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RSS2012 Vol. 24, No. 05
Recommend Articles
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2012,
24: 1009-1010.
Abstract:
A master oscillator power amplifier(MOPA) structured pulsed Yb fiber laser is set up. The single-frequency pulsed seed, with a repetition rate of 10 MHz, a pulse duration of about 8 ns, and an average power of 0.5 mW, is obtained by externally modula...
A master oscillator power amplifier(MOPA) structured pulsed Yb fiber laser is set up. The single-frequency pulsed seed, with a repetition rate of 10 MHz, a pulse duration of about 8 ns, and an average power of 0.5 mW, is obtained by externally modula...
2012,
24: 1011-1012.
Abstract:
The paper investigates the relationship between the change of nuclear sample enrichment and the relative position of detectors of the 252Cf source-driven noise analysis system. A Monte Carlo numerical simulation with varied 235U enrichment (85.15%, 9...
The paper investigates the relationship between the change of nuclear sample enrichment and the relative position of detectors of the 252Cf source-driven noise analysis system. A Monte Carlo numerical simulation with varied 235U enrichment (85.15%, 9...
2012,
24: 1013-1014.
doi: 10.3788/HPLPB20122405.1013
Abstract:
Gyrotron traveling-wave tube (gyro-TWT) with helical waveguide has wider instantaneous frequency bandwidth than that with smooth waveguide. This paper introduces the linear theory of its beam-wave interaction, and calculates the influence on linear g...
Gyrotron traveling-wave tube (gyro-TWT) with helical waveguide has wider instantaneous frequency bandwidth than that with smooth waveguide. This paper introduces the linear theory of its beam-wave interaction, and calculates the influence on linear g...
2012,
24: 1019-1023.
doi: 10.3788/HPLPB20122405.1019
Abstract:
Analytical expressions for the propagation of nonparaxial radial array Gaussian laser beams in coherent and incoherent combinations are derived and used to study their propagation properties in free space, where the effect of array beam parameters on...
Analytical expressions for the propagation of nonparaxial radial array Gaussian laser beams in coherent and incoherent combinations are derived and used to study their propagation properties in free space, where the effect of array beam parameters on...
2012,
24: 1024-1028.
doi: 10.3788/HPLPB20122405.1024
Abstract:
By using a legible and comprehensive physical model describing the generation and evolvement of ion densities in the plasma channel induced by intense femtosecond laser pulse, the work studied the temporal evolution of the plasma densities in femtose...
By using a legible and comprehensive physical model describing the generation and evolvement of ion densities in the plasma channel induced by intense femtosecond laser pulse, the work studied the temporal evolution of the plasma densities in femtose...
2012,
24: 1029-1032.
doi: 10.3788/HPLPB20122405.1029
Abstract:
By using the least square method, the phase fitting effects of deformable mirror are investigated with different actuator position deviations, and arrangements, coupling coefficients and numbers of actuators. The results show that, for the random low...
By using the least square method, the phase fitting effects of deformable mirror are investigated with different actuator position deviations, and arrangements, coupling coefficients and numbers of actuators. The results show that, for the random low...
2012,
24: 1033-1037.
doi: 10.3788/HPLPB20122405.1033
Abstract:
The paper studies the influence of gain module aspect ratio on output power and extraction efficiency in MOPA-structured HF chemical laser. A finite difference method based on coordinate system transformation is used to calculate the output power of ...
The paper studies the influence of gain module aspect ratio on output power and extraction efficiency in MOPA-structured HF chemical laser. A finite difference method based on coordinate system transformation is used to calculate the output power of ...
2012,
24: 1038-1042.
doi: 10.3788/HPLPB20122405.1038
Abstract:
A fast and memory-saving registration algorithm is proposed for image sequence-based computer vision applications. First, a new scheme, which is independent of the image content, is adopted to generate a series of feature points. Then, a forward-and-...
A fast and memory-saving registration algorithm is proposed for image sequence-based computer vision applications. First, a new scheme, which is independent of the image content, is adopted to generate a series of feature points. Then, a forward-and-...
