Application of a fast electrical pulse in gated multichannel plate camera

Liu, Jinyuan; Niu, Lihong; Peng, Weiwen; Zhang, Fengxia; Li, Li; Ou, Junfu; Yuan, Huatao; Yang, Qing; Niu, Hanben; Long, Jinghua

doi:10.1063/1.2737750

Cited by 26 publications

(10 citation statements)

References 12 publications

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“…Owing to the wide width (20 mm) of the strip line, four gating electrical pulses were employed to drive the whole strip line simultaneously to obtain a uniform gain. A high voltage ramp pulse generated by avalanche transistor circuit was used to drive two sharpening avalanche diode circuits [35]. Each of the sharpening avalanche diode circuits can produce two picosecond gating pulses.…”

Section: Research Articlementioning

confidence: 99%

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Extreme ultraviolet spectrometer for the Shenguang III laser facility

et al. 2015

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An extreme ultraviolet spectrometer has been developed for high-energy density physics experiments at the Shenguang-III (SG-III) laser facility. Alternative use of two different varied-line-spacing gratings covers a wavelength range of 10-260 Å. A newly developed x-ray framing camera with single wide strip line is designed to record time-gated spectra with ~70 ps temporal resolution and 20 lp/mm spatial resolution. The width of the strip line is up to 20 mm, enhancing the capability of the spatial resolving measurements. All components of the x-ray framing camera are roomed in an aluminum air box. The whole spectrometer is mounted on a diagnostic instrument manipulator at the SG-III laser facility for the first time. A new alignment method for the spectrometer based on the superimposition of two laser focal spots is developed. The approaches of the alignment including offline and online two steps are described. A carbon spectrum and an aluminum spectrum have been successfully recorded by the spectrometer using 2400 l/mm and 1200 l/mm gratings, respectively. The experimental spectral lines show that the spectral resolution of the spectrometer is about 0.2 Å and 1 Å for the 2400 l/mm and 1200 l/mm gratings, respectively. A theoretical calculation was carried out to estimate the maximum resolving power of the spectrometer.

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Section: Research Articlementioning

confidence: 99%

“…The exposure time measurement was similar to [35]. An ultraviolet laser (266 nm) with 30 ps duration was used as the calibration light source.…”

Section: Research Articlementioning

confidence: 99%

Extreme ultraviolet spectrometer for the Shenguang III laser facility

et al. 2015

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“…The pulses are obtained by first generating a high voltage fast step pulse using avalanche transistors in a Marx bank configuration and then shaping it using avalanche diodes. 14 This creates short pulses with a width of 220 ps and an amplitude of −1.9 kV (Fig. 2(b)).…”

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confidence: 99%

Dilation framing camera with 4 ps resolution

et al. 2016

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A framing camera using pulse-dilation technology is reported in this article. The camera uses pulse dilation of an electron signal from a pulsed photo-cathode (PC) to achieve high temporal resolution. While the PC is not pulsed, the measured temporal resolution of the camera without pulse-dilation is about 71 ps. While the excitation pulse is applied on the PC, the measured temporal resolution is improved to 4 ps by using the pulse-dilation technology. The spatial resolution of the dilation framing camera is also measured, which is better than 100 μm. The relationship between the temporal resolution and the PC bias voltage is obtained. The variation of the temporal resolution with the gradient of the PC excitation pulse is also provided.

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“…The structure of the nongain MCP framing camera is the same as the previous MCP gated framing camera. 1 The simulations of the nongain MCP are started by assuming some number of initial photoelectrons near the input end of the MCP. The photoelectron energy is sampled randomly from a Maxwell probability distribution, and the emission angle of each photoelectron is assigned by sampling from a cosine distribution.…”

Section: ͑6͒mentioning

confidence: 99%

“…1 Typically, exposure time of a framing camera gated by a MCP 0.5 mm thick is about 100 ps. The shortest exposure time of 35 ps was achieved by using a gated MCP 0.2 mm thick.…”

Section: Introductionmentioning

confidence: 99%

Monte Carlo simulation for microchannel plate framing camera

et al. 2010

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Abstract.A microchannel plate ͑MCP͒ framing camera is simulated by using the Monte Carlo method. Considering that the laser pulse width has effect on the experimental exposure time, we simulate the experimental exposure time varying with the laser pulse width. The gain characteristics of the MCP framing camera are simulated while the MCP is applied with very short electrical gating pulses. A new method is presented using a nongain MCP instead of a gain MCP.

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Application of a fast electrical pulse in gated multichannel plate camera

Cited by 26 publications

References 12 publications

Extreme ultraviolet spectrometer for the Shenguang III laser facility

Extreme ultraviolet spectrometer for the Shenguang III laser facility

Dilation framing camera with 4 ps resolution

Monte Carlo simulation for microchannel plate framing camera

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