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RSS2013 Vol. 25, No. 02
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2013,
25: 269-275.
doi: 10.3788/HPLPB20132502.0269
Abstract:
The repetitive explosive emission cathode (EEC) is the key component of high power diode for generating repetitive electron beams. The emission mechanisms of the cathodes triggered by whiskers and flashover are introduced in detail. Factors that limi...
The repetitive explosive emission cathode (EEC) is the key component of high power diode for generating repetitive electron beams. The emission mechanisms of the cathodes triggered by whiskers and flashover are introduced in detail. Factors that limi...
2013,
25: 276-280.
doi: 10.3788/HPLPB20132502.0276
Abstract:
A method for measuring laser intensity distribution based on fiber array is presented. The principle and structural design of the fiber array are introduced. The attenuation characteristic is analyzed theoretically. A demonstration module is built in...
A method for measuring laser intensity distribution based on fiber array is presented. The principle and structural design of the fiber array are introduced. The attenuation characteristic is analyzed theoretically. A demonstration module is built in...
2013,
25: 281-286.
doi: 10.3788/HPLPB20132502.0281
Abstract:
The influences on the isolation of the optical isolators in pulsed laser situation are theoretically analyzed, including magneto-optical crystals photoelastic effect caused by temperature gradient on cross section, extinction ratio and Kerr effect, a...
The influences on the isolation of the optical isolators in pulsed laser situation are theoretically analyzed, including magneto-optical crystals photoelastic effect caused by temperature gradient on cross section, extinction ratio and Kerr effect, a...
2013,
25: 287-291.
doi: 10.3788/HPLPB20132502.0287
Abstract:
In order to measure super-high reflectivity of any sphere optical element at different angles, such as 0, 10, 15, 30 and so on, two optical resonator structures are put forward: one is straight-cavity, and the other is folded-cavity. Physical length ...
In order to measure super-high reflectivity of any sphere optical element at different angles, such as 0, 10, 15, 30 and so on, two optical resonator structures are put forward: one is straight-cavity, and the other is folded-cavity. Physical length ...
2013,
25: 292-296.
doi: 10.3788/HPLPB20132502.0292
Abstract:
In order to determine the imaging quality degradation caused by the laser propagation through atmospheric turbulence in the Fourier telescopy system, the effects of turbulence on beam propagation characteristics are analyzed. We pointed out that the ...
In order to determine the imaging quality degradation caused by the laser propagation through atmospheric turbulence in the Fourier telescopy system, the effects of turbulence on beam propagation characteristics are analyzed. We pointed out that the ...
2013,
25: 297-300.
doi: 10.3788/HPLPB20132502.0297
Abstract:
Based on the discussion of the law of the interaction between optic field and fluid field, we adopted the physical model for high energy laser beams crossing through three-dimensional high speed flow. A two-dimensional Hartmann wavefront sensor was u...
Based on the discussion of the law of the interaction between optic field and fluid field, we adopted the physical model for high energy laser beams crossing through three-dimensional high speed flow. A two-dimensional Hartmann wavefront sensor was u...
2013,
25: 301-304.
doi: 10.3788/HPLPB20132502.0301
Abstract:
Considering the natural frequency weakening of a high power lasers optical precision mount matching with large aperture, the paper states an optical precision mount with large aperture, with its mechanical model built and its dynamic abilities analyz...
Considering the natural frequency weakening of a high power lasers optical precision mount matching with large aperture, the paper states an optical precision mount with large aperture, with its mechanical model built and its dynamic abilities analyz...
2013,
25: 305-309.
doi: 10.3788/HPLPB20132502.0305
Abstract:
The movement process of bubbles produced by synchronous double-pulse lasers focusing into water and then breaking it down has been recorded by high-speed cameras. The characteristics of four typical laser-induced acoustic signals were analyzed, and o...
The movement process of bubbles produced by synchronous double-pulse lasers focusing into water and then breaking it down has been recorded by high-speed cameras. The characteristics of four typical laser-induced acoustic signals were analyzed, and o...
