF ion source...
2006,
18.
Abstract:
A new RFKO（RF Knock Out） system for partial filling operation is in commission at the Hefei liglit source storage ring. This system is composed of a frequency divider, waveform generator, vector signal source and wideband amplifier. The in-phase sign...
A new RFKO（RF Knock Out） system for partial filling operation is in commission at the Hefei liglit source storage ring. This system is composed of a frequency divider, waveform generator, vector signal source and wideband amplifier. The in-phase sign...
2006,
18.
Abstract:
Scattering is a most important factor in determining the object information in high energy X-ray radiography. The characteristics and tally methods of FXRMC and MCNP are given. Several high energy X-ray radiography systems are simulated with FXRMC an...
Scattering is a most important factor in determining the object information in high energy X-ray radiography. The characteristics and tally methods of FXRMC and MCNP are given. Several high energy X-ray radiography systems are simulated with FXRMC an...
2006,
18.
Abstract:
A metallic capillary atom beam source of simple and compact design is described. As the first test, thulium is evaporated and the cations which are mainly due to the thermal ionization are measured. The strongpoint of small power and high temperature...
A metallic capillary atom beam source of simple and compact design is described. As the first test, thulium is evaporated and the cations which are mainly due to the thermal ionization are measured. The strongpoint of small power and high temperature...
2006,
18.
Abstract:
Gold nanoparticles have been prepared by magnetron sputtering technique, and their morphologies, granularities, structures, optical absorption properties and chemical components have been characterized by using TEM, XRD, UV-Vis and XPS. The results i...
Gold nanoparticles have been prepared by magnetron sputtering technique, and their morphologies, granularities, structures, optical absorption properties and chemical components have been characterized by using TEM, XRD, UV-Vis and XPS. The results i...
2006,
18.
Abstract:
Organic powder and carbon aerogel powder were prepared by sol-gel method with the help of ultrasonic emulsification technology using resorcinol and formaldehyde. Different experimental conditions were investigated to reveal the formation mechanism of...
Organic powder and carbon aerogel powder were prepared by sol-gel method with the help of ultrasonic emulsification technology using resorcinol and formaldehyde. Different experimental conditions were investigated to reveal the formation mechanism of...
2006,
18.
Abstract:
Breakdown experiments of point-plane gas gaps were investigated with repetitive burst conditions under variant repetition rates (10, 100, 500 and 1 000 Hz), diverse gap distances (0.5 cm and 1.0 cm) and different gas pressures (0.1~0.4 MPa) respectiv...
Breakdown experiments of point-plane gas gaps were investigated with repetitive burst conditions under variant repetition rates (10, 100, 500 and 1 000 Hz), diverse gap distances (0.5 cm and 1.0 cm) and different gas pressures (0.1~0.4 MPa) respectiv...
2006,
18.
Abstract:
High current and high-charge transfer spark gap switches are required for a range of capacitor bank applications such as electromagnetic rail, power conditioning system that power the flashlamps for laser fusion drivers. A compact long-lived spark ga...
High current and high-charge transfer spark gap switches are required for a range of capacitor bank applications such as electromagnetic rail, power conditioning system that power the flashlamps for laser fusion drivers. A compact long-lived spark ga...
2006,
18.
Abstract:
The stability of a cell pulse source is a key index in multi-source’s synchronization. The stability index of pulse source is defined in this article. Potential advantage of full-solid nanosecond pulse sources for synchronizing is remarked, because o...
The stability of a cell pulse source is a key index in multi-source’s synchronization. The stability index of pulse source is defined in this article. Potential advantage of full-solid nanosecond pulse sources for synchronizing is remarked, because o...
2006,
18.
Abstract:
This paper presents a kind of helical pulse forming line which is designed for a long pulse accelerator. The calculating formulae and the experimental result are both presented. The forming line is charged by a pulse source with a maximum output volt...
This paper presents a kind of helical pulse forming line which is designed for a long pulse accelerator. The calculating formulae and the experimental result are both presented. The forming line is charged by a pulse source with a maximum output volt...
2006,
18.
Abstract:
The high sensitive laser interferometer of checking minuteness phase shift 0.2° was built using the way of heterodyne and phase track. The line mass-density of gas puff Z-pinch load was measured. The interruption of machine vibration to interference-...
The high sensitive laser interferometer of checking minuteness phase shift 0.2° was built using the way of heterodyne and phase track. The line mass-density of gas puff Z-pinch load was measured. The interruption of machine vibration to interference-...
2006,
18.
Abstract:
The breakdown test apparatus with the measurement system of voltage and current signals in liquid dielectrics is designed; The relations of repetitive frequency, electrode shape and gap to some breakdown characteristics of liquid dielectrics such as ...
The breakdown test apparatus with the measurement system of voltage and current signals in liquid dielectrics is designed; The relations of repetitive frequency, electrode shape and gap to some breakdown characteristics of liquid dielectrics such as ...
