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RSS2013 Vol. 25, No. S0
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2013,
25: 1-4.
Abstract:
We apply the ray tracing method to design of high-energy-laser calorimeter. With the backward scattering problem of the calorimeter with conical cavity, we use the ray tracing method for energy simulation, and the simulation results compared with the...
We apply the ray tracing method to design of high-energy-laser calorimeter. With the backward scattering problem of the calorimeter with conical cavity, we use the ray tracing method for energy simulation, and the simulation results compared with the...
2013,
25: 5-8.
Abstract:
The analytic expression of the intensity of any polarizing direction versus the phase difference in polarization coherent beam combining is deduced. The validity of the expression is proved by experiment. The coherent beam combining(CBC) experiment b...
The analytic expression of the intensity of any polarizing direction versus the phase difference in polarization coherent beam combining is deduced. The validity of the expression is proved by experiment. The coherent beam combining(CBC) experiment b...
2013,
25: 9-12.
Abstract:
The diffraction effect of the laser emission system is simulated using the format of 2D Fourier transform of the Fresnel diffraction integral formula. The method of fast Fourier transform(FFT) is used to calculate diffraction integral formula, and th...
The diffraction effect of the laser emission system is simulated using the format of 2D Fourier transform of the Fresnel diffraction integral formula. The method of fast Fourier transform(FFT) is used to calculate diffraction integral formula, and th...
2013,
25: 13-18.
Abstract:
According to the experiment of validation and optimization, the design of thin film's weak absorption testing set-up is finished for quick development of high energy laser, which can achieve the aims of high testing precision, large aperture, various...
According to the experiment of validation and optimization, the design of thin film's weak absorption testing set-up is finished for quick development of high energy laser, which can achieve the aims of high testing precision, large aperture, various...
2013,
25: 19-23.
Abstract:
VMM(vector-matrix-multiply) method was widely used for wave-front reconstruction in Shack-Hartmann wave-front sensor. Taking advantage of great number of calculations, VMM can give accurate enough result for most of cases, but it can not work properl...
VMM(vector-matrix-multiply) method was widely used for wave-front reconstruction in Shack-Hartmann wave-front sensor. Taking advantage of great number of calculations, VMM can give accurate enough result for most of cases, but it can not work properl...
2013,
25: 24-28.
Abstract:
In the premise of stabilized tracking for the dynamic target, the centerline extracted is very important to the high accuracy of target location and real-time pose decision, because it is the major judging for target location. According to the Hessia...
In the premise of stabilized tracking for the dynamic target, the centerline extracted is very important to the high accuracy of target location and real-time pose decision, because it is the major judging for target location. According to the Hessia...
2013,
25: 29-32.
Abstract:
A kind of separated COIL resonant cavity using the I-shaped structure, a supporting system and wire-rope isolators is designed. Through simulation, the structure of the supporting system is optimized with the target of increasing its first natural fr...
A kind of separated COIL resonant cavity using the I-shaped structure, a supporting system and wire-rope isolators is designed. Through simulation, the structure of the supporting system is optimized with the target of increasing its first natural fr...
2013,
25: 33-38.
Abstract:
A wavelet domain Wiener filtering method is proposed for denoising of cone-beam dental CT images. The db4 wavelet is used to decompose the CT image, and the Wiener filtering is implemented in each scale of wavelet coefficients, while the parameters o...
A wavelet domain Wiener filtering method is proposed for denoising of cone-beam dental CT images. The db4 wavelet is used to decompose the CT image, and the Wiener filtering is implemented in each scale of wavelet coefficients, while the parameters o...
2013,
25: 39-45.
Abstract:
The courses of the energy transfer from electricity to the Nd:glass disk were numerically analyzed, such as electricity-light conversion of Xenon flash lamp, cavity transformation, the absorbing of pump-light converting to the laser-energy level and ...
The courses of the energy transfer from electricity to the Nd:glass disk were numerically analyzed, such as electricity-light conversion of Xenon flash lamp, cavity transformation, the absorbing of pump-light converting to the laser-energy level and ...
2013,
25: 46-50.
Abstract:
By researching on the character and application method of EPOLL mechanism, a magnanimous network data processing model based on EPOLL mechanism in Linux is advanced. The problems about multithread synchronization and data access mechanism in multithr...
By researching on the character and application method of EPOLL mechanism, a magnanimous network data processing model based on EPOLL mechanism in Linux is advanced. The problems about multithread synchronization and data access mechanism in multithr...