2013,
25: 310-314.
doi: 10.3788/HPLPB20132502.0310
Abstract:
For high power linewidth-narrowed diode lasers, it's important to study rotation angle tolerance of the volume Bragg grating (VBG) for narrowing the spectral linewidth of two dimensional diode laser stacks. The diode laser with the VBG's external cav...
For high power linewidth-narrowed diode lasers, it's important to study rotation angle tolerance of the volume Bragg grating (VBG) for narrowing the spectral linewidth of two dimensional diode laser stacks. The diode laser with the VBG's external cav...
2013,
25: 315-318.
doi: 10.3788/HPLPB20132502.0315
Abstract:
In this paper, the GS algorithm used for phase retrieval is elaborated, and the application scope of this algorithm is expanded, no longer confined to the known pupil surface and the focal plane intensity. In the simulation, two vertical axial sectio...
In this paper, the GS algorithm used for phase retrieval is elaborated, and the application scope of this algorithm is expanded, no longer confined to the known pupil surface and the focal plane intensity. In the simulation, two vertical axial sectio...
2013,
25: 319-324.
doi: 10.3788/HPLPB20132502.0319
Abstract:
In order to control lasing transverse mode, improve laser mode stability, and enhance laser processing quality, the transverse modes of a high power transverse-flow CO2 laser are measured experimentally, and the mechanism of formation of laser transv...
In order to control lasing transverse mode, improve laser mode stability, and enhance laser processing quality, the transverse modes of a high power transverse-flow CO2 laser are measured experimentally, and the mechanism of formation of laser transv...
2013,
25: 325-329.
doi: 10.3788/HPLPB20132502.0325
Abstract:
In the progress of large aspheric mirror manufacturing, computer controlled active lap(CCAL) has been proved to be a useful tool with high precision and efficiency. Before polishing, the deformation measurement of the lap is necessary. The measuremen...
In the progress of large aspheric mirror manufacturing, computer controlled active lap(CCAL) has been proved to be a useful tool with high precision and efficiency. Before polishing, the deformation measurement of the lap is necessary. The measuremen...
2013,
25: 330-334.
doi: 10.3788/HPLPB20132502.0330
Abstract:
High-order harmonics and phase shift miscalibration are the two main systematic error sources that affect the accuracy of fringe analysis. To deal with these problems simultaneously, an iterative phase-shifting algorithm based on frequency filtering ...
High-order harmonics and phase shift miscalibration are the two main systematic error sources that affect the accuracy of fringe analysis. To deal with these problems simultaneously, an iterative phase-shifting algorithm based on frequency filtering ...
2013,
25: 335-340.
doi: 10.3788/HPLPB20132502.0335
Abstract:
Using deionized-water as working fluid, the large hight-to-width rate micro-fin cooling systems are proposed. The heat transfer characteristics of these micro-fin cooling systems are experimentally studied. It is found that the heat dissipation could...
Using deionized-water as working fluid, the large hight-to-width rate micro-fin cooling systems are proposed. The heat transfer characteristics of these micro-fin cooling systems are experimentally studied. It is found that the heat dissipation could...
2013,
25: 341-344.
doi: 10.3788/HPLPB20132502.0341
Abstract:
A novel zoom design athermalization (ZDA) method was proposed to realize athermalization for airborne CCD camera rapidly and efficiently. The relational model between athermal design and zoom design was built based on optical passive compensation. Fi...
A novel zoom design athermalization (ZDA) method was proposed to realize athermalization for airborne CCD camera rapidly and efficiently. The relational model between athermal design and zoom design was built based on optical passive compensation. Fi...
2013,
25: 345-349.
doi: 10.3788/HPLPB20132502.0345
Abstract:
In order to improve the resolution of digital holographic imaging system, the recording and reconstruction processes of a pre-magnification digital holographic system with a spherical reference wave are theoretically deduced. Then the point spread fu...
In order to improve the resolution of digital holographic imaging system, the recording and reconstruction processes of a pre-magnification digital holographic system with a spherical reference wave are theoretically deduced. Then the point spread fu...
