Two-Dimensional Ultrafast X-ray Imager for Inertial Confinement Fusion Diagnosis

Cai, Houzhi; Lin, Kaixuan; Luo, Qiuyan; Wang, Dong; Huang, Junkun; Xu, Kangjing; Luo, Longjie; Liu, Jinyuan

doi:10.3390/photonics9050287

Search citation statements

Order By: Relevance

Paper Sections

Select...

深圳大学研制了基于短磁透镜聚焦成像的电子束时间放大X射线分幅相机其由电子脉冲展宽系统(含光电阴极、阳极栅网和漂移区...1

Citation Types

Supporting

Mentioning

Contrasting

Unclassified

Year Published

2023

2024

Publication Types

Select...

Article2

Relationship

Self Cite1

Independent1

Authors

Journals

Cited by 2 publications

(1 citation statement)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…快门传输效应将造成沿阴极脉冲传输方向窄的条纹图像, 限制了该方向的画幅大小, 如图4(b)~(d)所示. 时间分辨率越高, 沿阴极脉冲传输方向的画幅尺寸越小, 故需要采用双阴极脉冲对向传输方式来增大画幅尺寸 [46] . 快门传输效应也有优点, 即为新型条纹相机提供了一种研究思路, 时间放大分幅相机可利用该效应工作于条纹相机模式.…”

Section: 深圳大学研制了基于短磁透镜聚焦成像的电子束时间放大X射线分幅相机其由电子脉冲展宽系统(含光电阴极、阳极栅网和漂移区...unclassified

X-ray framing imaging technique applied in laser fusion

Cai,

Deng,

Luo

et al. 2023

Chin. Sci. Bull.

Self Cite

View full text Add to dashboard Cite

Section: 深圳大学研制了基于短磁透镜聚焦成像的电子束时间放大X射线分幅相机其由电子脉冲展宽系统(含光电阴极、阳极栅网和漂移区...unclassified

X-ray framing imaging technique applied in laser fusion

Cai,

Deng,

Luo

et al. 2023

Chin. Sci. Bull.

Self Cite

View full text Add to dashboard Cite

Dilation framing camera with the dual-pulse excitation technique

Cai,

Du,

Luo

et al. 2024

Appl. Opt.

View full text Add to dashboard Cite

In an inertial confinement fusion (ICF) ultrafast diagnostic system that is based on electron beam time-dilation, an ultrafast electrical pulse is used to excite a microstrip photocathode (PC), which generates a varying PC voltage to obtain a photoelectron velocity that varies with emission time. The photoelectron beam achieves time-dilation through the drift process and is then detected by a time-resolved sensor, thereby increasing the temporal resolution of the diagnostic system. A pulse time-dilation diagnostic system is simulated, while the sensor is a gated microchannel plate (MCP) detector with a temporal resolution of 100 ps and an excitation pulse on a PC with a slope of 3 V/ps; the diagnostic system achieves a temporal resolution of 11.12 ps. However, the excitation pulse creates a voltage difference across the PC. A voltage difference of 900 V can be acquired for a PC length of 60 mm, which yields a nonuniform spatial resolution ranging from 30.4 µm to approximately 3000 µm. Furthermore, the voltage difference across the PC also limits the frame size to 2.2 mm along the pulse propagation direction according to the simulation results. To achieve a uniform spatial resolution and a larger frame size, a dual-pulse excitation technique on a PC is presented, which is the technique to symmetrically apply voltage pulses at both ends of the PC microstrip. The theoretical results show that this technique will improve the uniformity of the PC voltage spatial distribution. When the PC pulse slope is 3 V/ps and the dual-pulse excitation technique is employed, the diagnostic system has a temporal resolution of 5.91 ps and a uniform spatial resolution of 30.4 µm. Furthermore, the frame size along the pulse propagation direction is improved to the effective length of the microstrip PC.

show abstract

Two-Dimensional Ultrafast X-ray Imager for Inertial Confinement Fusion Diagnosis

Cited by 2 publications

References 17 publications

X-ray framing imaging technique applied in laser fusion

X-ray framing imaging technique applied in laser fusion

Dilation framing camera with the dual-pulse excitation technique

Contact Info

Product

Resources

About