2013,
25: 51-54.
Abstract:
Sky background luminance is very important in imaging and optical information transition in space. The existing sky luminance simulation codes, such as Modtran cant be suitable for different climate and global location. Therefore, we developed a sky ...
Sky background luminance is very important in imaging and optical information transition in space. The existing sky luminance simulation codes, such as Modtran cant be suitable for different climate and global location. Therefore, we developed a sky ...
2013,
25: 55-58.
Abstract:
This article briefly describes the various components of the airborne light detection and ranging system, and analyzes error factors of the system. According to the Mianyang-Chengdu-Leshan inter-city railway station line engineering data of different...
This article briefly describes the various components of the airborne light detection and ranging system, and analyzes error factors of the system. According to the Mianyang-Chengdu-Leshan inter-city railway station line engineering data of different...
2013,
25: 59-62.
Abstract:
The optimization design is important to structural design. The structural optimization design of an optical platforms table surface was obtained in which the surface tables mechanical capability was used as the topology optimization constraining para...
The optimization design is important to structural design. The structural optimization design of an optical platforms table surface was obtained in which the surface tables mechanical capability was used as the topology optimization constraining para...
2013,
25: 63-66.
Abstract:
The base of optical cavity is the major structure of a chemical laser. The dynamic characteristics analysis of the base is very important. Aimed at the practical base, modal simulation is done by two boundary conditions, the influential factors of dy...
The base of optical cavity is the major structure of a chemical laser. The dynamic characteristics analysis of the base is very important. Aimed at the practical base, modal simulation is done by two boundary conditions, the influential factors of dy...
2013,
25: 67-70.
Abstract:
Using wavefront reconfiguration and corrector is one of the effective approaches in improving the beam quality control of the high energy laser system. A general architecture of embedded wavefront process and control system, as well as the theoretic ...
Using wavefront reconfiguration and corrector is one of the effective approaches in improving the beam quality control of the high energy laser system. A general architecture of embedded wavefront process and control system, as well as the theoretic ...
2013,
25: 71-76.
Abstract:
The free modes of an optical platform were analyzed with finite element method, and then the modal testing was accomplished in actual operating conditions. The first order frequencies in the vertical and horizontal directions of the optical platform ...
The free modes of an optical platform were analyzed with finite element method, and then the modal testing was accomplished in actual operating conditions. The first order frequencies in the vertical and horizontal directions of the optical platform ...
Application of thermal effect of infrared light to forming uniform DD layers in spherical cryotarget
2013,
25: 77-80.
Abstract:
Based on the request of the solid fuel in inertial confinement fusion (ICF) capsule and the thermal effect of infrared (IR) light, the IR lights function of changing the spatial distribution and micro-structure of solid deuterium is studied. It is fo...
Based on the request of the solid fuel in inertial confinement fusion (ICF) capsule and the thermal effect of infrared (IR) light, the IR lights function of changing the spatial distribution and micro-structure of solid deuterium is studied. It is fo...
2013,
25: 81-86.
Abstract:
The design method of hardware-in-the-loop simulation platform for measurement and control system is introduced. The system hardware is implemented by using computer and PCI interface card, and the electric characteristics of control interface are sim...
The design method of hardware-in-the-loop simulation platform for measurement and control system is introduced. The system hardware is implemented by using computer and PCI interface card, and the electric characteristics of control interface are sim...
2013,
25: 87-90.
Abstract:
Software testing is one of the most important means to ensure quality of software. The design of test cases is the key of software testing. This paper describes several methods of black-box testing technologies and how to skillfully apply black-box t...
Software testing is one of the most important means to ensure quality of software. The design of test cases is the key of software testing. This paper describes several methods of black-box testing technologies and how to skillfully apply black-box t...
2013,
25: 91-95.
Abstract:
The function and relationship of all parts of MVC mode are introduced. According to operation requirement peculiarity of command and control system, a certain relationship model is advanced based on MVC mode. To meet the development requirement of co...
The function and relationship of all parts of MVC mode are introduced. According to operation requirement peculiarity of command and control system, a certain relationship model is advanced based on MVC mode. To meet the development requirement of co...
2013,
25: 96-100.
Abstract:
Many fire control systems nowadays need real-time tracking and pointing to targets. In their design, demonstration and analysis, it is often necessary to estimate the angular velocity, angular acceleration and their variation law to provide basis for...