2013,
25: 350-354.
doi: 10.3788/HPLPB20132502.0350
Abstract:
The two-photon absorption of water soluble CdTe quantum dots and Mn2+-doped CdTe quantum dots in four different sizes has been studied, by using the open Z-scan technique, with a Ti: sapphire laser at 800 nm wavelength, 50 fs pulsewidth, 1 kHz repeti...
The two-photon absorption of water soluble CdTe quantum dots and Mn2+-doped CdTe quantum dots in four different sizes has been studied, by using the open Z-scan technique, with a Ti: sapphire laser at 800 nm wavelength, 50 fs pulsewidth, 1 kHz repeti...
2013,
25: 355-357.
doi: 10.3788/HPLPB20132502.0355
Abstract:
The existing tuning methods of fiber lasers are researched, and they usually cannot take into account the requirements of the tuning range and tuning rate. To solve this problem, a new tuning method based on the photo-thermal effect is proposed, the ...
The existing tuning methods of fiber lasers are researched, and they usually cannot take into account the requirements of the tuning range and tuning rate. To solve this problem, a new tuning method based on the photo-thermal effect is proposed, the ...
2013,
25: 358-362.
doi: 10.3788/HPLPB20132502.0358
Abstract:
This paper introduces the beam characteristics of the MOPA slab laser system, including near-field intensity distribution, spatial character and temporal frequency of wavefront distortion. The deformable mirror with large dynamic range and high spati...
This paper introduces the beam characteristics of the MOPA slab laser system, including near-field intensity distribution, spatial character and temporal frequency of wavefront distortion. The deformable mirror with large dynamic range and high spati...
2013,
25: 363-366.
doi: 10.3788/HPLPB20132502.0363
Abstract:
By selecting appropriate optical materials and placing them in reasonable arrangements, an optical engine for the laser-LCOS projector has been designed, with its light sources comprising three LCOS panels and three primary-color lasers. The software...
By selecting appropriate optical materials and placing them in reasonable arrangements, an optical engine for the laser-LCOS projector has been designed, with its light sources comprising three LCOS panels and three primary-color lasers. The software...
2013,
25: 367-370.
doi: 10.3788/HPLPB20132502.0367
Abstract:
In order to better evaluate the beam combination and the character of combined beams, all the existing evaluating standards for beam quality are analyzed, and their disadvantages are also discussed. A new conception named generalized beam quality (GB...
In order to better evaluate the beam combination and the character of combined beams, all the existing evaluating standards for beam quality are analyzed, and their disadvantages are also discussed. A new conception named generalized beam quality (GB...
2013,
25: 371-374.
doi: 10.3788/HPLPB20132502.0371
Abstract:
The object and the image of the KBA X-ray microscope are not in the same horizontal plane. To overcome the difficulty of installing the KBA X-ray microscope in the target chamber，a double-aiming mode is adopted. Unlike general optical systems, the an...
The object and the image of the KBA X-ray microscope are not in the same horizontal plane. To overcome the difficulty of installing the KBA X-ray microscope in the target chamber，a double-aiming mode is adopted. Unlike general optical systems, the an...
2013,
25: 375-380.
doi: 10.3788/HPLPB20132502.0375
Abstract:
The passive diagnostic for radiation driven shock velocity is of critical importance in the research of radiation driven fusion and extreme high-pressure equation of state. Such diagnostic has been set up on SG-Ⅱ and the laser prototype facility. The...
The passive diagnostic for radiation driven shock velocity is of critical importance in the research of radiation driven fusion and extreme high-pressure equation of state. Such diagnostic has been set up on SG-Ⅱ and the laser prototype facility. The...
2013,
25: 381-384.
doi: 10.3788/HPLPB20132502.0381
Abstract:
In laser proton acceleration experiments, identifying different ions in the ion products is a basic and important issue. In this paper, we accomplished a calibration experiment, in which the CR39 detector is irradiated by monoenergetic proton and car...
In laser proton acceleration experiments, identifying different ions in the ion products is a basic and important issue. In this paper, we accomplished a calibration experiment, in which the CR39 detector is irradiated by monoenergetic proton and car...