2012,
24: 1043-1046.
doi: 10.3788/HPLPB20122405.1043
Abstract:
For supersonic-supersonic ejector, the design model and corresponding analysis were presented, and the relation of design parameters and the performance was partly revealed. The results revealed the confliction of two performance objectives and the c...
For supersonic-supersonic ejector, the design model and corresponding analysis were presented, and the relation of design parameters and the performance was partly revealed. The results revealed the confliction of two performance objectives and the c...
2012,
24: 1047-1051.
doi: 10.3788/HPLPB20122405.1047
Abstract:
A six-rod series connection pulsed Nd:YAG laser was presented. 44 matrices were used to theoretically analyze the deviation of optical axis affected by the offset angle of Nd:YAG rods in the resonator, and the tolerance of the offset angle is given. ...
A six-rod series connection pulsed Nd:YAG laser was presented. 44 matrices were used to theoretically analyze the deviation of optical axis affected by the offset angle of Nd:YAG rods in the resonator, and the tolerance of the offset angle is given. ...
2012,
24: 1052-1056.
doi: 10.3788/HPLPB20122405.1052
Abstract:
According to the theory of optical fiber transmission mode, combined with the structure of single-mode tapered fiber, the paper uses finite difference beam propagation method (FD-BPM) to simulate the transmission of fiber mode at 1 550 nm wavelength,...
According to the theory of optical fiber transmission mode, combined with the structure of single-mode tapered fiber, the paper uses finite difference beam propagation method (FD-BPM) to simulate the transmission of fiber mode at 1 550 nm wavelength,...
2012,
24: 1057-1062.
doi: 10.3788/HPLPB20122405.1057
Abstract:
The paper studies the initiated damage morphology and the subsequent damage growth on fused silicas exit-surface and input-surface in air under nanosecond laser irradiation at 1 064 nm and 532 nm. The results demonstrate a significant dependence of t...
The paper studies the initiated damage morphology and the subsequent damage growth on fused silicas exit-surface and input-surface in air under nanosecond laser irradiation at 1 064 nm and 532 nm. The results demonstrate a significant dependence of t...
2012,
24: 1063-1066.
doi: 10.3788/HPLPB20122405.1063
Abstract:
Complex natural background(e.g. clouds and ground)suppression is a difficult problem for dim and small target detection in infrared image sequences. A dim and small target background suppression method based on wave atoms as a variant of two-dimensio...
Complex natural background(e.g. clouds and ground)suppression is a difficult problem for dim and small target detection in infrared image sequences. A dim and small target background suppression method based on wave atoms as a variant of two-dimensio...
2012,
24: 1067-1070.
doi: 10.3788/HPLPB20122405.1067
Abstract:
Laser-induced cavitation bubble collapse sound waves in liquid are measured by the PZT hydrophone, and the bubble content of laser-induced cavitation bubble during the first oscillating cycle is calculated. In combination with the analysis of the eff...
Laser-induced cavitation bubble collapse sound waves in liquid are measured by the PZT hydrophone, and the bubble content of laser-induced cavitation bubble during the first oscillating cycle is calculated. In combination with the analysis of the eff...
2012,
24: 1071-1075.
doi: 10.3788/HPLPB20122405.1071
Abstract:
In numerical simulation of laser propagation through atmospheric turbulence considering time characteristics, the generation of long turbulent phase screen is critical. In this paper, the multi-point prediction interpolation algorithm based on the ph...
In numerical simulation of laser propagation through atmospheric turbulence considering time characteristics, the generation of long turbulent phase screen is critical. In this paper, the multi-point prediction interpolation algorithm based on the ph...
2012,
24: 1076-1080.
doi: 10.3788/HPLPB20122405.1076
Abstract:
A one-dimensional KBA microscope for diagnosis of planar targets, working at 4.75 keV, has been experimentally studied. According to the requirements of spatial resolution and working environments, the optical structure of one-dimensional KBA microsc...
A one-dimensional KBA microscope for diagnosis of planar targets, working at 4.75 keV, has been experimentally studied. According to the requirements of spatial resolution and working environments, the optical structure of one-dimensional KBA microsc...
2012,
24: 1081-1084.
doi: 10.3788/HPLPB20122405.1081
Abstract:
An in-chamber, mini X-ray imager employing a pinhole and a logarithmic spiral crystal has been manufactured to obtain the K-shell emission monochromatic X-ray images. The imager was tested on the Yang accelerator and successfully obtained the hydroge...