Many fire control systems nowadays need real-time tracking and pointing to targets. In their design, demonstration and analysis, it is often necessary to estimate the angular velocity, angular acceleration and their variation law to provide basis for...
2013,
25: 101-105.
Abstract:
The investigation and project for navigating, surveying and control of aviation based on GoogleEarth(GE) is introduced. Lots of problems in navigation probe and control with simple aerostat are solved. The veracity is improved, meanwhile the difficul...
The investigation and project for navigating, surveying and control of aviation based on GoogleEarth(GE) is introduced. Lots of problems in navigation probe and control with simple aerostat are solved. The veracity is improved, meanwhile the difficul...
2013,
25: 106-110.
Abstract:
Different geometrical characteristics are common in the modelling and analysis of microwave structure, the hybrid modeling method based on solid element and shell element is very effective, because the element and node number will decrease by the met...
Different geometrical characteristics are common in the modelling and analysis of microwave structure, the hybrid modeling method based on solid element and shell element is very effective, because the element and node number will decrease by the met...
2013,
25: 111-114.
Abstract:
The air breakdown caused by high power microwave pulse was studied theoretically and simulated numerically. The electron density expressions for single pulse and repetition-frequency pulse were deduced. The thresholds of air breakdown by high power m...
The air breakdown caused by high power microwave pulse was studied theoretically and simulated numerically. The electron density expressions for single pulse and repetition-frequency pulse were deduced. The thresholds of air breakdown by high power m...
2013,
25: 115-118.
Abstract:
A Denisov launcher for transforming TE6,2 mode to Gaussian-like mode is proposed to be employed in 3 mm Gyrotron. Based on the mode coupling theory, the design method of the Denisov launcher is shown. By adopting developed mathematical programme, the...
A Denisov launcher for transforming TE6,2 mode to Gaussian-like mode is proposed to be employed in 3 mm Gyrotron. Based on the mode coupling theory, the design method of the Denisov launcher is shown. By adopting developed mathematical programme, the...
2013,
25: 119-123.
Abstract:
The slow wave structure (SWS) of higher-order depressed magnetically insulated transmission line oscillator (HDMILO) is analyzed rigorously, and the electromagnetic field distribution is derived. High-frequency analysis results reveal that the degene...
The slow wave structure (SWS) of higher-order depressed magnetically insulated transmission line oscillator (HDMILO) is analyzed rigorously, and the electromagnetic field distribution is derived. High-frequency analysis results reveal that the degene...
2013,
25: 124-128.
Abstract:
In order to improve beam transmission efficiency for a four-rod radio frequency quadrupole (RFQ) accelerator, inter-electrode voltage distribution must be tuned and its accurate value need to be measured. Effect of tuning plates on inter-electrode vo...
In order to improve beam transmission efficiency for a four-rod radio frequency quadrupole (RFQ) accelerator, inter-electrode voltage distribution must be tuned and its accurate value need to be measured. Effect of tuning plates on inter-electrode vo...
2013,
25: 129-132.
Abstract:
Cold cathode RF electron guns based on field emissions combine the characteristics of thermo- and photo-cathode RF guns and may provide low emittance, high current electron beams. Studies of such a gun in the Institute of Applied Electronics, CAEP ar...
Cold cathode RF electron guns based on field emissions combine the characteristics of thermo- and photo-cathode RF guns and may provide low emittance, high current electron beams. Studies of such a gun in the Institute of Applied Electronics, CAEP ar...
2013,
25: 133-136.
Abstract:
In order to study the free-electron laser technology, an independently tunable cells thermionic-cathode RF gun with two microwave feed-in ports is manufactured in CAEP. An experiment facility of power test is built, and experiment research on beam cu...
In order to study the free-electron laser technology, an independently tunable cells thermionic-cathode RF gun with two microwave feed-in ports is manufactured in CAEP. An experiment facility of power test is built, and experiment research on beam cu...
2013,
25: 137-140.
Abstract:
This paper describes the Experimental Physics and Industrial Control System (EPICS) with the Channel Archiver. We build the data acquisition system for THz-FEL facility to access the experimental data efficiently through the study of Channel Archiver...
This paper describes the Experimental Physics and Industrial Control System (EPICS) with the Channel Archiver. We build the data acquisition system for THz-FEL facility to access the experimental data efficiently through the study of Channel Archiver...
2013,
25: 141-144.
Abstract:
The laser wire (LW) method has been demonstrated as an effective non-interceptive technique for measuring transverse electron beam size of CW FELs and ERLs. To measure the beam size of a CW DC gun, which is built as an electron source of FEL-THz faci...