2013,
25: 385-388.
doi: 10.3788/HPLPB20132502.0385
Abstract:
Indirectly driven capsule implosions are driven by four shock waves whose strength and relative timing must be controlled to high precision to keep the fuel on a low adiabat. The symmetry during the first 2 ns should be tuned carefully. The mainline ...
Indirectly driven capsule implosions are driven by four shock waves whose strength and relative timing must be controlled to high precision to keep the fuel on a low adiabat. The symmetry during the first 2 ns should be tuned carefully. The mainline ...
2013,
25: 389-393.
doi: 10.3788/HPLPB20132502.0389
Abstract:
The low-density foam of Z-pinch dynamic hohlraum has special requirements to the adhesive because of its porous structure and low mechanical intensity. The present paper reports the preparation of ultraviolet curable adhesives applicable for low-dens...
The low-density foam of Z-pinch dynamic hohlraum has special requirements to the adhesive because of its porous structure and low mechanical intensity. The present paper reports the preparation of ultraviolet curable adhesives applicable for low-dens...
2013,
25: 394-398.
doi: 10.3788/HPLPB20132502.0394
Abstract:
High power microwave(HPM) sources usually employ overmoded output waveguide to obtain higher power capacity. In designing feeder of beam waveguide and reflect antenna, TE11 mode needs to be convert to HE11 mode to radiate a quasiGaussian beam with q...
High power microwave(HPM) sources usually employ overmoded output waveguide to obtain higher power capacity. In designing feeder of beam waveguide and reflect antenna, TE11 mode needs to be convert to HE11 mode to radiate a quasiGaussian beam with q...
2013,
25: 399-406.
doi: 10.3788/HPLPB20132502.0399
Abstract:
The phenomenon of multipactor discharge suppressing on the grooved dielectric surfaceadopted in experiment is simulated with the Monte Carlo method. Dynamic equations, grooved surface boundary, initial energy and angular distribution of secondary ele...
The phenomenon of multipactor discharge suppressing on the grooved dielectric surfaceadopted in experiment is simulated with the Monte Carlo method. Dynamic equations, grooved surface boundary, initial energy and angular distribution of secondary ele...
2013,
25: 407-410.
doi: 10.3788/HPLPB20132502.0407
Abstract:
A scheme for designing the double-gap output cavity with two coupling apertures, as well as a method for calculating the external quality factor of the output cavity were proposed in this paper based on the equivalent-circuit theory. A double-gap out...
A scheme for designing the double-gap output cavity with two coupling apertures, as well as a method for calculating the external quality factor of the output cavity were proposed in this paper based on the equivalent-circuit theory. A double-gap out...
2013,
25: 411-414.
doi: 10.3788/HPLPB20132502.0411
Abstract:
A sequential test method based on Bayesian posterior probability was proposed to perform tests of hypotheses about probability of success of binomial distribution in complicated hypothesis conditions. The decision rules were constructed and the metho...
A sequential test method based on Bayesian posterior probability was proposed to perform tests of hypotheses about probability of success of binomial distribution in complicated hypothesis conditions. The decision rules were constructed and the metho...
2013,
25: 415-418.
doi: 10.3788/HPLPB20132502.0415
Abstract:
This paper presents a process of designing compact TE01-TE02 mode converters with broadband. Mode conversion condition are approximately derived while propagation constants vary along axis and initial structure of the mode converters is calculated. T...
This paper presents a process of designing compact TE01-TE02 mode converters with broadband. Mode conversion condition are approximately derived while propagation constants vary along axis and initial structure of the mode converters is calculated. T...
2013,
25: 419-422.
doi: 10.3788/HPLPB20132502.0419
Abstract:
Propagation characteristic of plane waves passing through infinite dielectric boards is studied using optical methods, and the effect of dielectric windows on microwave propagation is analyzed in the paper. The microwave discharge experiments of poly...
Propagation characteristic of plane waves passing through infinite dielectric boards is studied using optical methods, and the effect of dielectric windows on microwave propagation is analyzed in the paper. The microwave discharge experiments of poly...