An in-chamber, mini X-ray imager employing a pinhole and a logarithmic spiral crystal has been manufactured to obtain the K-shell emission monochromatic X-ray images. The imager was tested on the Yang accelerator and successfully obtained the hydroge...
2012,
24: 1085-1088.
doi: 10.3788/HPLPB20122405.1085
Abstract:
For further understanding of the proton acceleration by target normal sheath acceleration (TNSA), the effect of the proton initial locations on the quality of the proton beam is investigated by two-dimensional particle-in-cell (2D-PIC) code Flips2D. ...
For further understanding of the proton acceleration by target normal sheath acceleration (TNSA), the effect of the proton initial locations on the quality of the proton beam is investigated by two-dimensional particle-in-cell (2D-PIC) code Flips2D. ...
2012,
24: 1089-1092.
doi: 10.3788/HPLPB20122405.1089
Abstract:
Potassium dihydrogen phosphate (KDP) crystals were baked at different temperatures in the same procedure. Samples from similar locations of as-grown 500-mm-class KDP crystals were used to measure the transmission spectra and laser damage thresholds. ...
Potassium dihydrogen phosphate (KDP) crystals were baked at different temperatures in the same procedure. Samples from similar locations of as-grown 500-mm-class KDP crystals were used to measure the transmission spectra and laser damage thresholds. ...
2012,
24: 1093-1097.
doi: 10.3788/HPLPB20122405.1093
Abstract:
In chirped pulse amplification laser systems, the damage threshold of the final grating in the pulse compressor seriously limits the energy output. This paper proposes a measurement, by which the exact correlation between the local fluence and local ...
In chirped pulse amplification laser systems, the damage threshold of the final grating in the pulse compressor seriously limits the energy output. This paper proposes a measurement, by which the exact correlation between the local fluence and local ...
2012,
24: 1098-1102.
doi: 10.3788/HPLPB20122405.1098
Abstract:
The paper investigates the resolution of soft X-ray KBA microscope and analyzes its influencing factors, including diffractive effect, geometrical aberration, slope error and surface roughness of specula. A calculation model of the KBA microscope is ...
The paper investigates the resolution of soft X-ray KBA microscope and analyzes its influencing factors, including diffractive effect, geometrical aberration, slope error and surface roughness of specula. A calculation model of the KBA microscope is ...
2012,
24: 1103-1106.
doi: 10.3788/HPLPB20122405.1103
Abstract:
The Monte Carlo code SRIM was used to simulate the process of Hf ion plasma source ion implantation in Cu substrate. The relationship between energy and stopping power, the relationship between ion energy and range, and ion distribution of different ...
The Monte Carlo code SRIM was used to simulate the process of Hf ion plasma source ion implantation in Cu substrate. The relationship between energy and stopping power, the relationship between ion energy and range, and ion distribution of different ...
2012,
24: 1107-1110.
doi: 10.3788/HPLPB20122405.1107
Abstract:
Using electron trace program and CST electromagnetic studio, the paper investigated a key component of mini bremsstrahlung X-ray source, perturbator, designed the distribution of the perturbator magnetic field, and studied its effect on the electron ...
Using electron trace program and CST electromagnetic studio, the paper investigated a key component of mini bremsstrahlung X-ray source, perturbator, designed the distribution of the perturbator magnetic field, and studied its effect on the electron ...
2012,
24: 1117-1120.
doi: 10.3788/HPLPB20122405.1117
Abstract:
The aluminum wedge target was produced by diamond turning technology. The actual profile of the wedge targets inclined surface is found to be a conical one. The surface roughness was characterized by Veeco NT1100 white light interferometer. The resul...
The aluminum wedge target was produced by diamond turning technology. The actual profile of the wedge targets inclined surface is found to be a conical one. The surface roughness was characterized by Veeco NT1100 white light interferometer. The resul...
2012,
24: 1121-1125.
doi: 10.3788/HPLPB20122405.1121
Abstract:
Sc films have been successfully grown on Si substrates by electron beam deposition (EBD). The microstructure and surface morphology of Sc films prepared with different deposition parameters were examined by X-ray diffraction and scanning electron mic...