The laser wire (LW) method has been demonstrated as an effective non-interceptive technique for measuring transverse electron beam size of CW FELs and ERLs. To measure the beam size of a CW DC gun, which is built as an electron source of FEL-THz faci...
2013,
25: 145-148.
Abstract:
A key technology issue of high-average-power free-electron laser (FEL) is the demonstration of stable, reliable, high-brightness, high-power electron source operation. The photocathode DC high voltage electron gun requires extreme-height-vacuum and m...
A key technology issue of high-average-power free-electron laser (FEL) is the demonstration of stable, reliable, high-brightness, high-power electron source operation. The photocathode DC high voltage electron gun requires extreme-height-vacuum and m...
2013,
25: 149-152.
Abstract:
According to requirements of physical parameters of undulator, we mainly design the size tolerance and structure of magnets and poles, the performance parameters of magnet and the measurement system of permanent magnet. The size tolerances of magnets...
According to requirements of physical parameters of undulator, we mainly design the size tolerance and structure of magnets and poles, the performance parameters of magnet and the measurement system of permanent magnet. The size tolerances of magnets...
2013,
25: 153-157.
Abstract:
The physics design of the undulator in high average power free electronic laser terahertz source is discussed. Hybrid Halbach structure is selected, after the period length, period quantity and peak magnetic field strength, etc. are fixed. The dimens...
The physics design of the undulator in high average power free electronic laser terahertz source is discussed. Hybrid Halbach structure is selected, after the period length, period quantity and peak magnetic field strength, etc. are fixed. The dimens...
2013,
25: 158-160.
Abstract:
The surface of the active layer of GaAs photocathode must reach the atomically clean surface before Cs-O activeness. The most effective method, which is used quite often, is the high-temperature thermal cleaning. It is very difficult to measure the s...
The surface of the active layer of GaAs photocathode must reach the atomically clean surface before Cs-O activeness. The most effective method, which is used quite often, is the high-temperature thermal cleaning. It is very difficult to measure the s...
2013,
25: 161-163.
Abstract:
The gallium arsenide wafer was activated by excessive-oxygen YOYO activation after high-temperature cleaning on the wafer. The quantum efficiency and the lifetime under laser illuminating were measured, and the maximum quantum efficiency was 4.66%. A...
The gallium arsenide wafer was activated by excessive-oxygen YOYO activation after high-temperature cleaning on the wafer. The quantum efficiency and the lifetime under laser illuminating were measured, and the maximum quantum efficiency was 4.66%. A...
2013,
25: 164-168.
Abstract:
The Marx generator especially makes use of inductive charging technology to ensure high-repetitive operation. Low-inductance capacitors of 3.3 nF are chosen as energy storage capacitors. And helix inductors are utilized as charging and grounding elem...
The Marx generator especially makes use of inductive charging technology to ensure high-repetitive operation. Low-inductance capacitors of 3.3 nF are chosen as energy storage capacitors. And helix inductors are utilized as charging and grounding elem...
2013,
25: 169-172.
Abstract:
Presently, the high power microwave(HPM) radiation systems are widely concerned by researchers, asa driver of HPM radiation system. Marx generator has the advantage because of its high output peak power, compact structure and small volume. This paper...
Presently, the high power microwave(HPM) radiation systems are widely concerned by researchers, asa driver of HPM radiation system. Marx generator has the advantage because of its high output peak power, compact structure and small volume. This paper...
2013,
25: 173-176.
Abstract:
In order to enhance the working voltage of pseudospark switch, a two-staged pseudospark switch triggered by glow discharge is designed. The design of the switch is comprised of the anode, cathode, grid electrode and glow discharge cavity. The two-sta...
In order to enhance the working voltage of pseudospark switch, a two-staged pseudospark switch triggered by glow discharge is designed. The design of the switch is comprised of the anode, cathode, grid electrode and glow discharge cavity. The two-sta...
2013,
25: 177-180.
Abstract:
A 10-staged low impedance Marx generator is designed, the volume of the generator is about 0.5 m3 and the output power and pulse width are more than 30 GW and 200 ns. The compact pulsed power system contains 10 bipolar (50 kV) stages of capacitors an...
A 10-staged low impedance Marx generator is designed, the volume of the generator is about 0.5 m3 and the output power and pulse width are more than 30 GW and 200 ns. The compact pulsed power system contains 10 bipolar (50 kV) stages of capacitors an...