2013,
25: 423-426.
doi: 10.3788/HPLPB20132502.0423
Abstract:
The thermal deformation of gridded electron gun in traveling wave tube has much influence on the performance of its electronic optics system and the problem has been investigated by means of the coupling of the thermal field and the mechanics field b...
The thermal deformation of gridded electron gun in traveling wave tube has much influence on the performance of its electronic optics system and the problem has been investigated by means of the coupling of the thermal field and the mechanics field b...
2013,
25: 427-430.
doi: 10.3788/HPLPB20132502.0427
Abstract:
On the basis of numerical calculation methods, thepropagation characteristics of the high-order mode TE31,12 in the conventional open cavity with weakly tapered cross-section and improved cavity are simulated by numerical computation. Diffractive qua...
On the basis of numerical calculation methods, thepropagation characteristics of the high-order mode TE31,12 in the conventional open cavity with weakly tapered cross-section and improved cavity are simulated by numerical computation. Diffractive qua...
Transmission characteristics of microwave rectangular waveguide with transverse inductive diaphragms
2013,
25: 431-435.
doi: 10.3788/HPLPB20132502.0431
Abstract:
The structure of the rectangular waveguide with transverse inductive diaphragms is approximately analyzed with the equivalent circuit theory of microwave transmission line two-port network. Calculation result shows that the widths of a pair of diaphr...
The structure of the rectangular waveguide with transverse inductive diaphragms is approximately analyzed with the equivalent circuit theory of microwave transmission line two-port network. Calculation result shows that the widths of a pair of diaphr...
2013,
25: 436-440.
doi: 10.3788/HPLPB20132502.0436
Abstract:
The rectangular close-packed antenna array is studied in the paper. The far-field directional diagram of the array is emulated, which indicates it is possible to get highly active combination based on the close-packed antenna array and the main beam ...
The rectangular close-packed antenna array is studied in the paper. The far-field directional diagram of the array is emulated, which indicates it is possible to get highly active combination based on the close-packed antenna array and the main beam ...
2013,
25: 441-445.
doi: 10.3788/HPLPB20132502.0441
Abstract:
Based on conformal construction of the physical model in the three-dimensional orthogonal mesh system, an integral-based conformal convolutional perfectly matched layer(CPML) algorithm is given for solving the open port truncation problem when the en...
Based on conformal construction of the physical model in the three-dimensional orthogonal mesh system, an integral-based conformal convolutional perfectly matched layer(CPML) algorithm is given for solving the open port truncation problem when the en...
2013,
25: 446-450.
doi: 10.3788/HPLPB20132502.0446
Abstract:
The paper presents the thermal and deformation analysis of electron gun cathode for Gyro-TWT using the finite element analysis software ANSYS, which obtains the temperature distribution and thermal deformation of the cathode model. In order to mainta...
The paper presents the thermal and deformation analysis of electron gun cathode for Gyro-TWT using the finite element analysis software ANSYS, which obtains the temperature distribution and thermal deformation of the cathode model. In order to mainta...
2013,
25: 451-454.
doi: 10.3788/HPLPB20132502.0451
Abstract:
Preliminary experimental research on a relativistic terahertz source with 0.14 THz based on the surface wave oscillator was carried out. The device adopts an overmoded rectangular slow wave structure for the sake of large power capacity and easy fabr...
Preliminary experimental research on a relativistic terahertz source with 0.14 THz based on the surface wave oscillator was carried out. The device adopts an overmoded rectangular slow wave structure for the sake of large power capacity and easy fabr...
2013,
25: 455-460.
doi: 10.3788/HPLPB20132502.0455
Abstract:
Researches on responses of an n-type silicon bar fixed in a rectangular waveguide to high power terahertz pulse have been carried out for the 0.3~0.4 THz band. The distribution of electromagnetic field components, voltage standing-wave ratio(VSWR) in...
Researches on responses of an n-type silicon bar fixed in a rectangular waveguide to high power terahertz pulse have been carried out for the 0.3~0.4 THz band. The distribution of electromagnetic field components, voltage standing-wave ratio(VSWR) in...