Sc films have been successfully grown on Si substrates by electron beam deposition (EBD). The microstructure and surface morphology of Sc films prepared with different deposition parameters were examined by X-ray diffraction and scanning electron mic...
2012,
24: 1126-1130.
doi: 10.3788/HPLPB20122405.1126
Abstract:
To acquire temporal and spatial distribution characteristics of particle density for plasma generated by hypervelocity impact, the paper synthetically considered the laws of mass conservation, momentum conservation, and energy conservation, and Maxwe...
To acquire temporal and spatial distribution characteristics of particle density for plasma generated by hypervelocity impact, the paper synthetically considered the laws of mass conservation, momentum conservation, and energy conservation, and Maxwe...
2012,
24: 1131-1136.
doi: 10.3788/HPLPB20122405.1131
Abstract:
This article investigates the efficiency optimization of harmonic gyroklystron. The electron beam-wave interaction is characterized by a nonlinear pendulum equation with two dimensionless parameters: a bunching parameter and a relative phase. The eff...
This article investigates the efficiency optimization of harmonic gyroklystron. The electron beam-wave interaction is characterized by a nonlinear pendulum equation with two dimensionless parameters: a bunching parameter and a relative phase. The eff...
2012,
24: 1137-1140.
doi: 10.3788/HPLPB20122405.1137
Abstract:
A series of experiments have been performed to study the radiation characteristics of single-source monopole plasma antenna. The radiation intensity and pattern were measured carefully, and then the antennas main lobe beamwidth and direction factor w...
A series of experiments have been performed to study the radiation characteristics of single-source monopole plasma antenna. The radiation intensity and pattern were measured carefully, and then the antennas main lobe beamwidth and direction factor w...
2012,
24: 1141-1145.
doi: 10.3788/HPLPB20122405.1141
Abstract:
This paper proposes a finite-difference time-domain(FDTD) method to calculate the internal electromagnetic pulse (IEMP) within cavities of any shapes in three-dimensional rectangular coordinate system. By adopting conformal FDTD techniques, this meth...
This paper proposes a finite-difference time-domain(FDTD) method to calculate the internal electromagnetic pulse (IEMP) within cavities of any shapes in three-dimensional rectangular coordinate system. By adopting conformal FDTD techniques, this meth...
2012,
24: 1146-1150.
doi: 10.3788/HPLPB20122405.1146
Abstract:
The time-resolved measurement system which can work at very high speed is necessary in electron beam parameter diagnosis for Dragon-Ⅰ linear induction accelerator（LIA）. A two-frame gated camera system has been developed and put into operation. The ca...
The time-resolved measurement system which can work at very high speed is necessary in electron beam parameter diagnosis for Dragon-Ⅰ linear induction accelerator（LIA）. A two-frame gated camera system has been developed and put into operation. The ca...
2012,
24: 1151-1154.
doi: 10.3788/HPLPB20122405.1151
Abstract:
The neutron sensitivity of a helium scintillation fission neutron detector was investigated through theoretical and experimental methods. The energy deposition of neutrons with different energy and fragments of fission targets with different thicknes...
The neutron sensitivity of a helium scintillation fission neutron detector was investigated through theoretical and experimental methods. The energy deposition of neutrons with different energy and fragments of fission targets with different thicknes...
2012,
24: 1155-1159.
doi: 10.3788/HPLPB20122405.1155
Abstract:
During beam injection in Hefei Light Source(HLS), the amplitude of betatron oscillation varies rapidly, and the frequency varies greatly. It is a typical non-stationary process. Using the traditional method to process the time series signal acquired ...
During beam injection in Hefei Light Source(HLS), the amplitude of betatron oscillation varies rapidly, and the frequency varies greatly. It is a typical non-stationary process. Using the traditional method to process the time series signal acquired ...
2012,
24: 1160-1164.
doi: 10.3788/HPLPB20122405.1160
Abstract:
The dissipative dynamics of a two-level system interacting with a reservoir has been solved by Markovian and non-Markovian approaches. The results in conditions of two different spectral densities, namely the detuning spectral density and a photonic ...
