Ultrafast imaging of nanosecond pulse x-ray simulators

Smith, Graham W.; George, David J.; Harrison, David; Hill, Stephen; Hohlfelder, Robert James; Harper-Slaboszewicz, Victor Jozef; Gallegos, R.R.; Ingle, Martin B.; Simpson, P. T.

doi:10.1117/12.819937

Cited by 3 publications

(3 citation statements)

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“…Ehn and Yahui Li used a dual ICCD detection system with different gating settings for the two cameras, and successfully demonstrated real-time acquisition in formaldehyde with a premixed, laminar methane/oxygen flame, where the 2020 JINST 15 P03007 measured lifetimes range from 1.0 to 4.5 ns [15,22]. In this framework, it is essential to develop high-performance framing cameras to meet the current needs of various applications and, in turn, several high temporal resolution frame cameras have been developed recently [23,24]. An ultrahigh-speed frame camera with 1280 × 1024 spatial resolution, time jitter of 5 ns and a minimum exposure time of 3 ns [25] has been implemented by Pioneer in Cameras and Optoelectronics (PCO).…”

Section: Introductionmentioning

confidence: 99%

Design of a novel high-performance ultrafast optical framing camera

et al. 2020

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The analysis of fast physical phenomena is a relevant tool in several fields including atomic physics and photochemistry. In turn, to record phenomena occurring on an ultra-short time scale, one needs an imaging system that can accurately capture the event. In this paper, we propose a novel ultrafast optical framing camera that achieves a spatial resolution up to 36.6 LP/mm while keeping a high temporal resolution of 3.25 ns using a digital delay generator. Our technique involves the splitting of light into four beams and their imaging on four ICCD cameras. In addition, the data transfer system is designed to combine data-streams from multiple digital ports into a single output, thus providing a compact user interface. The characteristic parameters influencing the temporal resolution of the image intensifier has been analyzed, and the framing camera has been experimentally assessed. Our results show that a temporal resolution of 3.25 ns and a spatial resolution of 36.6 LP/mm can be obtained. We foresee the use of our apparatus for inertial confined fusion. K: Instrumentation for hadron therapy; Instrumentation for heavy-ion therapy 1Corresponding author.

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Section: Introductionmentioning

confidence: 99%

Design of a novel high-performance ultrafast optical framing camera

et al. 2020

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“…Their results suggest a general method of reconstructing images by seeding instability in nonlinear imaging systems. While, the nanosecond pulse images is widely used in optical processing 8 9 10 . Especially, in remote light detection and transmission, the nanosecond pulse images are usual low-level and relatively low repetition frequency.…”

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confidence: 99%

Reconstruction of pulse noisy images via stochastic resonance

Han

Liu

Sun

et al. 2015

Sci Rep

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We investigate a practical technology for reconstructing nanosecond pulse noisy images via stochastic resonance, which is based on the modulation instability. A theoretical model of this method for optical pulse signal is built to effectively recover the pulse image. The nanosecond noise-hidden images grow at the expense of noise during the stochastic resonance process in a photorefractive medium. The properties of output images are mainly determined by the input signal-to-noise intensity ratio, the applied voltage across the medium, and the correlation length of noise background. A high cross-correlation gain is obtained by optimizing these parameters. This provides a potential method for detecting low-level or hidden pulse images in various imaging applications.

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“…As with other kinds of stochastic resonance, signal amplification occurs at the expense of the noise background, leading to reconstruction of the noise-hidden images 3 . Nowadays, the nanosecond pulse images have been widely used in optical processing and are usually low-level in remote light detection and transmission 7 8 9 10 . Considering the rapid development of the pulse images and their practical applications, it is urgent to investigate the stochastic resonance with a simple structure and flexible design, which will promote the detection sensitivity of weak and high noisy images.…”

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confidence: 99%

Nonlinear restoration of pulse and high noisy images via stochastic resonance

Sun

Liu

Huang

et al. 2015

Sci Rep

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We propose a novel scheme for restoring pulse and high noisy images using stochastic resonance, which is based on the modulation instability and provides a cross-correlation gain higher than 8. As opposed to previously reported designs, this unique approach employs a continuous noise and pulse signal for the generation of modulation instability. The visibility and quality of output images can be improved by appropriately adjusting the system parameters. This provides a simple and feasible method for detecting low-level or hidden pulse images in various imaging applications.

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Ultrafast imaging of nanosecond pulse x-ray simulators

Cited by 3 publications

References 0 publications

Design of a novel high-performance ultrafast optical framing camera

Design of a novel high-performance ultrafast optical framing camera

Reconstruction of pulse noisy images via stochastic resonance

Nonlinear restoration of pulse and high noisy images via stochastic resonance

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