2013,
25: 461-464.
doi: 10.3788/HPLPB20132502.0461
Abstract:
The electron beam of high average power Free Electron Laser Terahertz scientific research device in Chinese Academy of Engineering Physics (CAEP) has the characteristic of high average current. Non-destructive measurement technique is required for th...
The electron beam of high average power Free Electron Laser Terahertz scientific research device in Chinese Academy of Engineering Physics (CAEP) has the characteristic of high average current. Non-destructive measurement technique is required for th...
2013,
25: 465-470.
doi: 10.3788/HPLPB20132502.0465
Abstract:
The rapid cycling synchrotron of the China Spallation Neutron Source is a high intensity proton accelerator, with an average beam power of 100 kW. The collective effects caused by the coupling impedances from the vacuum components may be the limit to...
The rapid cycling synchrotron of the China Spallation Neutron Source is a high intensity proton accelerator, with an average beam power of 100 kW. The collective effects caused by the coupling impedances from the vacuum components may be the limit to...
2013,
25: 471-476.
doi: 10.3788/HPLPB20132502.0471
Abstract:
With the computer program TRANSOPTR including space charge effect calculations, a axial injection line for the CYCIAE-100 cyclotron is designed. The focusing structure is confirmed after considering space, focusing elements, vacuum, space charge effe...
With the computer program TRANSOPTR including space charge effect calculations, a axial injection line for the CYCIAE-100 cyclotron is designed. The focusing structure is confirmed after considering space, focusing elements, vacuum, space charge effe...
2013,
25: 477-480.
doi: 10.3788/HPLPB20132502.0477
Abstract:
Some models of the space charge in magnetrons are reviewed. PIC simulations are taken on X band magnetrons to compare with the theory analysis. The Brilliouns theory is effective in getting the height and density of the hub, but it is difficult to ex...
Some models of the space charge in magnetrons are reviewed. PIC simulations are taken on X band magnetrons to compare with the theory analysis. The Brilliouns theory is effective in getting the height and density of the hub, but it is difficult to ex...
2013,
25: 481-484.
doi: 10.3788/HPLPB20132502.0481
Abstract:
To improve the scanning uniformity and beam extraction efficiency, and to solve the problem of beam central deviation of DG-type electron accelerators, a scanning system has been developed, whose scanning coil and self-correcting coil are set in the ...
To improve the scanning uniformity and beam extraction efficiency, and to solve the problem of beam central deviation of DG-type electron accelerators, a scanning system has been developed, whose scanning coil and self-correcting coil are set in the ...
2013,
25: 485-489.
doi: 10.3788/HPLPB20132502.0485
Abstract:
The space radiation environment could induce radiation damage on the electronic devices. As the performance of commercial devices is generally superior to that of radiation hardened devices, it is necessary to screen out the devices with good radiati...
The space radiation environment could induce radiation damage on the electronic devices. As the performance of commercial devices is generally superior to that of radiation hardened devices, it is necessary to screen out the devices with good radiati...
2013,
25: 490-494.
doi: 10.3788/HPLPB20132502.0490
Abstract:
This paper introduces the transmission line method which is used to calculate the coaxial response to X-ray and the drift-diffusion method which is used to calculate the parameters of semiconductor devices. Combining the transmission line method with...
This paper introduces the transmission line method which is used to calculate the coaxial response to X-ray and the drift-diffusion method which is used to calculate the parameters of semiconductor devices. Combining the transmission line method with...
2013,
25: 495-499.
doi: 10.3788/HPLPB20132502.0495
Abstract:
The excited-state nonlinearities of the C70/toluene solution are studied using a time-resolved non-degenerate pump-probe system. The 532 nm laser beam with 21 ps duration is used as the excitation and the laser beam of 600 nm with 10 ps duration is u...
The excited-state nonlinearities of the C70/toluene solution are studied using a time-resolved non-degenerate pump-probe system. The 532 nm laser beam with 21 ps duration is used as the excitation and the laser beam of 600 nm with 10 ps duration is u...