The dissipative dynamics of a two-level system interacting with a reservoir has been solved by Markovian and non-Markovian approaches. The results in conditions of two different spectral densities, namely the detuning spectral density and a photonic ...
2012,
24: 1165-1168.
doi: 10.3788/HPLPB20122405.1165
Abstract:
The measurement of DD neutron yield by activation is presented. This method is based on the inelastic scattering reaction of 115In with DD neutron, and the activated spectrum is counted by HPGe detector. The relation between the counts of detected ra...
The measurement of DD neutron yield by activation is presented. This method is based on the inelastic scattering reaction of 115In with DD neutron, and the activated spectrum is counted by HPGe detector. The relation between the counts of detected ra...
2012,
24: 1169-1172.
doi: 10.3788/HPLPB20122405.1169
Abstract:
The thermal desorption behavior of ion-implanted helium in erbium and scandium films was investigated by means of thermal helium desorption spectrometry. The peak positions of ion-implanted helium desorption are the same for erbium films with differe...
The thermal desorption behavior of ion-implanted helium in erbium and scandium films was investigated by means of thermal helium desorption spectrometry. The peak positions of ion-implanted helium desorption are the same for erbium films with differe...
2012,
24: 1173-1176.
doi: 10.3788/HPLPB20122405.1173
Abstract:
(PrNd)32.3Nb0.70Al0.60Cu0.20B1.03Fe65.17 (weight percent) alloys were prepared via different powdering processes, i.e. air classification(AC) and hydrogenation decomposition(HD). Their microstrutures and magnetic properties were investigated. The res...
(PrNd)32.3Nb0.70Al0.60Cu0.20B1.03Fe65.17 (weight percent) alloys were prepared via different powdering processes, i.e. air classification(AC) and hydrogenation decomposition(HD). Their microstrutures and magnetic properties were investigated. The res...
2012,
24: 1177-1180.
doi: 10.3788/HPLPB20122405.1177
Abstract:
This paper investigates the breakdown characteristics of high pressure nitrogen dielectric gas spark switch from the aspects of theoretical analysis, experimental study and software simulation. The theoretical pressure of the high pressure spark swit...
This paper investigates the breakdown characteristics of high pressure nitrogen dielectric gas spark switch from the aspects of theoretical analysis, experimental study and software simulation. The theoretical pressure of the high pressure spark swit...
2012,
24: 1181-1185.
doi: 10.3788/HPLPB20122405.1181
Abstract:
Based on a compact (2 m1 m1.5 m) pulsed current generator (~100 kA, 60 ns), a table-top X-pinch device was constructed and tested. The load current was almost unchanged for X-pinches made using different wires (5 m, 8 m, 10 m and 13 m Wu wires, 13 m ...
Based on a compact (2 m1 m1.5 m) pulsed current generator (~100 kA, 60 ns), a table-top X-pinch device was constructed and tested. The load current was almost unchanged for X-pinches made using different wires (5 m, 8 m, 10 m and 13 m Wu wires, 13 m ...
2012,
24: 1186-1190.
doi: 10.3788/HPLPB20122405.1186
Abstract:
This paper introduces a type of program-controlled pulse generator, which can adjust the amplitude, width and frequency of the output pulses, and precisely control the delay time of the ten-channel output pulsesequences. The pulse generator includes ...
This paper introduces a type of program-controlled pulse generator, which can adjust the amplitude, width and frequency of the output pulses, and precisely control the delay time of the ten-channel output pulsesequences. The pulse generator includes ...
2012,
24: 1191-1194.
doi: 10.3788/HPLPB20122405.1191
Abstract:
This paper presents a switch assembly based on reversely switched dynistor(RSD). The RSD-based assembly has been tested with the working voltage of 10 kV, repetition frequency of 0.2 Hz and peak current of about 107 kA. The peak power is larger than ...
This paper presents a switch assembly based on reversely switched dynistor(RSD). The RSD-based assembly has been tested with the working voltage of 10 kV, repetition frequency of 0.2 Hz and peak current of about 107 kA. The peak power is larger than ...
2012,
24: 1195-1200.
doi: 10.3788/HPLPB20122405.1195
Abstract:
The plasma source (cable guns) of the plasma opening switch(POS) on QiangguangⅠgenerator was chosen as the study object. The plasma source performance was investigated by using charge collectors. Experimental results show that the plasma ejection den...
The plasma source (cable guns) of the plasma opening switch(POS) on QiangguangⅠgenerator was chosen as the study object. The plasma source performance was investigated by using charge collectors. Experimental results show that the plasma ejection den...
2012,
24: 1201-1205.
doi: 10.3788/HPLPB20122405.1201
Abstract:
According to the physical design and electrical parameters of the 300 kA single induction cavity developed for linear transformer drivers, a more detailed circuit model for single induction cavity has been proposed, in consideration of gas spark swit...
According to the physical design and electrical parameters of the 300 kA single induction cavity developed for linear transformer drivers, a more detailed circuit model for single induction cavity has been proposed, in consideration of gas spark swit...
2012,
24: 1206-1210.
doi: 10.3788/HPLPB20122405.1206
Abstract:
A dielectric barrier discharge (DBD) plasma jet source is presented, which is low-cost and small in size, fed with neon and driven by the a self-developed microsecond pulse power supply with a peak voltage of 0-35 kV and a frequency of 1 kHz. Influen...
A dielectric barrier discharge (DBD) plasma jet source is presented, which is low-cost and small in size, fed with neon and driven by the a self-developed microsecond pulse power supply with a peak voltage of 0-35 kV and a frequency of 1 kHz. Influen...
2012,
24: 1211-1216.
doi: 10.3788/HPLPB20122405.1211
Abstract:
A method to calculate power flow for magnetically-insulated inductive voltage adder was developed based on the transmission line algorithm, in which space charge limited flow and magnetic insulation flow were introduced. This method can estimate the ...
A method to calculate power flow for magnetically-insulated inductive voltage adder was developed based on the transmission line algorithm, in which space charge limited flow and magnetic insulation flow were introduced. This method can estimate the ...
2012,
24: 1217-1220.
doi: 10.3788/HPLPB20122405.1217
Abstract:
The basic theory and experimental results of measuring diode voltage with differential absorption method were reported. With the MCNP model of 'bremsstrahlung-attenuation-detector' system, the relation curve of the radiation dose and the diode voltag...
The basic theory and experimental results of measuring diode voltage with differential absorption method were reported. With the MCNP model of 'bremsstrahlung-attenuation-detector' system, the relation curve of the radiation dose and the diode voltag...
2012,
24: 1221-1224.
doi: 10.3788/HPLPB20122405.1221
Abstract:
The circuit equations of variable-impedance transmission lines are usually solved by numerical circuit simulation with simulation code such as PSpice. The commonly-used method is the equal-length segmentation method which divides the transmission lin...
The circuit equations of variable-impedance transmission lines are usually solved by numerical circuit simulation with simulation code such as PSpice. The commonly-used method is the equal-length segmentation method which divides the transmission lin...
2012,
24: 1225-1228.
doi: 10.3788/HPLPB20122405.1225
Abstract:
A test stand was developed to measure magnetic properties of toroidal magnetic cores at a constant magnetization rate of 8-12 T/s. The test stand consists of pulse forming network(PFN), discharge switches, load and magnetic core. On the basis of the ...
A test stand was developed to measure magnetic properties of toroidal magnetic cores at a constant magnetization rate of 8-12 T/s. The test stand consists of pulse forming network(PFN), discharge switches, load and magnetic core. On the basis of the ...
2012,
24: 1229-1233.
doi: 10.3788/HPLPB20122405.1229
Abstract:
When dry-type pulsed capacitors of large capacitance are used in vacuum, flashover in low pressure area is inevitable. This paper analyzes the mechanism and solution for the flashover of the capacitors in vacuum. The surface flashover voltage of thre...
When dry-type pulsed capacitors of large capacitance are used in vacuum, flashover in low pressure area is inevitable. This paper analyzes the mechanism and solution for the flashover of the capacitors in vacuum. The surface flashover voltage of thre...
2012,
24: 1234-1238.
doi: 10.3788/HPLPB20122405.1234
Abstract:
A coaxial field distortion gas spark switch was designed and experiments were carried out to study the effect of trigger pulse peak on discharge channel number of the switch gaps in N2 in two cases. In the first case, only the trigger pulse was appli...