2013,
25: 500-504.
doi: 10.3788/HPLPB20132502.0500
Abstract:
The relations of the mass fraction and temperature of mixtures of water and dimethyl sulphoxide (DMSO) to refractive index are theoretically and experimentally studied. The empirical formula fit for calculating the refractive index of the mixture is ...
The relations of the mass fraction and temperature of mixtures of water and dimethyl sulphoxide (DMSO) to refractive index are theoretically and experimentally studied. The empirical formula fit for calculating the refractive index of the mixture is ...
2013,
25: 505-507.
doi: 10.3788/HPLPB20132502.0505
Abstract:
This paper studies parameters of InGaAsSb/AlGaAsSb multi-quantum-well (MQW) materials grown by molecular beam epitaxy (MBE), including the growth rate, growth temperature and flux for high quality MQW materials, respectively. As well, characterizatio...
This paper studies parameters of InGaAsSb/AlGaAsSb multi-quantum-well (MQW) materials grown by molecular beam epitaxy (MBE), including the growth rate, growth temperature and flux for high quality MQW materials, respectively. As well, characterizatio...
2013,
25: 508-512.
doi: 10.3788/HPLPB20132502.0508
Abstract:
The properties of ultrashort pulse propagation in metamaterials (MMs) are investigated, and special attention is paid to the anomalous phenomena of pulse splitting inaccessible in ordinary materials. It is found that the interaction of anomalous grou...
The properties of ultrashort pulse propagation in metamaterials (MMs) are investigated, and special attention is paid to the anomalous phenomena of pulse splitting inaccessible in ordinary materials. It is found that the interaction of anomalous grou...
2013,
25: 513-516.
doi: 10.3788/HPLPB20132502.0513
Abstract:
C-Ti granular films with different thickness were prepared, acting as the cathode emission film, to study the influence of granular film thickness on electron emission characteristics. When symmetric triangular wave voltages of different magnitudes a...
C-Ti granular films with different thickness were prepared, acting as the cathode emission film, to study the influence of granular film thickness on electron emission characteristics. When symmetric triangular wave voltages of different magnitudes a...
2013,
25: 517-521.
Abstract:
The transmission characteristics of ultra-short electron beams of the ultra-fast electron guns in scanning state were analysed, and the deflection distance of the ultra-short electron beams passing the deflection-scan system was calculated. The resul...
The transmission characteristics of ultra-short electron beams of the ultra-fast electron guns in scanning state were analysed, and the deflection distance of the ultra-short electron beams passing the deflection-scan system was calculated. The resul...
2013,
25: 522-526.
Abstract:
In this paper, the Hilbert spectrum is used to analyze the nuclear explosion and lightning electromagnetic pulse for NEMP and LEMP signals based on their non-stationary and non-linear characters. The region features of Hilbert spectrum of NEMP and LE...
In this paper, the Hilbert spectrum is used to analyze the nuclear explosion and lightning electromagnetic pulse for NEMP and LEMP signals based on their non-stationary and non-linear characters. The region features of Hilbert spectrum of NEMP and LE...
2013,
25: 527-530.
doi: 10.3788/HPLPB20132502.0527
Abstract:
An optical fiber array is designed for testing initial discharge time of coaxial multi-gap gas switch, it has less than 1 ns time consistency and consists of two parts: optical fiber probe array and multi-channel photoelectric convertor. Based on a 1...
An optical fiber array is designed for testing initial discharge time of coaxial multi-gap gas switch, it has less than 1 ns time consistency and consists of two parts: optical fiber probe array and multi-channel photoelectric convertor. Based on a 1...
2013,
25: 531-536.
doi: 10.3788/HPLPB20132502.0531
Abstract:
This paper presents a SPICE modeling method which combines the equivalent cable bundle method (ECBM) with the time-domain transmission line method. The parameters of the cable bundles are obtained by the finite element method. And the completed model...
This paper presents a SPICE modeling method which combines the equivalent cable bundle method (ECBM) with the time-domain transmission line method. The parameters of the cable bundles are obtained by the finite element method. And the completed model...