A coaxial field distortion gas spark switch was designed and experiments were carried out to study the effect of trigger pulse peak on discharge channel number of the switch gaps in N2 in two cases. In the first case, only the trigger pulse was appli...
2012,
24: 1239-1243.
doi: 10.3788/HPLPB20122405.1239
Abstract:
The paper proposes a mixed-mode LTD(linear transformer driver) module. Each brick of the mixed-mode LTD module is a multi-stage Marx circuit, where only the switches of the first several stages need external trigger, and the others work in self-break...
The paper proposes a mixed-mode LTD(linear transformer driver) module. Each brick of the mixed-mode LTD module is a multi-stage Marx circuit, where only the switches of the first several stages need external trigger, and the others work in self-break...
2012,
24: 1244-1246.
doi: 10.3788/HPLPB20122405.1244
Abstract:
Dark current initiated by field emission and multipacting caused by secondary emission have been observed in various radio frequency or microwave components. These phenomena are believed to be major limitations on the stable operation of the particle...
Dark current initiated by field emission and multipacting caused by secondary emission have been observed in various radio frequency or microwave components. These phenomena are believed to be major limitations on the stable operation of the particle...
2012,
24: 1247-1250.
doi: 10.3788/HPLPB20122405.1247
Abstract:
Experimental data of magnetic core under repeated magnetization, usually used during the design of high power pulsed equipment, can not accurately reflect its performance under pulsed magnetization. A method of magnetic core test and data processing ...
Experimental data of magnetic core under repeated magnetization, usually used during the design of high power pulsed equipment, can not accurately reflect its performance under pulsed magnetization. A method of magnetic core test and data processing ...
2012,
24: 1251-1255.
doi: 10.3788/HPLPB20122405.1251
Abstract:
In order to trigger the two-electrode gas switch without a trigger electrode, not only a high magnitude, fast rise time output pulse is needed but also high reliability is required for the switch trigger in high power system. A six-stage Marx trigger...
In order to trigger the two-electrode gas switch without a trigger electrode, not only a high magnitude, fast rise time output pulse is needed but also high reliability is required for the switch trigger in high power system. A six-stage Marx trigger...
2012,
24: 1256-1260.
doi: 10.3788/HPLPB20122405.1256
Abstract:
For single-use and cost-effective pulsed power system such as exploding foil initiators, a micro planar gas spark switch is designed and fabricated based on microfabrication. The size of the switch is only about 1.5 cm0.5 cm. Device testing of the sw...
For single-use and cost-effective pulsed power system such as exploding foil initiators, a micro planar gas spark switch is designed and fabricated based on microfabrication. The size of the switch is only about 1.5 cm0.5 cm. Device testing of the sw...
2012,
24: 1015-1018.
doi: 10.3788/HPLPB20122405.1015
Abstract:
设计并搭建了化学激光器1/4环柱型增益发生器的实验系统。按设计流量进行了出光实验，功率计探测到的出光功率在60 W左右。测量了燃烧室温度及压力，与Alpha激光器HL911-3实验数据类似，燃烧室温度及压力曲线都存在一个爬升阶段。环柱型增益发生器沿角向扩张的特点使得光腔区压力很低，仅为0.5 kPa左右。为验证环柱状增益区的有效形成，对3对取光孔分别进行了出光实验，结果表明每对取光孔都有功率输出，证明设计的增益发生器运行正常。
2012,
24: 1111-1116.
doi: 10.3788/HPLPB20122405.1111
Abstract:
将 5,5-二甲基乙内酰脲(DMH)新型无氰电镀体系应用于惯性约束聚变金空腔靶制备中。利用扫描电镜和库仑计法研究了以DMH为配位剂的镀液组成和工艺条件对电镀金层质量等的影响。结果表明:该镀液体系具有良好的稳定性，控制镀液中金盐质量浓度为8 g/L，DMH质量浓度为80 g/L时，在阴极电流密度1.5 A/dm2、pH值9~10、温度45 ℃的条件下，可制得结晶致密、厚度均一的金镀层。
